joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4e4b10
Capabilities:
Delete file
Encode data using xor

Disassembly:
push 0xffffffffffffffff
push 0x5bfb9c
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x10
push ebx
push ebp
push esi
mov esi, ecx
push edi
mov dword [esp + 0x1c], esi
call fcn.004df460
lea edi, [esi + 0xa4]
mov dword [esp + 0x28], 0
mov ecx, edi
call sub.MFC42.DLL_CString::CString_3
lea ebp, [esi + 0xa8]
mov byte [esp + 0x28], 1
mov ecx, ebp
call sub.MFC42.DLL_CString::CString_3
mov dword [esi], 0x60f9c0
mov eax, dword [str.BrowseBox]
lea ebx, [esi + 4]
push eax
mov ecx, ebx
mov byte [esp + 0x2c], 2
call fcn.004c9dae
mov eax, 0x78
mov ecx, 0x15
mov dword [esi + 0x1c], eax
push 5
mov dword [esi + 0x20], ecx
call dword [sym.imp.USER32.dll_GetSysColor]
push ebx
lea ecx, [esp + 0x1c]
push str.CoreLibQUIControl_
push ecx
mov dword [esi + 0x70], eax
mov dword [esi + 0xa0], 0
call sub.MFC42.DLL_operator
push str.Filter
lea edx, [esp + 0x18]
push eax
push edx
mov byte [esp + 0x34], 3
call sub.MFC42.DLL_operator_3
mov eax, dword [eax]
push 0
push 0
push eax
lea eax, [esp + 0x1c]
mov bl, 4
push eax
mov byte [esp + 0x38], bl
call fcn.00401127
add esp, 0x10
push eax
mov ecx, edi
mov byte [esp + 0x2c], 5
call sub.MFC42.DLL_CString::operator_3
lea ecx, [esp + 0x10]
mov byte [esp + 0x28], bl
call sub.MFC42.DLL_CString::CString
lea ecx, [esp + 0x14]
mov byte [esp + 0x28], 3
call sub.MFC42.DLL_CString::CString
lea ecx, [esp + 0x18]
mov byte [esp + 0x28], 2
call sub.MFC42.DLL_CString::CString
push 0x664668
mov ecx, ebp
call fcn.004c9dae
mov eax, dword [0x6bf5e4]
mov ebp, dword [sym.imp.MSVCRT.dll_fputc]
test eax, eax
jne 0x4e4c93
push 0x652844
push str.browsebox_file.ico
call dword [sym.imp.MSVCRT.dll_fopen]
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x4e4c6e
xor edi, edi
xor ecx, ecx
push ebx
mov cl, byte [edi + 0x60ee60]
xor ecx, 0x7d
push ecx
call ebp
add esp, 8
inc edi
cmp edi, 0x47e
jb 0x4e4c49
push ebx
call dword [sym.imp.MSVCRT.dll_fclose]
add esp, 4
push 0x10
push 0
push 0
push 1
push str.browsebox_file.ico
push 0
call dword [sym.imp.USER32.dll_LoadImageA]
push str.browsebox_file.ico
mov dword [0x6bf5e4], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
mov eax, dword [0x6bf5e8]
test eax, eax
jne 0x4e4d01
push 0x652844
push str.browsebox_dir.ico
call dword [sym.imp.MSVCRT.dll_fopen]
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x4e4cdc
xor edi, edi
xor edx, edx
push ebx
mov dl, byte [edi + str.mm_]
xor edx, 0x7d
push edx
call ebp
add esp, 8
inc edi
cmp edi, 0x47e
jb 0x4e4cb7
push ebx
call dword [sym.imp.MSVCRT.dll_fclose]
add esp, 4
push 0x10
push 0
push 0
push 1
push str.browsebox_dir.ico
push 0
call dword [sym.imp.USER32.dll_LoadImageA]
push str.browsebox_dir.ico
mov dword [0x6bf5e8], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
mov ecx, dword [esp + 0x20]
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x1c
ret
Function at 0x4e6140
Capabilities:
Access peb ldr_data

