joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4da1a0
Capabilities:
Delete file
Encode data using xor

Disassembly:
push 0xffffffffffffffff
push 0x5a478c
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.004d4af0
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], 0x5f23f8
mov eax, dword [str.BrowseBox]
lea ebx, [esi + 4]
push eax
mov ecx, ebx
mov byte [esp + 0x2c], 2
call sub.MFC42.DLL_CString::operator
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_4
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.004010f0
add esp, 0x10
push eax
mov ecx, edi
mov byte [esp + 0x2c], 5
call sub.MFC42.DLL_CString::operator_1
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 0x641dc4
mov ecx, ebp
call sub.MFC42.DLL_CString::operator
mov eax, dword [0x6bf1bc]
mov ebp, dword [sym.imp.MSVCRT.dll_fputc]
test eax, eax
jne 0x4da323
push 0x63062c
push str.browsebox_file.ico
call dword [sym.imp.MSVCRT.dll_fopen]
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x4da2fe
xor edi, edi
xor ecx, ecx
push ebx
mov cl, byte [edi + 0x5f1898]
xor ecx, 0x7d
push ecx
call ebp
add esp, 8
inc edi
cmp edi, 0x47e
jb 0x4da2d9
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 [0x6bf1bc], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
mov eax, dword [0x6bf1c0]
test eax, eax
jne 0x4da391
push 0x63062c
push str.browsebox_dir.ico
call dword [sym.imp.MSVCRT.dll_fopen]
mov ebx, eax
add esp, 8
test ebx, ebx
je 0x4da36c
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 0x4da347
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 [0x6bf1c0], 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 0x4db7d0
Capabilities:
Access peb ldr_data

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x5a48a0
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 0x4db8c5
lea ecx, [esp + 0x34]
lea esi, [ebp + 0x2c]
push edi
push ecx
mov ecx, esi
call fcn.004dcc50
mov eax, dword [esi + 4]
mov ecx, dword [esp + 0x34]
cmp ecx, eax
je 0x4db833
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 0x4db833
lea eax, [esp + 0x34]
jmp 0x4db83e
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 0x4db8be
lea edx, [esp + 0x38]
lea eax, [esp + 0x14]
push edx
push edi
push eax
call fcn.004de470
add esp, 0xc
mov edi, eax
push edi
lea ecx, [esp + 0x10]
mov dword [esp + 0x30], 0
call sub.MFC42.DLL_CString::CString_2
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.004dbd50
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 0x4deba0
Capabilities:
Access peb ldr_data

Disassembly:
push 0xffffffffffffffff
push 0x5a4946
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 [0x6bf1e0], ebx
jne 0x4dec24
mov dword [0x6bf1e0], edi
mov dword [edi], ebx
mov edx, dword [0x6bf1e0]
mov dword [esp + 0x10], ebx
mov dword [edx + 8], ebx
mov edx, dword [0x6bf1dc]
lea ecx, [esp + 0x14]
inc edx
mov dword [0x6bf1dc], edx
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::_Lockit::destructor_void_]
mov eax, dword [esp + 0x10]
cmp eax, ebx
je 0x4dec4c
push eax
call sub.MFC42.DLL_operatordelete
add esp, 4
mov edi, dword [0x6bf1e0]
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_1
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 0x4e7002
Capabilities:
Encode data using xor

Disassembly:
pushfd
pop dword [esp]
bt edx, esp
clc
xor ebx, 0x72ab0556
test si, sp
xor ebp, 0x4ecff6b3
stc
stc
xor edx, 0x99fdb5dd
call fcn.00801184
mov al, byte [0x7c1048c4]
lds edx, [edi - 0x13]
jb 0x4e706a
sbb dh, byte [ebx - 0x3f]
in eax, dx
invalid
push 0x212dbd01
pop eax
popal
invalid
or dword [ebp - 0x1413b127], 0xa
pop eax
xor byte [edx], 0x11
and ebx, ebp
sahf
pushfd
mov gs, ecx
inc edi
out 0x48, al
dec eax
mov ah, 0x9d
movntps xmmword [edi + 0x5e], xmm6
xor dh, ah
insd dword es:[edi], dx
aas
mov al, byte [0xcfd91466]
mov byte ds:[0x39691b87], al
js 0x4e7067
xchg esp, eax
push 0xffffffffffffff91
loop 0x4e70b8
cmp ebp, dword [edi - 0x17]
jae 0x4e703a
push ecx
sub ah, byte [edx + 0x49]
adc eax, 0xce63e0ce
nop
pop esp
aam 0x16
test al, 0x40
push edx
loop 0x4e709f
xor byte [esi + 0x256aa78], dl
or ebx, dword [ebp - 0x1fd8e4bf]
mov bh, 0xdb
das
push esi
add cl, byte [ebx]
popfd
inc ecx
sbb esp, dword [edi]
loopne 0x4e705f
fld xword [edi]
xlatb
lcall 0x2656, 0x5385c945
mov cl, 0xa4
mov byte [0x11cd1baa], al
xchg esi, eax
dec ecx
mov al, byte [0x3107e16c]
inc edi
or dword [ebp + edi*8 + 0x7fbbd99b], esp
scasb al, byte es:[edi]
cmc
and dh, byte [eax - 0x79]
adc dword [esi - 0x1e935fb7], edx
pop es
xor dword [edi + 9], eax
movsb byte es:[edi], byte [esi]
std
wait
fnstcw word [ebx + 0x22f5ae7f]
jo 0x4e7054
hlt

