joyce8/EMBER2024-capa huggingface dataset:
Function at 0x47e3ea
Capabilities:
Copy file

Disassembly:
cmp dword [esp + 4], 0
je 0x47e40a
cmp dword [esp + 8], 0
je 0x47e40a
push 0
push dword [esp + 0xc]
push dword [esp + 0xc]
call dword [sym.imp.KERNEL32.dll_CopyFileW]
jmp 0x47e40c
xor eax, eax
ret 8

Function at 0x47e40f
Capabilities:
Timestomp file

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
push edi
xor edi, edi
cmp dword [ebp + 8], edi
je 0x47e4e4
push ebx
push edi
push pe_nt_image_headers32
push 3
push edi
push 3
push 0x40000000
push dword [ebp + 8]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
je 0x47e4e3
push esi
mov esi, dword [ebp + 0x10]
push esi
call fcn.0047ed20
push esi
mov word [ebp - 0x20], ax
call fcn.0047ed46
push esi
mov word [ebp - 0x1e], ax
call fcn.0047ed68
push esi
mov word [ebp - 0x1c], ax
call fcn.0047ed89
push esi
mov word [ebp - 0x1a], ax
call fcn.0047edaa
push esi
mov word [ebp - 0x18], ax
call fcn.0047edcb
push esi
mov word [ebp - 0x16], ax
call fcn.0047edec
mov word [ebp - 0x14], ax
xor eax, eax
mov word [ebp - 0x12], ax
lea eax, [ebp - 0x10]
push eax
lea eax, [ebp - 0x20]
push eax
call dword [sym.imp.KERNEL32.dll_SystemTimeToFileTime]
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x10]
push eax
call dword [sym.imp.KERNEL32.dll_LocalFileTimeToFileTime]
cmp dword [ebp + 0xc], 1
mov eax, edi
mov ecx, edi
pop esi
jne 0x47e4c2
lea eax, [ebp - 8]
jmp 0x47e4d0
cmp dword [ebp + 0xc], 2
jne 0x47e4cd
lea ecx, [ebp - 8]
jmp 0x47e4d0
lea edi, [ebp - 8]
push ecx
push eax
push edi
push ebx
call dword [sym.imp.KERNEL32.dll_SetFileTime]
push ebx
mov edi, eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop ebx
mov eax, edi
pop edi
mov esp, ebp
pop ebp
ret 0xc

Function at 0x47f206
Capabilities:
Open clipboard
Write clipboard data

Disassembly:
push edi
xor edi, edi
push edi
call dword [sym.imp.USER32.dll_OpenClipboard]
test eax, eax
je 0x47f27b
push ebx
push ebp
push esi
mov esi, dword [esp + 0x14]
test esi, esi
jne 0x47f224
mov esi, 0x59c008
push esi
call sub.MSVCRT.dll_wcslen
pop ecx
lea ebp, [eax*2 + 2]
push ebp
push 0x2002
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ebx, eax
test ebx, ebx
je 0x47f272
call dword [sym.imp.USER32.dll_EmptyClipboard]
push ebx
call dword [sym.imp.KERNEL32.dll_GlobalLock]
test eax, eax
je 0x47f272
push ebp
push esi
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
push ebx
call dword [sym.imp.KERNEL32.dll_GlobalUnlock]
push ebx
push 0xd
call dword [sym.imp.USER32.dll_SetClipboardData]
mov edi, eax
call dword [sym.imp.USER32.dll_CloseClipboard]
pop esi
pop ebp
pop ebx
mov eax, edi
pop edi
ret 4
Function at 0x47f281
Capabilities:
Open clipboard
Read clipboard data