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x5bfcb0
push eax
mov dword fs:[0], esp
sub esp, 0x18
push ebp
push esi
push edi
mov edi, dword [esp + 0x34]
mov ebp, ecx
mov eax, dword [edi]
mov ecx, dword [eax - 8]
test ecx, ecx
je 0x4e6235
lea ecx, [esp + 0x34]
lea esi, [ebp + 0x2c]
push edi
push ecx
mov ecx, esi
call fcn.004e75c0
mov eax, dword [esi + 4]
mov ecx, dword [esp + 0x34]
cmp ecx, eax
je 0x4e61a3
mov ecx, dword [ecx + 0xc]
mov eax, dword [edi]
push ecx
push eax
call dword [sym.imp.MSVCRT.dll__mbsicmp]
add esp, 8
test eax, eax
jl 0x4e61a3
lea eax, [esp + 0x34]
jmp 0x4e61ae
mov eax, dword [esi + 4]
mov dword [esp + 0xc], eax
lea eax, [esp + 0xc]
mov eax, dword [eax]
mov ecx, dword [ebp + 0x30]
cmp eax, ecx
jne 0x4e622e
lea edx, [esp + 0x38]
lea eax, [esp + 0x14]
push edx
push edi
push eax
call fcn.004e8de0
add esp, 0xc
mov edi, eax
push edi
lea ecx, [esp + 0x10]
mov dword [esp + 0x30], 0
call sub.MFC42.DLL_CString::CString_4
mov ecx, dword [edi + 4]
mov dword [esp + 0x10], ecx
lea edx, [esp + 0xc]
lea eax, [esp + 0x1c]
push edx
push eax
mov ecx, esi
mov byte [esp + 0x34], 1
call fcn.004e66c0
lea ecx, [esp + 0xc]
mov byte [esp + 0x2c], 0
call sub.MFC42.DLL_CString::CString
lea ecx, [esp + 0x14]
mov dword [esp + 0x2c], 0xffffffff
call sub.MFC42.DLL_CString::CString
pop edi
pop esi
pop ebp
mov ecx, dword [esp + 0x18]
mov dword fs:[0], ecx
add esp, 0x24
ret 8
mov ecx, dword [esp + 0x38]
mov dword [eax + 0x10], ecx
mov ecx, dword [esp + 0x24]
pop edi
pop esi
pop ebp
mov dword fs:[0], ecx
add esp, 0x24
ret 8
Function at 0x4e9510
Capabilities:
Access peb ldr_data

Disassembly:
push 0xffffffffffffffff
push 0x5bfd56
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0xc
push ebx
push ebp
push esi
mov esi, ecx
push edi
mov dword [esp + 0x18], esi
lea ebp, [esi + 4]
mov ecx, ebp
call sub.MFC42.DLL_CString::CString_3
mov al, byte [esp + 0x2c]
mov cl, byte [esp + 0x2c]
xor ebx, ebx
push 0x18
mov dword [esp + 0x28], ebx
mov byte [esi + 8], al
mov byte [esi + 9], cl
mov byte [esi + 0x10], bl
call sub.MFC42.DLL_operatornew
mov edi, eax
add esp, 4
lea ecx, [esp + 0x14]
mov dword [esp + 0x10], edi
mov dword [edi + 4], ebx
mov dword [edi + 0x14], 1
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::_Lockit::constructor_void_]
cmp dword [0x6bf608], ebx
jne 0x4e9594
mov dword [0x6bf608], edi
mov dword [edi], ebx
mov edx, dword [0x6bf608]
mov dword [esp + 0x10], ebx
mov dword [edx + 8], ebx
mov edx, dword [0x6bf604]
lea ecx, [esp + 0x14]
inc edx
mov dword [0x6bf604], edx
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::_Lockit::destructor_void_]
mov eax, dword [esp + 0x10]
cmp eax, ebx
je 0x4e95bc
push eax
call sub.MFC42.DLL_operatordelete
add esp, 4
mov edi, dword [0x6bf608]
push 0x18
call sub.MFC42.DLL_operatornew
mov dword [eax + 4], edi
mov dword [eax + 0x14], ebx
mov dword [esi + 0xc], eax
mov dword [esi + 0x14], ebx
mov dword [eax], eax
mov eax, dword [esi + 0xc]
add esp, 4
mov dword [eax + 8], eax
mov ecx, dword [esp + 0x30]
mov eax, dword [esp + 0x2c]
push ecx
mov ecx, ebp
mov byte [esp + 0x28], 1
mov dword [esi], eax
call sub.MFC42.DLL_CString::operator_3
mov ecx, dword [esp + 0x1c]
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x18
ret 8
Function at 0x4f19f0
Capabilities:
Get file size
Read file via mapping