Function at 0x4e7100
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 closesocket
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 0x4e71c4
lea ecx, [esp + 0x14]
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
test eax, eax
je 0x4e71a9
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x18]
mov edx, ecx
or edx, eax
je 0x4e71a9
test eax, eax
jg 0x4e71a9
jl 0x4e7163
cmp ecx, 0x6400000
ja 0x4e71a9
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 0x4e71a9
push 0
push 0
push 0
push 4
push ebx
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov esi, eax
test esi, esi
je 0x4e71a9
mov ecx, dword [esp + 0x24]
mov edx, dword [esp + 0x14]
lea eax, [esp + 0x10]
push eax
push ecx
push edx
push esi
call fcn.004e6fa0
add esp, 0x10
mov ebp, eax
push edi
mov edi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call edi
test esi, esi
je 0x4e71bd
push esi
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
test ebx, ebx
je 0x4e71c4
push ebx
call edi
pop edi
mov eax, ebp
pop esi
pop ebp
pop ebx
add esp, 0xc
ret
Function at 0x4e74b0
Capabilities:
Create thread

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5f9ea0
push 0x45be06
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 [0x6bf2f4], eax
cmp eax, esi
je 0x4e75ed
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
je 0x4e75ed
push 0x63062c
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 0x4e7557
mov dword [ebp - 0x38], esi
mov ebx, dword [sym.imp.MSVCRT.dll_fputc]
cmp esi, dword [0x6359fc]
push edi
jae 0x4e754c
xor ecx, ecx
mov cl, byte [esi + 0x5f341c]
xor ecx, 0x7d
push ecx
call ebx
add esp, 8
inc esi
mov dword [ebp - 0x38], esi
jmp 0x4e752c
call dword [sym.imp.MSVCRT.dll_fclose]
add esp, 4
xor esi, esi
cmp dword [ebp + 0x14], esi
je 0x4e7573
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
call fcn.004e7a50
add esp, 8
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4e75ed
push esi
push 0x80
push 3
push esi
push esi
push 0xc0000000
push str..hkSymbolicLink
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov dword [0x6bf2ec], eax
cmp eax, 0xffffffff
je 0x4e75ed
mov dword [ebp - 0x24], esi
push esi
push esi
push esi
push 0x4e74a0
push esi
push esi
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov dword [ebp - 0x24], eax
cmp eax, esi
je 0x4e75ed
mov dword [0x6bf2f0], 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 [0x6bf2ec]
push edx
call dword [sym.imp.KERNEL32.dll_DeviceIoControl]
mov dword [ebp - 0x20], eax
cmp eax, esi
je 0x4e75ed
mov dword [ebp - 0x1c], 1
mov dword [ebp - 4], 0xffffffff
call fcn.004e7610
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 0x4e7610
Capabilities:
Delete file
Terminate thread

Disassembly:
mov edi, dword [ebp - 0x1c]
cmp edi, esi
jne 0x4e7653
mov eax, dword [0x6bf2f4]
cmp eax, esi
je 0x4e762d
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6bf2f4], esi
mov eax, dword [0x6bf2ec]
cmp eax, 0xffffffff
je 0x4e7644
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [0x6bf2ec], esi
mov eax, dword [ebp - 0x24]
cmp eax, esi
je 0x4e7653
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 0x4e7840
Capabilities:
Log keystrokes

Disassembly:
mov eax, dword [0x6bf2f4]
push 0xffffffffffffffff
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
test eax, eax
jne 0x4e7865
push 1
push eax
call fcn.004e7890
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret
xor eax, eax
ret
Function at 0x4e7870
Capabilities:
Log keystrokes

Disassembly:
push 1
push 1
call fcn.004e7890
add esp, 4
push eax
call dword [sym.imp.USER32.dll_MapVirtualKeyA]
ret