Disassembly:
push ebp
mov ebp, esp
push ebx
push esi
push edi
xor esi, esi
push esi
mov ebx, esi
call dword [sym.imp.USER32.dll_OpenClipboard]
test eax, eax
je 0x47f2c2
push 0xd
call dword [sym.imp.USER32.dll_GetClipboardData]
mov edi, eax
test edi, edi
je 0x47f2ba
push edi
call dword [sym.imp.KERNEL32.dll_GlobalLock]
mov esi, eax
test esi, esi
je 0x47f2ba
push esi
call sub.MSVCRT.dll_wcslen
pop ecx
mov ebx, eax
call dword [sym.imp.USER32.dll_CloseClipboard]
jmp 0x47f2c5
mov edi, dword [ebp + 8]
push dword [ebp + 8]
push ebx
call fcn.0048d990
test esi, esi
je 0x47f2ed
lea ecx, [ebx*2 + 2]
push ecx
push esi
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
push edi
call dword [sym.imp.KERNEL32.dll_GlobalUnlock]
jmp 0x47f2f2
xor ecx, ecx
mov word [eax], cx
pop edi
pop esi
pop ebx
pop ebp
ret 4

Function at 0x47f489
Capabilities:
Hash data using sha384

Disassembly:
mov eax, dword [esp + 4]
push 0x40
push 0x5b42c0
and dword [eax + 0x80], 0
and dword [eax + 0x84], 0
mov dword [eax + 0xc8], 0x30
add eax, 0x88
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
ret

Function at 0x47f58f
Capabilities:
Hash data using sha512

Disassembly:
mov eax, dword [esp + 4]
push 0x40
pop ecx
push ecx
and dword [eax + 0x80], 0
and dword [eax + 0x84], 0
mov dword [eax + 0xc8], ecx
add eax, 0x88
push 0x5b4280
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
ret
Function at 0x482c4b
Capabilities:
Hash data using sha256

Disassembly:
mov eax, dword [esp + 4]
push 0x20
pop ecx
push ecx
and dword [eax + 0x40], 0
and dword [eax + 0x44], 0
mov dword [eax + 0x68], ecx
add eax, 0x48
push 0x5b4400
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
ret
Function at 0x48448b
Capabilities:
Encode data using xor

Disassembly:
mov edx, dword [esp + 8]
push ebx
mov ebx, dword [esp + 8]
mov eax, ebx
push ebp
or eax, edx
push esi
mov esi, dword [esp + 0x18]
or eax, esi
push edi
mov edi, dword [esp + 0x20]
or eax, edi
test al, 3
jne 0x4844f2
lea ecx, [esi + edi]
mov eax, ecx
lea edi, [ebx + edx]
sub eax, esi
xor ebx, ebx
add eax, 3
shr eax, 2
cmp ecx, esi
sbb ebp, ebp
not ebp
and ebp, eax
jbe 0x48450a
sub edi, esi
mov ecx, dword [esi]
mov edx, ecx
shr edx, 8
mov eax, ecx
shl eax, 8
xor edx, eax
shl ecx, 8
and edx, 0xff00ff
xor edx, ecx
rol edx, 0x10
inc ebx
mov dword [edi + esi], edx
lea esi, [esi + 4]
cmp ebx, ebp
jb 0x4844c9
jmp 0x48450a
add edi, edx
cmp edx, edi
jae 0x48450a
sub esi, edx
mov al, byte [esi + edx]
mov ecx, edx
xor ecx, 3
inc edx
mov byte [ecx + ebx], al
cmp edx, edi
jb 0x4844fa
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x48450f
Capabilities:
Encode data using xor

Disassembly:
mov edx, dword [esp + 8]
push ebx
mov ebx, dword [esp + 8]
mov eax, ebx
push ebp
or eax, edx
push esi
mov esi, dword [esp + 0x18]
or eax, esi
push edi
mov edi, dword [esp + 0x20]
or eax, edi
test al, 7
jne 0x48456a
lea ecx, [esi + edi]
mov eax, ecx
lea edi, [ebx + edx]
sub eax, esi
xor ebx, ebx
add eax, 7
shr eax, 3
cmp ecx, esi
sbb ebp, ebp
not ebp
and ebp, eax
jbe 0x484582
sub edi, esi
push dword [esi + 4]
push dword [esi]
call fcn.0048444b
inc ebx
mov dword [edi + esi], eax
mov dword [edi + esi + 4], edx
lea esi, [esi + 8]
pop ecx
pop ecx
cmp ebx, ebp
jb 0x48454d
jmp 0x484582
add edi, edx
cmp edx, edi
jae 0x484582
sub esi, edx
mov al, byte [esi + edx]
mov ecx, edx
xor ecx, 7
inc edx
mov byte [ecx + ebx], al
cmp edx, edi
jb 0x484572
pop edi
pop esi
pop ebp
pop ebx
ret