Disassembly:
sub esp, 0xc
push ebx
mov eax, dword [esp + 0x14]
push ebp
push esi
xor ebp, ebp
push edi
push ebp
push 0x80
push 3
push ebp
push 1
push SysReAllocStringLen
push eax
xor ebx, ebx
xor esi, esi
mov dword [esp + 0x2c], ebp
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
cmp edi, 0xffffffff
je 0x4f1ab4
lea ecx, [esp + 0x14]
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
test eax, eax
je 0x4f1a99
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x18]
mov edx, ecx
or edx, eax
je 0x4f1a99
test eax, eax
jg 0x4f1a99
jl 0x4f1a53
cmp ecx, 0x6400000
ja 0x4f1a99
push 0
push 0
push 0
push 2
push 0
push edi
call dword [sym.imp.KERNEL32.dll_CreateFileMappingA]
mov ebx, eax
test ebx, ebx
je 0x4f1a99
push 0
push 0
push 0
push 4
push ebx
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov esi, eax
test esi, esi
je 0x4f1a99
mov ecx, dword [esp + 0x24]
mov edx, dword [esp + 0x14]
lea eax, [esp + 0x10]
push eax
push ecx
push edx
push esi
call fcn.004f1890
add esp, 0x10
mov ebp, eax
push edi
mov edi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call edi
test esi, esi
je 0x4f1aad
push esi
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
test ebx, ebx
je 0x4f1ab4
push ebx
call edi
pop edi
mov eax, ebp
pop esi
pop ebp
pop ebx
add esp, 0xc
ret
Function at 0x4f1da0
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x617150
push 0x4cae32
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x28
push ebx
push esi
push edi
xor esi, esi
mov dword [ebp - 0x1c], esi
mov dword [ebp - 4], esi
push str.qsefyjil
push esi
push 1
push esi
call dword [sym.imp.KERNEL32.dll_CreateEventA]
mov dword [0x6bf71c], eax
cmp eax, esi
je 0x4f1edd
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
je 0x4f1edd
push 0x652844
mov eax, dword [ebp + 0x10]
push eax
call dword [sym.imp.MSVCRT.dll_fopen]
add esp, 8
mov edi, eax
mov dword [ebp - 0x34], edi
cmp edi, esi
je 0x4f1e47
mov dword [ebp - 0x38], esi
mov ebx, dword [sym.imp.MSVCRT.dll_fputc]
cmp esi, dword [0x657d08]
push edi
jae 0x4f1e3c
xor ecx, ecx
mov cl, byte [esi + 0x6106cc]
xor ecx, 0x7d
push ecx
call ebx
add esp, 8
inc esi
mov dword [ebp - 0x38], esi
jmp 0x4f1e1c
call dword [sym.imp.MSVCRT.dll_fclose]
add esp, 4
xor esi, esi
cmp dword [ebp + 0x14], esi
je 0x4f1e63
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
call fcn.004f2340
add esp, 8
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4f1edd
push esi
push 0x80
push 3
push esi
push esi
push 0xc0000000
push str..hkSymbolicLink
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov dword [0x6bf714], eax
cmp eax, 0xffffffff
je 0x4f1edd
mov dword [ebp - 0x24], esi
push esi
push esi
push esi
push 0x4f1d90
push esi
push esi
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov dword [ebp - 0x24], eax
cmp eax, esi
je 0x4f1edd
mov dword [0x6bf718], eax
mov ecx, dword [ebp + 8]
mov dword [ebp - 0x28], ecx
push esi
lea edx, [ebp - 0x2c]
push edx
push 4
lea eax, [ebp - 0x30]
push eax
push 8
lea ecx, [ebp - 0x28]
push ecx
push 0x8000201c
mov edx, dword [0x6bf714]
push edx
call dword [sym.imp.KERNEL32.dll_DeviceIoControl]
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4f1edd
mov dword [ebp - 0x1c], 1
mov dword [ebp - 4], 0xffffffff
call fcn.004f1f00
mov eax, edi
mov ecx, dword [ebp - 0x10]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x10