Function at 0x4e7900
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 0x4e7959
push esi
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
call esi
cmp eax, 0x431
je 0x4e7955
call esi
push eax
push str.failure:_CreateService__error_code:_u_n
push 0x6bf2f8
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 0x4e7a00
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 0x4e7a24
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 0x4e93a0
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 0x4e93bb
cmp ebx, 8
jg 0x4e93bb
mov eax, 1
jmp 0x4e93bd
xor eax, eax
mov esi, dword [esp + 0x14]
push str.bad_pack_level
push eax
push esi
call fcn.004e7c00
mov eax, dword [esi + 0x6af70]
add esp, 0xc
cmp eax, ebp
mov dword [esi + 0x6af78], ebp
jne 0x4e93f4
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 + 0x5fa002]
xor ecx, ecx
mov dword [esi + 0x6af98], eax
mov cx, word [ebx*8 + 0x5fa000]
xor edx, edx
mov dword [esi + 0x6af9c], ecx
mov dx, word [ebx*8 + 0x5fa004]
xor eax, eax
mov dword [esi + 0x6afa0], edx
mov ax, word [ebx*8 + 0x5fa006]
cmp ebx, 2
mov dword [esi + 0x6af94], eax
jg 0x4e9455
mov eax, dword [esp + 0x1c]
or byte [eax], 4
jmp 0x4e9461
cmp ebx, 8
jl 0x4e9461
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 0x4e94da
cmp eax, 0xffffffff
je 0x4e94da
cmp eax, 0x106
mov dword [esi + 0x6af8c], ebp
jae 0x4e94a5
push esi
call fcn.004e96f0
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 0x4e94ad
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 0x4ea770
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov ecx, dword [esp + 8]
test ecx, ecx
jne 0x4ea77b
xor eax, eax
ret
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
cmp esi, 8
not eax
jb 0x4ea87e
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
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 + 0x5fa050]
xor eax, edx
inc ecx
dec edi
jne 0x4ea796
pop edi
test esi, esi
je 0x4ea8a0
mov edx, eax
xor ebx, ebx
mov bl, byte [ecx]
and edx, 0xff
xor edx, ebx
shr eax, 8
mov edx, dword [edx*4 + 0x5fa050]
xor eax, edx
inc ecx
dec esi
jne 0x4ea882
pop esi
pop ebx
not eax
ret

Function at 0x4ea8b0
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 + 0x5fa050]
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 + 0x5fa050]
xor eax, edx
mov dword [ecx + 8], eax
ret
Function at 0x4eaae0
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 0x4eab02
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 0x4eab15
mov ebp, 1
test al, 2
je 0x4eab1c
or ebp, 2
test al, 4
je 0x4eab23
or ebp, 4
mov ecx, eax
and ecx, 0x10
je 0x4eab2d
or ebp, 0x10
test al, 0x20
je 0x4eab34
or ebp, 0x20
test ecx, ecx
je 0x4eab40
or ebp, 0x40000000
jmp 0x4eab46
or ebp, 0x80000000
or ebp, 0x1000000
test edx, edx
jne 0x4eab56
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 0x4eac05
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 0x4eac05
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x14]
lea edx, [eax + 0x34]
cmp ecx, edx
jbe 0x4eac05
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 0x4eabff
cmp eax, 0x454e
je 0x4eabff
cmp eax, 0x454c
je 0x4eabff
cmp eax, 0x4550
jne 0x4eac05
or ebp, 0x400000
mov eax, dword [esp + 0x5c]
pop edi
test eax, eax
pop ebx
je 0x4eac11
mov dword [eax], ebp
mov eax, dword [esp + 0x58]
pop ebp
test eax, eax
je 0x4eac20
mov edx, dword [esp + 8]
mov dword [eax], edx
mov esi, dword [esp + 0x58]
test esi, esi
je 0x4eac69
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x20]
push eax
push ecx
call fcn.004eaa40
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.004eaa40
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.004eaa40
mov dword [esi + 0x10], eax
add esp, 0x18
mov dword [esi + 0x14], edx
mov esi, dword [esp + 0x5c]
test esi, esi
je 0x4eaca8
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.004eaa70
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 0x4eae60
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 0x4eaee5
mov eax, dword [ebx + 0x3c]
test eax, eax
je 0x4eae91
cmp dword [ebx + 0x40], ebp
jae 0x4eae91
push eax
call sub.MFC42.DLL_operatordelete
add esp, 4
mov dword [ebx + 0x3c], 0
mov eax, dword [ebx + 0x3c]
test eax, eax
jne 0x4eaeab
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 0x4eaee2
lea edi, [ebx + 0x30]
mov eax, dword [ebx + 0x3c]
mov cl, byte [esi + eax]
push ecx
push edi
call fcn.004ea930
mov edx, dword [ebx + 0x3c]
add esp, 8
mov byte [esi + edx], al
inc esi
cmp esi, ebp
jb 0x4eaec7
mov esi, dword [ebx + 0x3c]
mov edx, dword [ebx + 0x20]
test edx, edx
je 0x4eaf2d
mov eax, dword [ebx + 0x24]
mov edi, dword [ebx + 0x28]
lea ecx, [eax + ebp]
cmp ecx, edi
jb 0x4eaf09
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 0x4eaf4f
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 0x4eb430
Capabilities:
Read file on windows

Disassembly:
push ebx
mov ebx, ecx
push ebp
push esi
mov edx, dword [ebx + 0x84]
test edx, edx
je 0x4eb4a9
mov eax, dword [ebx + 0x8c]
mov ebp, dword [ebx + 0x88]
cmp eax, ebp
jae 0x4eb4fa
mov ecx, dword [esp + 0x14]
sub ebp, eax
cmp ebp, ecx
jbe 0x4eb45f
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.004ea770
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 0x4eb4f3
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 0x4eb4fa
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.004ea770
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