Function at 0x48470b
Capabilities:
Hash data with md5

Disassembly:
mov eax, dword [esp + 4]
and dword [eax + 0x14], 0
and dword [eax + 0x10], 0
mov dword [eax], 0x67452301
mov dword [eax + 4], 0xefcdab89
mov dword [eax + 8], 0x98badcfe
mov dword [eax + 0xc], 0x10325476
ret

Function at 0x48593c
Capabilities:
Set thread local storage value

Disassembly:
push ebx
push esi
mov esi, dword [esp + 0xc]
xor ebx, ebx
push edi
mov edi, ebx
test esi, esi
je 0x485999
push esi
call dword [esi + 0x58]
mov ecx, dword [esi + 0x80]
mov edi, eax
mov dword [esi + 0x94], ecx
mov ecx, dword [esi + 0x84]
mov dword [esi + 0x98], ecx
test edi, edi
jne 0x485999
mov eax, dword [esi + 0x70]
test eax, eax
je 0x485978
push ebx
push esi
call eax
push esi
push ebx
push dword [0x8f9978]
call dword [sym.imp.KERNEL32.dll_HeapFree]
push ebx
push dword [0x974814]
call dword [sym.imp.KERNEL32.dll_TlsSetValue]
mov dword [0x974818], ebx
mov eax, edi
pop edi
pop esi
pop ebx
ret 4

Function at 0x4859a1
Capabilities:
Get thread local storage value

Disassembly:
push dword [0x974814]
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov ecx, dword [eax + 0x90]
add ecx, dword [esp + 8]
push ecx
mov ecx, dword [eax + 0x8c]
add ecx, dword [esp + 8]
push ecx
push eax
call dword [eax + 0x54]
ret 8
Function at 0x4859f2
Capabilities:
Get thread local storage value

Disassembly:
push dword [0x974814]
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
push dword [esp + 0xc]
mov ecx, dword [eax + 0x90]
add ecx, dword [esp + 0xc]
push ecx
mov ecx, dword [eax + 0x8c]
add ecx, dword [esp + 0xc]
push ecx
push eax
call dword [eax + 0x50]
ret 0xc

Function at 0x486549
Capabilities:
Resolve function by parsing pe exports

Disassembly:
sub esp, 0x50
push ebx
mov ebx, dword [esp + 0x5c]
push ebp
xor ebp, ebp
push esi
test ebx, ebx
je 0x48655d
mov esi, ebx
jmp 0x486567
push 0
call dword [sym.imp.GDI32.dll_CreateCompatibleDC]
mov esi, eax
test esi, esi
je 0x486658
lea eax, [esp + 0x18]
push eax
push 0x18
pop eax
push eax
push dword [esp + 0x68]
call dword [sym.imp.GDI32.dll_GetObjectW]
test eax, eax
je 0x48664d
mov ebp, dword [esp + 0x1c]
lea eax, [esp + 0x30]
push edi
mov edi, dword [esp + 0x24]
push 0x2c
push 0
push eax
mov dword [esp + 0x20], ebp
call sub.MSVCRT.dll_memset
add esp, 0xc
mov dword [esp + 0x34], 0x28
xor eax, eax
mov dword [esp + 0x38], ebp
inc eax
mov dword [esp + 0x3c], edi
mov word [esp + 0x40], ax
xor ecx, ecx
push 0x18
pop eax
push ecx
push ecx
mov word [esp + 0x4a], ax
lea eax, [esp + 0x18]
push eax
push ecx
lea eax, [esp + 0x44]
mov dword [esp + 0x54], ecx
push eax
push esi
call dword [sym.imp.GDI32.dll_CreateDIBSection]
mov ebp, eax
mov dword [esp + 0x18], ebp
test ebp, ebp
je 0x48664c
push 0
lea eax, [esp + 0x38]
push eax
push dword [esp + 0x18]
push edi
push 0
push dword [esp + 0x78]
push esi
call dword [sym.imp.GDI32.dll_GetDIBits]
imul edi, dword [esp + 0x14]
test edi, edi
jle 0x48664c
mov ebx, dword [esp + 0x10]
push 3
pop ebp
movzx ecx, byte [ebx + 1]
movzx eax, byte [ebx + 2]
add eax, ecx
movzx ecx, byte [ebx]
add eax, ecx
cdq
idiv ebp
mov byte [ebx], al
mov ecx, dword [esp + 0x10]
mov byte [ecx + 1], al
mov ecx, dword [esp + 0x10]
mov byte [ecx + 2], al
mov ebx, dword [esp + 0x10]
add ebx, ebp
mov dword [esp + 0x10], ebx
dec edi
jne 0x486615
mov ebx, dword [esp + 0x68]
mov ebp, dword [esp + 0x18]
pop edi
test ebx, ebx
jne 0x486658
push esi
call dword [sym.imp.GDI32.dll_DeleteDC]
pop esi
mov eax, ebp
pop ebp
pop ebx
add esp, 0x50
ret 8