Function at 0x4f1f00
Capabilities:
Delete file
Terminate thread

Disassembly:
mov edi, dword [ebp - 0x1c]
cmp edi, esi
jne 0x4f1f43
mov eax, dword [0x6bf71c]
cmp eax, esi
je 0x4f1f1d
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6bf71c], esi
mov eax, dword [0x6bf714]
cmp eax, 0xffffffff
je 0x4f1f34
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6bf714], esi
mov eax, dword [ebp - 0x24]
cmp eax, esi
je 0x4f1f43
push esi
push eax
call dword [sym.imp.KERNEL32.dll_TerminateThread]
mov eax, dword [ebp + 0x10]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
ret

Function at 0x4f2130
Capabilities:
Log keystrokes

Disassembly:
mov eax, dword [0x6bf71c]
push 0xffffffffffffffff
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
test eax, eax
jne 0x4f2155
push 1
push eax
call fcn.004f2180
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret
xor eax, eax
ret
Function at 0x4f2160
Capabilities:
Log keystrokes

Disassembly:
push 1
push 1
call fcn.004f2180
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret

Function at 0x4f21f0
Capabilities:
Create service

Disassembly:
mov eax, dword [esp + 0xc]
push 0
push 0
push 0
mov ecx, dword [esp + 0x10]
push 0
push 0
push eax
mov eax, dword [esp + 0x20]
push 1
push 3
push 1
push 0xf01ff
push eax
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_CreateServiceA]
test eax, eax
jne 0x4f2249
push esi
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
call esi
cmp eax, 0x431
je 0x4f2245
call esi
push eax
push str.failure:_CreateService__error_code:_u_n
push 0x6bf720
call dword [sym.imp.MSVCRT.dll_sprintf]
add esp, 0xc
xor eax, eax
pop esi
ret
push eax
call dword [sym.imp.ADVAPI32.dll_CloseServiceHandle]
mov eax, 1
ret

Function at 0x4f22f0
Capabilities:
Stop service

Disassembly:
mov eax, dword [esp + 8]
mov ecx, dword [esp + 4]
sub esp, 0x1c
push esi
push 0xf01ff
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_OpenServiceA]
mov esi, eax
test esi, esi
jne 0x4f2314
pop esi
add esp, 0x1c
ret
lea edx, [esp + 4]
push edi
push edx
push 1
push esi
call dword [sym.imp.ADVAPI32.dll_ControlService]
push esi
mov edi, eax
call dword [sym.imp.ADVAPI32.dll_CloseServiceHandle]
mov eax, edi
pop edi
pop esi
add esp, 0x1c
ret

Function at 0x4f3c90
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 0xc]
push ebp
xor ebp, ebp
push esi
cmp ebx, 1
push edi
jl 0x4f3cab
cmp ebx, 8
jg 0x4f3cab
mov eax, 1
jmp 0x4f3cad
xor eax, eax
mov esi, dword [esp + 0x14]
push str.bad_pack_level
push eax
push esi
call fcn.004f24f0
mov eax, dword [esi + 0x6af70]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af78], ebp
jne 0x4f3ce4
mov dword [esi + 0x6af78], 1
mov dword [esi + 0x6af70], 0x10000
mov ecx, 0x7fff
xor eax, eax
lea edi, [esi + 0x4af70]
mov dword [esi + 0x6af6c], ebp
rep stosd dword es:[edi], eax
mov ax, word [ebx*8 + 0x6172b2]
xor ecx, ecx
mov dword [esi + 0x6af98], eax
mov cx, word [ebx*8 + 0x6172b0]
xor edx, edx
mov dword [esi + 0x6af9c], ecx
mov dx, word [ebx*8 + 0x6172b4]
xor eax, eax
mov dword [esi + 0x6afa0], edx
mov ax, word [ebx*8 + 0x6172b6]
cmp ebx, 2
mov dword [esi + 0x6af94], eax
jg 0x4f3d45
mov eax, dword [esp + 0x1c]
or byte [eax], 4
jmp 0x4f3d51
cmp ebx, 8
jl 0x4f3d51
mov eax, dword [esp + 0x1c]
or byte [eax], 2
lea edi, [esi + 0x1af70]
push 0x10000
push edi
push esi
mov dword [esi + 0x6af84], ebp
mov dword [esi + 0x6af74], ebp
call dword [esi + 0xc]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af90], eax
je 0x4f3dca
cmp eax, 0xffffffff
je 0x4f3dca
cmp eax, 0x106
mov dword [esi + 0x6af8c], ebp
jae 0x4f3d95
push esi
call fcn.004f3fe0
add esp, 4
mov dword [esi + 0x6af7c], ebp
xor eax, eax
mov edx, dword [esi + 0x6af7c]
xor ecx, ecx
mov cl, byte [edi + eax]
and edx, 0x3ff
and ecx, 0x7fff
shl edx, 5
xor ecx, edx
inc eax
cmp eax, 2
mov dword [esi + 0x6af7c], ecx
jb 0x4f3d9d
pop edi
pop esi
pop ebp
pop ebx
ret
mov dword [esi + 0x6af8c], 1
mov dword [esi + 0x6af90], ebp
pop edi
pop esi
pop ebp
pop ebx
ret
Function at 0x4f5060
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x4f506b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x4f516e
push edi
mov edi, esi
shr edi, 3
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
mov ebx, eax
shr ebx, 8
mov eax, dword [edx*4 + 0x617300]
sub esi, 8
xor eax, ebx
inc ecx
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x617300]
xor eax, edx
inc ecx
dec edi
jne 0x4f5086
pop edi
test esi, esi
je 0x4f5190
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x617300]
xor eax, edx
inc ecx
dec esi
jne 0x4f5172
pop esi
pop ebx
not eax
ret

Function at 0x4f51a0
Capabilities:
Generate random numbers using the delphi lcg
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 4]
push esi
mov esi, dword [esp + 0xc]
mov edx, dword [ecx]
and esi, 0xff
mov eax, edx
and eax, 0xff
xor eax, esi
shr edx, 8
mov eax, dword [eax*4 + 0x617300]
xor eax, edx
mov edx, dword [ecx + 4]
mov dword [ecx], eax
and eax, 0xff
add eax, edx
mov edx, dword [ecx + 8]
imul eax, eax, 0x8088405
inc eax
mov esi, edx
mov dword [ecx + 4], eax
and esi, 0xff
shr eax, 0x18
xor eax, esi
pop esi
shr edx, 8
mov eax, dword [eax*4 + 0x617300]
xor eax, edx
mov dword [ecx + 8], eax
ret
Function at 0x4f53d0
Capabilities:
Get file size
Parse pe header
Read file on windows