Function at 0x488560
Capabilities:
Write file on windows

Disassembly:
push esi
mov esi, dword [esp + 0x10]
push edi
mov edi, dword [esp + 0xc]
mov eax, dword [edi]
test eax, eax
je 0x488592
push 0
lea ecx, [esp + 0x10]
push ecx
push esi
push dword [esp + 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
je 0x48858d
cmp dword [esp + 0xc], esi
je 0x4885a9
pop edi
xor eax, eax
pop esi
ret
mov eax, dword [edi + 4]
add eax, dword [edi + 8]
push esi
push dword [esp + 0x14]
push eax
call sub.MSVCRT.dll_memcpy
add esp, 0xc
add dword [edi + 8], esi
pop edi
mov eax, 1
pop esi
ret
Function at 0x488eff
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
sub esp, 0xc
push ebx
push esi
mov esi, dword [esp + 0x3c]
xor ebx, ebx
cmp esi, 1
je 0x488f2f
cmp esi, 2
je 0x488f2f
cmp esi, 4
je 0x488f2f
cmp esi, 8
je 0x488f2f
cmp esi, 0x18
je 0x488f2f
cmp esi, 0x20
je 0x488f2f
xor eax, eax
jmp 0x4890f9
mov ecx, dword [0x973884]
push ebp
push edi
xor edi, edi
mov dword [esp + 0x10], edi
test ecx, ecx
jle 0x4890f5
mov edx, dword [esp + 0x28]
mov eax, dword [edi*4 + 0x9748a4]
cmp dword [eax], edx
je 0x488f62
inc edi
mov dword [esp + 0x10], edi
cmp edi, ecx
jl 0x488f49
jmp 0x4890f5
cmp dword [esp + 0x38], 0x20
jne 0x4890cc
mov eax, dword [eax + 8]
test eax, eax
je 0x488fa2
cmp esi, 0x20
je 0x488f7e
cmp esi, 0xffffffff
jne 0x488fa2
push esi
push dword [esp + 0x44]
push dword [esp + 0x44]
push dword [esp + 0x40]
push dword [esp + 0x40]
push dword [esp + 0x40]
push dword [esp + 0x3c]
push dword [esp + 0x3c]
call eax
jmp 0x4890f3
mov eax, dword [esp + 0x2c]
inc eax
imul ebp, eax, 3
and ebp, 0xfffffffc
mov eax, ebp
mov dword [esp + 0x14], ebp
imul eax, dword [esp + 0x30]
push eax
push 0
push dword [0x8f9978]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [esp + 0x18], eax
test eax, eax
je 0x4890f5
mov ebx, dword [esp + 0x30]
test ebx, ebx
jle 0x489097
mov edx, dword [esp + 0x24]
mov ecx, eax
mov eax, dword [esp + 0x2c]
mov dword [esp + 0x38], ecx
mov dword [esp + 0x30], edx
mov dword [esp + 0x24], ebx
mov dword [esp + 0x28], ecx
mov esi, edx
test eax, eax
jle 0x489077
mov ebp, ecx
mov edi, eax
mov ecx, 0xff
movzx eax, byte [esi + 2]
sub eax, ecx
movzx ecx, byte [esi + 3]
imul eax, ecx
mov ecx, 0xff