Disassembly:
sub esp, 0x44
lea eax, [esp + 0x10]
push esi
mov esi, dword [esp + 0x4c]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GetFileInformationByHandle]
test eax, eax
jne 0x4f53f2
mov eax, 0x200
pop esi
add esp, 0x44
ret
mov eax, dword [esp + 0x14]
push ebp
mov edx, eax
xor ebp, ebp
and edx, 1
je 0x4f5405
mov ebp, 1
test al, 2
je 0x4f540c
or ebp, 2
test al, 4
je 0x4f5413
or ebp, 4
mov ecx, eax
and ecx, 0x10
je 0x4f541d
or ebp, 0x10
test al, 0x20
je 0x4f5424
or ebp, 0x20
test ecx, ecx
je 0x4f5430
or ebp, 0x40000000
jmp 0x4f5436
or ebp, 0x80000000
or ebp, 0x1000000
test edx, edx
jne 0x4f5446
or ebp, 0x800000
push ebx
push edi
push 0
push esi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, 0x28
mov dword [esp + 0x14], eax
jbe 0x4f54f5
mov edi, dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
push 0
push 0
push esi
call edi
mov ebx, dword [sym.imp.KERNEL32.dll_ReadFile]
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x60]
push 2
push edx
push esi
call ebx
push 0
push 0
push 0x24
push esi
call edi
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x20]
push 4
push ecx
push esi
call ebx
cmp word [esp + 0x58], 0x54ad
jne 0x4f54f5
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x14]
lea edx, [eax + 0x34]
cmp ecx, edx
jbe 0x4f54f5
push 0
push 0
push eax
push esi
call edi
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x24]
push 4
push ecx
push esi
call ebx
mov eax, dword [esp + 0x1c]
cmp eax, 0x5a4d
je 0x4f54ef
cmp eax, 0x454e
je 0x4f54ef
cmp eax, 0x454c
je 0x4f54ef
cmp eax, 0x4550
jne 0x4f54f5
or ebp, 0x400000
mov eax, dword [esp + 0x5c]
pop edi
test eax, eax
pop ebx
je 0x4f5501
mov dword [eax], ebp
mov eax, dword [esp + 0x58]
pop ebp
test eax, eax
je 0x4f5510
mov edx, dword [esp + 8]
mov dword [eax], edx
mov esi, dword [esp + 0x58]
test esi, esi
je 0x4f5559
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x20]
push eax
push ecx
call fcn.004f5330
mov dword [esi], eax
mov eax, dword [esp + 0x30]
mov dword [esi + 4], edx
mov edx, dword [esp + 0x34]
push edx
push eax
call fcn.004f5330
mov ecx, dword [esp + 0x2c]
mov dword [esi + 8], eax
mov dword [esi + 0xc], edx
mov edx, dword [esp + 0x28]
push ecx
push edx
call fcn.004f5330
mov dword [esi + 0x10], eax
add esp, 0x18
mov dword [esi + 0x14], edx
mov esi, dword [esp + 0x5c]
test esi, esi
je 0x4f5598
mov edx, dword [esp + 0x2c]
lea eax, [esp + 0x50]
lea ecx, [esp + 0x4c]
push eax
mov eax, dword [esp + 0x2c]
push ecx
push edx
push eax
call fcn.004f5360
mov ecx, dword [esp + 0x5c]
mov edx, dword [esp + 0x60]
and ecx, 0xffff
and edx, 0xffff
shl ecx, 0x10
add esp, 0x10
or ecx, edx
mov dword [esi], ecx
xor eax, eax
pop esi
add esp, 0x44
ret
Function at 0x4f5750
Capabilities:
Write file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
mov ebp, dword [esp + 0x10]
mov al, byte [ebx + 0x2d]
push esi
mov esi, dword [esp + 0x10]
push edi
test al, al
je 0x4f57d5
mov eax, dword [ebx + 0x3c]
test eax, eax
je 0x4f5781
cmp dword [ebx + 0x40], ebp
jae 0x4f5781
push eax
call sub.MFC42.DLL_operatordelete
add esp, 4
mov dword [ebx + 0x3c], 0
mov eax, dword [ebx + 0x3c]
test eax, eax
jne 0x4f579b
lea eax, [ebp + ebp]
push eax
call sub.MFC42.DLL_operatornew
add esp, 4
mov dword [ebx + 0x3c], eax
mov dword [ebx + 0x40], ebp
mov edi, dword [ebx + 0x3c]
mov ecx, ebp
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
xor esi, esi
test ebp, ebp
jbe 0x4f57d2
lea edi, [ebx + 0x30]
mov eax, dword [ebx + 0x3c]
mov cl, byte [esi + eax]
push ecx
push edi
call fcn.004f5220
mov edx, dword [ebx + 0x3c]
add esp, 8
mov byte [esi + edx], al
inc esi
cmp esi, ebp
jb 0x4f57b7
mov esi, dword [ebx + 0x3c]
mov edx, dword [ebx + 0x20]