add eax, 0xfe01
cdq
idiv ecx
mov byte [ebp + 2], al
movzx eax, byte [esi + 1]
sub eax, ecx
movzx ecx, byte [esi + 3]
imul eax, ecx
mov ecx, 0xff
add eax, 0xfe01
cdq
idiv ecx
mov byte [ebp + 1], al
movzx eax, byte [esi]
lea esi, [esi + 4]
sub eax, ecx
movzx ecx, byte [esi - 1]
imul eax, ecx
mov ecx, 0xff
add eax, 0xfe01
cdq
idiv ecx
mov byte [ebp], al
lea ebp, [ebp + 3]
dec edi
jne 0x489008
mov ebp, dword [esp + 0x14]
mov eax, dword [esp + 0x2c]
mov ecx, dword [esp + 0x38]
mov edx, dword [esp + 0x30]
add edx, dword [esp + 0x34]
add ecx, ebp
dec dword [esp + 0x24]
mov dword [esp + 0x30], edx
mov dword [esp + 0x38], ecx
jne 0x488ff5
mov esi, dword [esp + 0x44]
mov edi, dword [esp + 0x10]
mov eax, dword [edi*4 + 0x9748a4]
push esi
push dword [esp + 0x44]
mov esi, dword [esp + 0x20]
push dword [esp + 0x44]
push ebp
push ebx
push dword [esp + 0x40]
push esi
push dword [esp + 0x3c]
call dword [eax + 4]
push esi
push 0
push dword [0x8f9978]
mov ebx, eax
call dword [sym.imp.KERNEL32.dll_HeapFree]
jmp 0x4890f5
cmp dword [esp + 0x38], 0x18
jne 0x4890f5
push esi
push dword [esp + 0x44]
push dword [esp + 0x44]
push dword [esp + 0x40]
push dword [esp + 0x40]
push dword [esp + 0x40]
push dword [esp + 0x3c]
push dword [esp + 0x3c]
call dword [eax + 4]
mov ebx, eax
pop edi
mov eax, ebx
pop ebp
pop esi
pop ebx
add esp, 0xc
ret 0x28
Function at 0x48caa6
Capabilities:
Get thread local storage value
Set thread local storage value

Disassembly:
push edi
push dword [0x973ad0]
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov edi, eax
test edi, edi
jne 0x48cb07
push esi
push dword [0x973acc]
push 8
push dword [0x8f9978]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov edi, eax
push edi
push dword [0x973ad0]
call dword [sym.imp.KERNEL32.dll_TlsSetValue]
mov esi, dword [0x973ac8]
jmp 0x48caf7
mov ecx, dword [esi + 0xc]
test ecx, ecx
je 0x48caf5
mov eax, dword [esi + 8]
add eax, edi
push eax
call ecx
pop ecx
mov esi, dword [esi]
test esi, esi
jne 0x48cae5
push edi
push 0x48ca44
call fcn.0058e081
pop esi
mov eax, dword [esp + 8]
add eax, edi
pop edi
ret 4

Function at 0x48cb11
Capabilities:
Allocate thread local storage
Get thread local storage value
Set thread local storage value

Disassembly:
push ebx
push ebp
push esi
mov esi, dword [esp + 0x10]
mov ecx, esi
push edi
and ecx, 3
je 0x48cb27
push 4
pop eax
sub eax, ecx
add esi, eax
mov eax, dword [0x973acc]
mov ebx, dword [sym.imp.KERNEL32.dll_TlsSetValue]
test eax, eax
jne 0x48cb5e
call dword [sym.imp.KERNEL32.dll_TlsAlloc]
push esi
push 8
push dword [0x8f9978]
mov dword [0x973ad0], eax
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
push eax
push dword [0x973ad0]
call ebx
mov eax, dword [0x973acc]
mov edi, eax
add eax, esi
push eax
push dword [0x973ad0]
mov dword [0x973acc], eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
push eax
push 8
push dword [0x8f9978]
call dword [sym.imp.KERNEL32.dll_HeapReAlloc]
mov ebp, eax
push ebp
push dword [0x973ad0]
call ebx
mov esi, dword [esp + 0x18]
mov ebx, dword [esp + 0x1c]
test esi, esi
jne 0x48cb9e
test ebx, ebx
je 0x48cbbf
push 0x14
push 0x973ac8
call fcn.0048d455
pop ecx
pop ecx
mov dword [eax], edi
mov dword [eax + 4], esi
mov dword [eax + 8], ebx
test esi, esi
je 0x48cbbf
lea ecx, [edi + ebp]
push ecx
call esi
pop ecx
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
ret 0xc

Function at 0x48d5d0
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 8], eax
mov ecx, dword [ebp - 8]
mov edx, dword [ecx + 8]
sub edx, dword [ebp + 0xc]
mov dword [ebp - 4], edx
mov eax, dword [ebp + 8]
cmp dword [eax], 0
jne 0x48d616
mov ecx, dword [ebp - 4]
add ecx, 0xa
push ecx
push 0
mov edx, dword [0x974928]
push edx
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov ecx, dword [ebp + 8]
mov dword [ecx], eax
jmp 0x48d637
mov edx, dword [ebp - 4]
add edx, 0xa
push edx
mov eax, dword [ebp + 8]
mov ecx, dword [eax]
push ecx
push 0
mov edx, dword [0x974928]
push edx
call dword [sym.imp.KERNEL32.dll_HeapReAlloc]
mov ecx, dword [ebp + 8]
mov dword [ecx], eax
mov edx, dword [ebp - 4]
shr edx, 1
push edx
mov eax, dword [ebp - 8]
mov ecx, dword [eax]
add ecx, dword [ebp + 0xc]
push ecx
mov edx, dword [ebp + 8]
mov eax, dword [edx]
push eax
call fcn.0048df10
mov ecx, dword [ebp - 8]
mov edx, dword [ebp + 0xc]
mov dword [ecx + 8], edx
mov esp, ebp
pop ebp
ret 8
Function at 0x48d660
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
mov edx, dword [ecx + 8]
add edx, 2
mov eax, dword [ebp - 4]
mov dword [eax + 8], edx
mov esp, ebp
pop ebp
ret

Function at 0x48d730
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
mov eax, dword [ecx]
mov edx, dword [ebp - 4]
add eax, dword [edx + 8]
mov esp, ebp
pop ebp
ret