test edx, edx
je 0x4f581d
mov eax, dword [ebx + 0x24]
mov edi, dword [ebx + 0x28]
lea ecx, [eax + ebp]
cmp ecx, edi
jb 0x4f57f9
pop edi
pop esi
mov dword [ebx + 0x14], 0x30000
pop ebp
xor eax, eax
pop ebx
ret 8
mov ecx, ebp
lea edi, [eax + edx]
mov edx, ecx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov eax, dword [ebx + 0x24]
pop edi
add eax, ebp
pop esi
mov dword [ebx + 0x24], eax
mov eax, ebp
pop ebp
pop ebx
ret 8
mov eax, dword [ebx + 4]
test eax, eax
je 0x4f583f
lea ecx, [esp + 0x14]
push 0
push ecx
push ebp
push esi
push eax
call dword [sym.imp.KERNEL32.dll_WriteFile]
mov eax, dword [esp + 0x14]
pop edi
pop esi
pop ebp
pop ebx
ret 8
pop edi
pop esi
mov dword [ebx + 0x14], 0x1000000
pop ebp
xor eax, eax
pop ebx
ret 8
Function at 0x4f5d20
Capabilities:
Read file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
push esi
mov edx, dword [ebx + 0x84]
test edx, edx
je 0x4f5d99
mov eax, dword [ebx + 0x8c]
mov ebp, dword [ebx + 0x88]
cmp eax, ebp
jae 0x4f5dea
mov ecx, dword [esp + 0x14]
sub ebp, eax
cmp ebp, ecx
jbe 0x4f5d4f
mov ebp, ecx
mov ecx, ebp
lea esi, [eax + edx]
mov eax, dword [esp + 0x10]
mov edx, ecx
push edi
mov edi, eax
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push ebp
and ecx, 3
push eax
rep movsb byte es:[edi], byte [esi]
mov edx, dword [ebx + 0x8c]
mov ecx, dword [ebx + 0x74]
mov eax, dword [ebx + 0x78]
add edx, ebp
add ecx, ebp
push eax
mov dword [ebx + 0x8c], edx
mov dword [ebx + 0x74], ecx
call fcn.004f5060
add esp, 0xc
mov dword [ebx + 0x78], eax
mov eax, ebp
pop edi
pop esi
pop ebp
pop ebx
ret 8
mov eax, dword [ebx + 0x7c]
test eax, eax
je 0x4f5de3
mov edx, dword [esp + 0x14]
mov esi, dword [esp + 0x10]
lea ecx, [esp + 0x14]
push 0
push ecx
push edx
push esi
push eax
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x4f5dea
mov eax, dword [esp + 0x14]
mov ecx, dword [ebx + 0x74]
add ecx, eax
push eax
mov eax, dword [ebx + 0x78]
push esi
push eax
mov dword [ebx + 0x74], ecx
call fcn.004f5060
add esp, 0xc
mov dword [ebx + 0x78], eax
mov eax, dword [esp + 0x14]
pop esi
pop ebp
pop ebx
ret 8
mov dword [ebx + 0x14], 0x1000000
pop esi
pop ebp
xor eax, eax
pop ebx
ret 8
Function at 0x4f8eb0
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x4f8ebb
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x4f8fbe
push edi
mov edi, esi
shr edi, 3
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
mov ebx, eax
shr ebx, 8
mov eax, dword [edx*4 + 0x617300]
sub esi, 8
xor eax, ebx
inc ecx
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov edx, dword [edx*4 + 0x617300]
shr eax, 8
xor edx, eax
inc ecx
mov eax, edx
and eax, 0xff
xor eax, ebx
xor ebx, ebx
mov bl, byte [ecx + 1]
mov eax, dword [eax*4 + 0x617300]
shr edx, 8
xor eax, edx
inc ecx
mov edx, eax
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x617300]
xor eax, edx
inc ecx
dec edi
jne 0x4f8ed6
pop edi
test esi, esi
je 0x4f8fe0
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x617300]
xor eax, edx
inc ecx
dec esi
jne 0x4f8fc2
pop esi
pop ebx
not eax
ret

Function at 0x4f8ff0
Capabilities:
Generate random numbers using the delphi lcg
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 4]
push esi
mov esi, dword [esp + 0xc]
mov edx, dword [ecx]
and esi, 0xff
mov eax, edx
and eax, 0xff
xor eax, esi
shr edx, 8
mov eax, dword [eax*4 + 0x617300]
xor eax, edx
mov edx, dword [ecx + 4]
mov dword [ecx], eax
and eax, 0xff
add eax, edx
mov edx, dword [ecx + 8]
imul eax, eax, 0x8088405
inc eax
mov esi, edx
mov dword [ecx + 4], eax
and esi, 0xff
shr eax, 0x18
xor eax, esi
pop esi
shr edx, 8
mov eax, dword [eax*4 + 0x617300]
xor eax, edx
mov dword [ecx + 8], eax
ret