Function at 0x48d990
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
cmp dword [ebp + 0xc], 0xffffffff
jne 0x48d9b4
mov ecx, dword [ebp - 4]
mov edx, dword [ecx + 8]
mov dword [ebp + 0xc], edx
mov eax, dword [ebp - 4]
mov ecx, dword [eax + 8]
mov edx, dword [ebp + 8]
lea eax, [ecx + edx*2]
mov dword [ebp - 8], eax
mov ecx, dword [ebp - 4]
mov edx, dword [ecx + 4]
sub edx, 4
cmp dword [ebp - 8], edx
jl 0x48da04
mov eax, dword [ebp - 8]
add eax, 0x4000
mov ecx, dword [ebp - 4]
mov dword [ecx + 4], eax
mov edx, dword [ebp - 4]
mov eax, dword [edx + 4]
add eax, 0xa
push eax
mov ecx, dword [ebp - 4]
mov edx, dword [ecx]
push edx
push 0
mov eax, dword [0x974928]
push eax
call dword [sym.imp.KERNEL32.dll_HeapReAlloc]
mov ecx, dword [ebp - 4]
mov dword [ecx], eax
jmp 0x48da4c
mov edx, dword [ebp - 4]
cmp dword [edx + 4], 0x100000
jle 0x48da4c
cmp dword [ebp - 8], 0x100000
jge 0x48da20
mov dword [ebp - 8], 0x100000
mov eax, dword [ebp - 4]
mov ecx, dword [ebp - 8]
mov dword [eax + 4], ecx
mov edx, dword [ebp - 4]
mov eax, dword [edx + 4]
add eax, 0xa
push eax
mov ecx, dword [ebp - 4]
mov edx, dword [ecx]
push edx
push 0
mov eax, dword [0x974928]
push eax
call dword [sym.imp.KERNEL32.dll_HeapReAlloc]
mov ecx, dword [ebp - 4]
mov dword [ecx], eax
mov edx, dword [ebp - 4]
mov eax, dword [edx]
add eax, dword [ebp + 0xc]
mov dword [ebp - 0xc], eax
mov ecx, dword [ebp + 8]
mov edx, dword [ebp + 0xc]
lea eax, [edx + ecx*2]
mov ecx, dword [ebp - 4]
mov dword [ecx + 8], eax
mov eax, dword [ebp - 0xc]
mov esp, ebp
pop ebp
ret 8

Function at 0x48da70
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp + 8]
shl ecx, 1
mov edx, dword [ebp - 4]
mov eax, dword [edx + 8]
sub eax, ecx
mov ecx, dword [ebp - 4]
mov dword [ecx + 8], eax
mov esp, ebp
pop ebp
ret 4
Function at 0x48de90
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
mov edx, dword [ebp + 8]
cmp edx, dword [ecx]
jb 0x48dece
mov eax, dword [ebp - 4]
mov ecx, dword [eax]
mov edx, dword [ebp - 4]
add ecx, dword [edx + 8]
cmp dword [ebp + 8], ecx
ja 0x48dece
mov eax, dword [ebp - 4]
mov ecx, dword [ebp + 8]
sub ecx, dword [eax]
add ecx, 1
mov eax, ecx
jmp 0x48ded0
xor eax, eax
mov esp, ebp
pop ebp
ret 4

Function at 0x48df60
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
mov eax, dword [ecx]
add eax, dword [ebp + 8]
mov esp, ebp
pop ebp
ret 4

Function at 0x48e2b0
Capabilities:
Get thread local storage value

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov eax, dword [0x8f42e4]
push eax
call dword [sym.imp.KERNEL32.dll_TlsGetValue]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
mov edx, dword [ebp + 8]
mov dword [ecx + 8], edx
mov eax, dword [ebp - 4]
mov ecx, dword [eax]
mov edx, dword [ebp - 4]
add ecx, dword [edx + 8]
mov dword [ebp - 8], ecx
mov eax, dword [ebp - 8]
mov esp, ebp
pop ebp
ret 4

Function at 0x48e330
Capabilities:
Query environment variable

Disassembly:
push str.EXPAT_ENTROPY_DEBUG
call dword [sym.imp.MSVCRT.dll_getenv]
add esp, 4
test eax, eax
je 0x48e394
mov ecx, 0x5b4dd8
mov dl, byte [eax]
cmp dl, byte [ecx]
jne 0x48e367
test dl, dl
je 0x48e363
mov dl, byte [eax + 1]
cmp dl, byte [ecx + 1]
jne 0x48e367
add eax, 2
add ecx, 2
test dl, dl
jne 0x48e347
xor eax, eax
jmp 0x48e36c
sbb eax, eax
or eax, 1
test eax, eax
jne 0x48e394
push 4
push dword [esp + 0xc]
push 8
push dword [esp + 0x10]
push str.Entropy:__s_____0x_0lx___lu_bytes__n
call dword [sym.imp.MSVCRT.dll___p__iob]
add eax, 0x40
push eax
call dword [sym.imp.MSVCRT.dll_fprintf]
add esp, 0x18
mov eax, dword [esp + 8]
ret

Function at 0x492700
Capabilities:
Generate random numbers via rtlgenrandom

Disassembly:
sub esp, 0xc
push esi
xor esi, esi
jmp 0x492710
push 4
lea eax, [esp + 8]
mov dword [esp + 8], 0
push eax
call sub.ADVAPI32.dll_SystemFunction036
test al, al
je 0x492761
mov edx, dword [esp + 4]
xor ecx, ecx
mov edi, edi
cmp esi, 4
jae 0x49274b
mov eax, edx
shr eax, cl
add ecx, 8
mov byte [esp + esi + 8], al
inc esi
cmp ecx, 0x20
jb 0x492730
cmp esi, 4
jb 0x492710
push dword [esp + 8]
push str.rand_s
call fcn.0048e330
add esp, 8
pop esi
add esp, 0xc
ret
lea eax, [esp + 8]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemTimeAsFileTime]
mov esi, dword [esp + 8]
xor esi, dword [esp + 0xc]
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
xor eax, esi
imul eax, eax, 0x7fffffff
push eax
push str.fallback_4_
call fcn.0048e330
add esp, 8
pop esi
add esp, 0xc
ret
Function at 0x4960d0
Capabilities:
Encode data using xor

Disassembly:
sub esp, 8
cmp dword [esp + 0x10], 0
jle 0x4961d2
mov eax, dword [esp + 0xc]
push ebx
push ebp
push esi
mov ecx, dword [eax]
mov edx, dword [eax + 4]
push edi
jmp 0x4960f0
mov edi, dword [eax + 8]
add ecx, edi
mov esi, dword [eax + 0xc]
adc edx, esi
mov dword [eax], ecx
mov dword [eax + 4], edx
xor ecx, ecx
mov edx, esi
shld esi, edi, 0xd
shr edx, 0x13
or ecx, esi
shl edi, 0xd
mov esi, dword [eax]
or edx, edi
mov edi, dword [eax + 0x18]
mov dword [eax + 8], edx
xor dword [eax + 8], esi
mov edx, dword [eax + 4]
mov dword [eax + 0xc], ecx
xor ecx, ecx
xor dword [eax + 0xc], edx
or ecx, esi
add dword [eax + 0x10], edi
mov esi, dword [eax + 0x1c]
adc dword [eax + 0x14], esi
mov ebp, dword [eax + 0x10]
mov ebx, dword [eax + 0x14]
mov dword [eax], edx
mov edx, esi
shld esi, edi, 0x10
mov dword [eax + 4], ecx
xor ecx, ecx
or ecx, esi
shr edx, 0x10
shl edi, 0x10
or edx, edi
mov dword [eax + 0x1c], ecx
xor dword [eax + 0x1c], ebx
mov esi, dword [eax + 0x1c]
mov dword [eax + 0x18], edx
mov edx, esi
xor dword [eax + 0x18], ebp
mov edi, dword [eax + 0x18]
add dword [eax], edi
adc dword [eax + 4], esi
xor ecx, ecx
shld esi, edi, 0x15
shr edx, 0xb
or ecx, esi
shl edi, 0x15
mov esi, dword [eax + 0xc]
or edx, edi
mov edi, dword [eax + 8]
mov dword [eax + 0x18], edx
mov edx, dword [eax + 4]
mov dword [eax + 0x1c], ecx
xor dword [eax + 0x1c], edx
mov edx, esi
mov ecx, dword [eax]
xor dword [eax + 0x18], ecx
add ebp, edi
adc ebx, esi
xor ecx, ecx
shld esi, edi, 0x11
shr edx, 0xf
or ecx, esi
shl edi, 0x11
or edx, edi
mov dword [eax + 0xc], ecx
xor ecx, ecx
mov dword [eax + 8], edx
mov esi, ebp
mov edx, ebx
xor dword [eax + 0xc], edx
or ecx, esi
xor dword [eax + 8], esi
dec dword [esp + 0x20]
mov dword [eax + 0x10], edx
mov edx, dword [eax + 4]
mov dword [eax + 0x14], ecx
mov ecx, dword [eax]
jne 0x4960f0
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret