joyce8/EMBER2024-capa huggingface dataset:
Function at 0x54b950
Capabilities:
Delete registry value
Query or enumerate registry value

Disassembly:
sub esp, 0x540
push ebx
lea eax, [esp + 0x33c]
push 0x104
xor bl, bl
push eax
push 0
mov byte [esp + 0x13], bl
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
push 0
push 0
lea ecx, [esp + 0x13c]
push 0x104
lea edx, [esp + 0x348]
push ecx
push edx
call fcn.005608ec
add esp, 4
inc eax
push eax
lea eax, [esp + 0x350]
push eax
push 0
push 0
call dword [sym.imp.KERNEL32.dll_WideCharToMultiByte]
lea ecx, [esp + 0x134]
push 0x5c
push ecx
call fcn.00561f7b
add esp, 8
test eax, eax
je 0x54b9bf
mov byte [eax], bl
lea edx, [esp + 8]
push edx
push 3
push 0
push 0x5e6450
call fcn.0054d6e0
add esp, 4
push eax
push getpeername
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x54bb34
push ebp
mov edx, dword [esp + 0xc]
push eax
push eax
mov ebx, dword [sym.imp.ADVAPI32.dll_RegEnumValueA]
push eax
push eax
lea eax, [esp + 0x20]
lea ecx, [esp + 0x44]
push eax
push ecx
push 0
push edx
mov dword [esp + 0x30], 0x104
mov ebp, 1
call ebx
cmp eax, 0x103
je 0x54bb1c
push esi
push edi
test eax, eax
jne 0x54baea
lea edi, [esp + 0x3c]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
lea edx, [esp + 0x244]
mov eax, ecx
mov esi, edi
mov edi, edx
push 0x5c
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea ecx, [esp + 0x248]
push ecx
call fcn.00561f7b
add esp, 8
test eax, eax
je 0x54ba68
mov byte [eax], 0
lea edx, [esp + 0x140]
lea eax, [esp + 0x244]
push edx
push eax
call fcn.0055fabe
add esp, 8
test eax, eax
jne 0x54baea
lea ecx, [esp + 0x18]
lea edx, [esp + 0x1c]
push ecx
mov ecx, dword [esp + 0x18]
push edx
push eax
push eax
lea eax, [esp + 0x4c]
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x54baea
mov eax, dword [0x887f94]
test eax, eax
je 0x54bad1
lea edx, [esp + 0x1c]
push edx
push 0x5e6438
call fcn.0054d6e0
add esp, 4
push eax
mov eax, dword [0x887f94]
add eax, 0x20
push eax
call fcn.005488b0
add esp, 0xc
mov edx, dword [esp + 0x14]
lea ecx, [esp + 0x3c]
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegDeleteValueA]
test eax, eax
jne 0x54baea
mov byte [esp + 0x13], 1
push 0
push 0
push 0
lea ecx, [esp + 0x24]
push 0
lea edx, [esp + 0x4c]
mov eax, ebp
push ecx
push edx
push eax
mov eax, dword [esp + 0x30]
mov dword [esp + 0x34], 0x104
push eax
inc ebp
call ebx
cmp eax, 0x103
jne 0x54ba21
pop edi
pop esi
mov ecx, dword [esp + 0xc]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov al, byte [esp + 0xb]
pop ebp
pop ebx
add esp, 0x540
ret
mov al, bl
pop ebx
add esp, 0x540
ret
Function at 0x54bb40
Capabilities:
Set registry value

Disassembly:
push ecx
lea eax, [esp]
push ebx
push eax
push 0xf003f
push 0
push 0x5e64b0
xor bl, bl
call fcn.0054d6e0
add esp, 4
push eax
push reloc.WS2_32.dll_bind
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x54bba1
lea ecx, [esp + 0xc]
push 4
push ecx
push 4
push eax
push 0x5e6498
call fcn.0054d6e0
mov edx, dword [esp + 0x18]
add esp, 4
push eax
push edx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
test eax, eax
jne 0x54bb96
mov bl, 1
mov eax, dword [esp + 4]
push eax
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov al, bl
pop ebx
pop ecx
ret
Function at 0x54bc30
Capabilities:
Copy file
Get common file path
Parse pe header
Read file on windows
Write file on windows

Disassembly:
sub esp, 0x240
push ebx
mov ebx, ecx
push esi
push edi
cmp dword [ebx], 0
je 0x54bc45
call fcn.0054bdf0
push ebp
lea eax, [esp + 0x14c]
push 0x104
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
mov edi, 0x5e578c
or ecx, 0xffffffff
xor eax, eax
lea edx, [esp + 0x14c]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov ebp, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebp
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebp
lea edx, [esp + 0x14c]
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov edi, dword [esp + 0x254]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov ebp, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebp
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebp
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea esi, [ebx + 4]
push esi
push 0x104
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
push esi
push 0
push 0x5e6504
push esi
call dword [sym.imp.KERNEL32.dll_GetTempFileNameA]
push 0
lea eax, [esp + 0x150]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_CopyFileA]
push 0
push 0x80
push 3
push 0
push 3
push 0xc0000000
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
cmp edi, 0xffffffff
je 0x54bda3
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x1c]
push 0x40
push edx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp word [esp + 0x14], 0x5a4d
jne 0x54bd9c
mov eax, dword [esp + 0x50]
mov ebp, dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
push 0
push eax
push edi
call ebp
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x5c]
push 0xf8
push edx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp dword [esp + 0x54], 0x4550
jne 0x54bd9c
cmp dword [esp + 0x88], 0x80000000
jbe 0x54bd9c
mov eax, dword [esp + 0x50]
push 0
push 0
push eax
push edi
mov dword [esp + 0x98], 0x10000000
call ebp
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x5c]
push 0xf8
push edx
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edi, dword [sym.imp.KERNEL32.dll_LoadLibraryExA]
push 8
push 0
push esi
call edi
test eax, eax
mov dword [ebx], eax
pop ebp
je 0x54bdc8
pop edi
pop esi
mov eax, 1
pop ebx
add esp, 0x240
ret 4
mov eax, dword [esp + 0x250]
push 8
push 0
push eax
mov byte [esi], 0
call edi
xor ecx, ecx
pop edi
test eax, eax
setne cl
mov dword [ebx], eax
pop esi
mov eax, ecx
pop ebx
add esp, 0x240
ret 4
Function at 0x54cd80
Capabilities:
Write file on windows

Disassembly:
sub esp, 0x148
push ebx
push ebp
mov ebp, ecx
mov ebx, dword [ebp + 4]
cmp ebx, 0xffffffff
jne 0x54cd9f
pop ebp
xor al, al
pop ebx
add esp, 0x148
ret 0xc
mov edx, dword [esp + 0x158]
mov ecx, dword [esp + 0x154]
push esi
mov esi, dword [esp + 0x160]
push edi
mov edi, dword [ebp + 0xc]
cmp edx, 0x613
mov dword [esp + 0x14], ecx
mov dword [esp + 0x1c], edx
mov dword [esp + 0x18], edi
mov dword [esp + 0x20], esi
jne 0x54ce3a
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc eax
cmp eax, 0x104
mov dword [esp + 0x20], eax
jbe 0x54cdf4
mov eax, 0x104
mov byte [esi + 0x103], 0
mov dword [esp + 0x20], eax
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov dword [esp + 0x44], ecx
mov ecx, dword [esp + 0x1c]
mov dword [esp + 0x4c], ecx
mov ecx, eax
mov dword [esp + 0x48], edx
mov edx, ecx
lea edi, [esp + 0x54]
mov dword [esp + 0x50], eax
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push 0
and ecx, 3
add eax, 0x10
rep movsb byte es:[edi], byte [esi]
lea ecx, [esp + 0x14]
lea edx, [esp + 0x48]
push ecx
push eax
mov eax, dword [ebp + 4]
push edx
push eax
jmp 0x54ce95
cmp edx, 0x619
jne 0x54ce86
mov eax, 0x10
mov dword [esp + 0x2c], edx
mov edx, dword [esi + 4]
mov dword [esp + 0x20], eax
mov dword [esp + 0x24], ecx
mov ecx, dword [esi]
mov dword [esp + 0x30], eax
mov eax, dword [esi + 8]
mov dword [esp + 0x38], edx
lea edx, [esp + 0x10]
mov dword [esp + 0x34], ecx
mov ecx, dword [esi + 0xc]
mov dword [esp + 0x3c], eax
push 0
push edx
lea eax, [esp + 0x2c]
push 0x20
mov dword [esp + 0x34], edi
mov dword [esp + 0x4c], ecx
push eax
jmp 0x54ce94
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x1c]
push 0x10
push edx
push ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
pop edi
pop esi
test eax, eax
jne 0x54cec5
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0x6d
je 0x54ceb8
cmp eax, 0xe8
je 0x54ceb8
cmp eax, 6
jne 0x54cec5
pop ebp
xor al, al
pop ebx
add esp, 0x148
ret 0xc
pop ebp
mov al, 1
pop ebx
add esp, 0x148
ret 0xc
Function at 0x54cfd0
Capabilities:
Create pipe
Create two anonymous pipes

Disassembly:
sub esp, 0x10
push ebx
push ebp
push esi
mov esi, ecx
mov ecx, dword [esi + 4]
push edi
lea eax, [esi + 4]
cmp ecx, 0xffffffff
mov dword [esp + 0x10], eax
je 0x54cff2
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ebp, dword [sym.imp.KERNEL32.dll_GetStdHandle]
push 0xfffffffffffffff5
mov dword [esp + 0x18], 0xc
mov dword [esp + 0x20], 1
mov dword [esp + 0x1c], 0
call ebp
mov dword [esi + 0x134], eax
lea eax, [esp + 0x14]
lea ebx, [esi + 0x144]
push 0
lea edi, [esi + 0x140]
push eax
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
jne 0x54d043
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [ebx]
push ecx
push 0xfffffffffffffff5
call dword [sym.imp.KERNEL32.dll_SetStdHandle]
test eax, eax
jne 0x54d05c
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ebx, dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push 2
push 0
lea edx, [esi + 8]
push 0
push edx
call ebx
push eax
mov eax, dword [edi]
push eax
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_DuplicateHandle]
test eax, eax
jne 0x54d089
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [edi]
push ecx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push 0xfffffffffffffff6
call ebp
lea edx, [esp + 0x14]
mov dword [esi + 0x130], eax
lea edi, [esi + 0x13c]
push 0
add esi, 0x138
push edx
push edi
push esi
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
jne 0x54d0c5
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov eax, dword [esi]
push eax
push 0xfffffffffffffff6
call dword [sym.imp.KERNEL32.dll_SetStdHandle]
test eax, eax
jne 0x54d0de
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [esp + 0x10]
push 2
push 0
push 0
push ecx
call ebx
mov edx, dword [edi]
push eax
push edx
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_DuplicateHandle]
test eax, eax
jne 0x54d106
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov eax, dword [edi]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop edi
pop esi
pop ebp
mov al, 1
pop ebx
add esp, 0x10
ret

Function at 0x54d120
Capabilities:
Create thread

Disassembly:
push ecx
push esi
mov esi, ecx
push edi
cmp dword [esi + 4], 0xffffffff
jne 0x54d131
pop edi
xor eax, eax
pop esi
pop ecx
ret
mov eax, dword [esi + 0x130]
mov edi, dword [sym.imp.KERNEL32.dll_SetStdHandle]
push eax
push 0xfffffffffffffff6
call edi
test eax, eax
jne 0x54d14a
pop edi
pop esi
pop ecx
ret
mov ecx, dword [esi + 0x134]
push ecx
push 0xfffffffffffffff5
call edi
test eax, eax
jne 0x54d15d
pop edi
pop esi
pop ecx
ret
push 0
push 0
push 1
push 0
call dword [sym.imp.KERNEL32.dll_CreateEventA]
test eax, eax
mov dword [esi + 0x10], eax
jne 0x54d176
pop edi
pop esi
pop ecx
ret
lea edx, [esp + 8]
push edx
push 0
push esi
push 0x54d220
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov ecx, dword [esp + 8]
mov dword [esi], eax
neg eax
sbb eax, eax
pop edi
and eax, ecx
pop esi
pop ecx
ret
Function at 0x54d1a0
Capabilities:
Terminate thread

Disassembly:
push esi
mov esi, ecx
cmp dword [esi + 4], 0xffffffff
jne 0x54d1ad
xor al, al
pop esi
ret
mov eax, dword [esi + 0x10]
test eax, eax
je 0x54d1bb
push eax
call dword [sym.imp.KERNEL32.dll_SetEvent]
mov eax, dword [esi]
push edi
mov edi, dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
je 0x54d1ee
push 0x64
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
cmp eax, 0x102
jne 0x54d1e3
mov eax, dword [esi]
push 0
push eax
call dword [sym.imp.KERNEL32.dll_TerminateThread]
mov ecx, dword [esi]
push ecx
call edi
mov dword [esi], 0
mov eax, dword [esi + 4]
cmp eax, 0xffffffff
je 0x54d200
push eax
call edi
mov dword [esi + 4], 0xffffffff
mov eax, dword [esi + 8]
cmp eax, 0xffffffff
je 0x54d212
push eax
call edi
mov dword [esi + 8], 0xffffffff
pop edi
mov al, 1
pop esi
ret

Function at 0x54d5d0
Capabilities:
Encode data using xor

Disassembly:
push edi
mov edi, dword [esp + 8]
push edi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
test eax, eax
je 0x54d667
mov ecx, edi
push ebx
and ecx, 0xff
push esi
mov byte [0x888061], cl
mov byte [0x888060], 1
lea edx, [ecx + ecx*2 + 0x65]
lea ecx, [ecx + ecx*2 + 1]
mov dword [esp + 0x10], edx
mov esi, 4
lea ecx, [ecx + ecx*2]
lea edx, [ecx + 0x65]
inc ecx
test eax, eax
jle 0x54d63c
push ebp
sub edi, 0x888064
mov ebp, eax
mov bl, byte [edi + esi + 0x888060]
lea ecx, [ecx + ecx*2]
mov al, cl
add al, 0x65
xor bl, al
mov byte [esi + 0x888060], bl
inc esi
inc ecx
dec ebp
jne 0x54d620
pop ebp
mov bl, byte [esp + 0x10]
lea ecx, [esi - 4]
mov eax, ecx
mov byte [esi + 0x888060], 0
sar eax, 8
xor al, bl
xor dl, cl
pop esi
mov byte [0x888062], al
pop ebx
mov byte [0x888063], dl
mov eax, 0x888060
pop edi
ret
mov eax, 0x888060
pop edi
ret

Function at 0x54d670
Capabilities:
Encode data using xor

Disassembly:
mov eax, dword [esp + 4]
test eax, eax
jne 0x54d679
ret
cmp byte [eax], 1
jne 0x54d6d4
movsx ecx, byte [eax + 1]
push ebx
mov bl, byte [eax + 2]
lea ecx, [ecx + ecx*2]
push esi
mov dl, cl
push edi
add dl, 0x65
lea ecx, [ecx + ecx*2 + 3]
xor bl, dl
mov dl, cl
mov byte [eax + 2], bl
mov bl, byte [eax + 3]
add dl, 0x65
xor esi, esi
xor bl, dl
xor edx, edx
mov dh, byte [eax + 2]
inc ecx
mov dl, bl
mov byte [eax + 3], bl
mov edi, edx
test edi, edi
jle 0x54d6cd
mov bl, byte [esi + eax + 4]
lea ecx, [ecx + ecx*2]
mov dl, cl
add dl, 0x65
xor bl, dl
inc ecx
mov byte [esi + eax], bl
inc esi
cmp esi, edi
jl 0x54d6b6
mov byte [edi + eax], 0
pop edi
pop esi
pop ebx
ret
Function at 0x54d6e0
Capabilities:
Encode data using xor

Disassembly:
mov al, byte [0x888058]
sub esp, 0x40c
test al, 1
push ebx
push edi
jne 0x54d714
mov bl, al
push 0x887fd8
or bl, 1
mov byte [0x888058], bl
call dword [sym.imp.KERNEL32.dll_InitializeCriticalSection]
push 0x54d8b0
call fcn.0055e9d1
add esp, 4
mov edi, dword [esp + 0x418]
test edi, edi
jne 0x54d72a
pop edi
xor eax, eax
pop ebx
add esp, 0x40c
ret
push ebp
push esi
push 0x887fd8
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
cmp byte [edi], 1
jne 0x54d78c
movsx eax, byte [edi + 1]
mov dl, byte [edi + 2]
mov bl, byte [edi + 3]
lea eax, [eax + eax*2]
xor esi, esi
mov cl, al
add cl, 0x65
lea eax, [eax + eax*2 + 3]
xor dl, cl
xor ecx, ecx
mov byte [edi + 2], dl
mov ch, byte [edi + 2]
mov dl, al
add dl, 0x65
xor bl, dl
inc eax
mov cl, bl
mov byte [edi + 3], bl
mov ebp, ecx
test ebp, ebp
jle 0x54d788
mov cl, byte [esi + edi + 4]
lea eax, [eax + eax*2]
mov dl, al
add dl, 0x65
xor cl, dl
inc eax
mov byte [esi + edi], cl
inc esi
cmp esi, ebp
jl 0x54d771
mov byte [edi + ebp], 0
xor ebx, ebx
call dword [sym.imp.KERNEL32.dll_GetCurrentThreadId]
mov edx, 1
mov ecx, 0x887ff4
cmp dword [ecx], eax
je 0x54d7b0
add ecx, 4
inc edx
cmp ecx, 0x888018
jl 0x54d79e
jmp 0x54d7b6
test edx, edx
mov ebx, edx
jne 0x54d7d1
mov ecx, dword [0x888460]
cmp ecx, 9
jae 0x54d7d1
inc ecx
mov dword [0x888460], ecx
mov ebx, ecx
mov dword [ecx*4 + 0x887ff0], eax
mov esi, dword [ebx*4 + 0x888018]
mov dword [ebx*4 + 0x888018], edi
test esi, esi
je 0x54d88b
cmp esi, edi
je 0x54d88b
cmp byte [edi], 1
je 0x54d88b
cmp byte [esi], 1
je 0x54d88b
lea edx, [esp + 0x1c]
push esi
push edx
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
lea eax, [esp + 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_lstrlenA]
test eax, eax
mov dword [esp + 0x18], eax
je 0x54d88b
lea ecx, [esp + 0x1c]
mov byte [esi], 1
and ecx, 0xff
mov ebp, 4
mov byte [esi + 1], cl
lea edx, [ecx + ecx*2 + 0x65]
lea ecx, [ecx + ecx*2 + 1]
mov dword [esp + 0x14], edx
xor edx, edx
lea ecx, [ecx + ecx*2]
lea ebx, [ecx + 0x65]
inc ecx
test eax, eax
mov dword [esp + 0x10], ebx
jle 0x54d871
mov bl, byte [esp + edx + 0x1c]
lea ecx, [ecx + ecx*2]
mov al, cl
add al, 0x65
xor bl, al
mov eax, dword [esp + 0x18]
mov byte [esi + ebp], bl
inc ebp
inc ecx
inc edx
cmp edx, eax
jl 0x54d852
mov ebx, dword [esp + 0x10]
mov dl, byte [esp + 0x14]
lea eax, [ebp - 4]
mov ecx, eax
mov byte [esi + ebp], 0
sar ecx, 8
xor cl, dl
xor bl, al
mov byte [esi + 2], cl
mov byte [esi + 3], bl
push 0x887fd8
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
pop esi
mov eax, edi
pop ebp
pop edi
pop ebx
add esp, 0x40c
ret

Function at 0x54db40
Capabilities:
Hash data with crc32

Disassembly:
push ebx
push esi
mov eax, ecx
push edi
xor esi, esi
mov edi, eax
mov edx, esi
mov ebx, 8
test dl, 1
je 0x54db5f
shr edx, 1
xor edx, 0xedb88320
jmp 0x54db61
shr edx, 1
dec ebx
jne 0x54db50
mov dword [edi], edx
inc esi
add edi, 4
cmp esi, 0x100
jl 0x54db49
pop edi
pop esi
pop ebx
ret
Function at 0x54db90
Capabilities:
Encode data using xor
Read file on windows

Disassembly:
mov eax, 0x1004
call fcn.00561be0
mov eax, dword [esp + 0x1008]
push ebp
push esi
mov esi, dword [esp + 0x1014]
test eax, eax
push edi
mov ebp, ecx
mov dword [esi], 0xffffffff
je 0x54dc95
cmp byte [eax], 0
je 0x54dc95
push 0
push 0x80
push 3
push 0
push 3
push closesocket
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
cmp edi, 0xffffffff
jne 0x54dbfc
pop edi
mov dword [ebp + 0x400], 2
pop esi
xor al, al
pop ebp
add esp, 0x1004
ret 8
push ebx
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x1c]
push 0x1000
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x54dc6f
mov ecx, dword [esp + 0x10]
test ecx, ecx
je 0x54dc6b
lea ecx, [esp + ecx + 0x14]
lea edx, [esp + 0x14]
cmp edx, ecx
lea eax, [esp + 0x14]
jae 0x54dc4d
xor edx, edx
xor ebx, ebx
mov dl, byte [esi]
mov bl, byte [eax]
xor edx, ebx
mov ebx, dword [esi]
shr ebx, 8
mov edx, dword [ebp + edx*4]
xor edx, ebx
inc eax
cmp eax, ecx
mov dword [esi], edx
jb 0x54dc31
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x1c]
push 0x1000
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x54dc19
jmp 0x54dc6f
test eax, eax
jne 0x54dc79
mov dword [ebp + 0x400], 3
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edx, dword [esi]
pop ebx
not edx
mov dword [esi], edx
pop edi
pop esi
mov al, 1
pop ebp
add esp, 0x1004
ret 8
pop edi
mov dword [ebp + 0x400], 1
pop esi
xor al, al
pop ebp
add esp, 0x1004
ret 8

Function at 0x55e80e
Capabilities:
Get system information on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x4c
push ebx
push esi
push edi
push 4
pop eax
call fcn.00561be0
mov esi, esp
push 0x1c
lea eax, [ebp - 0x28]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_VirtualQuery]
test eax, eax
je 0x55e8a9
mov ebx, dword [ebp - 0x24]
lea eax, [ebp - 0x4c]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemInfo]
mov ecx, dword [ebp - 0x48]
mov eax, dword [0x890778]
lea edi, [ecx - 1]
not edi
and edi, esi
sub edi, ecx
mov esi, eax
dec esi
neg esi
sbb esi, esi
and esi, 0xfffffff1
add esi, 0x11
imul esi, ecx
add esi, ebx
cmp edi, esi
mov dword [ebp - 8], ecx
jb 0x55e8a9
cmp eax, 1
je 0x55e8ca
mov dword [ebp - 4], ebx
mov ebx, 0x1000
push 0x1c
lea eax, [ebp - 0x28]
push eax
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualQuery]
test eax, eax
je 0x55e8a9
mov eax, dword [ebp - 0x1c]
add dword [ebp - 4], eax
test dword [ebp - 0x18], ebx
je 0x55e876
test byte [ebp - 0x13], 1
mov eax, dword [ebp - 0x28]
mov dword [ebp - 4], eax
je 0x55e8a5
xor eax, eax
inc eax
jmp 0x55e8e9
cmp edi, eax
jae 0x55e8ad
xor eax, eax
jmp 0x55e8e9
cmp eax, esi
jae 0x55e8b4
mov dword [ebp - 4], esi
push 4
push ebx
push dword [ebp - 8]
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov eax, dword [0x890778]
jmp 0x55e8cd
mov dword [ebp - 4], edi
dec eax
neg eax
sbb eax, eax
and eax, 0x103
lea ecx, [ebp - 0xc]
push ecx
inc eax
push eax
push dword [ebp - 8]
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
lea esp, [ebp - 0x58]
pop edi
pop esi
pop ebx
leave
ret
Function at 0x560199
Capabilities:
Create thread
Resume thread

Disassembly:
push ebx
push edi
mov edi, dword [esp + 0xc]
xor ebx, ebx
test edi, edi
jne 0x5601b5
call fcn.00560ef6
mov dword [eax], 0x16
or eax, 0xffffffff
jmp 0x560227
push esi
push 0x8c
push 1
call fcn.00565bc4
mov esi, eax
test esi, esi
pop ecx
pop ecx
je 0x56020d
push esi
call fcn.00564ca0
mov eax, dword [esp + 0x1c]
pop ecx
push esi
push 4
push esi
push 0x560107
push dword [esp + 0x24]
mov dword [esi + 0x4c], edi
push 0
mov dword [esi + 0x50], eax
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov edi, eax
test edi, edi
mov dword [esi + 4], edi
je 0x560205
push edi
call dword [sym.imp.KERNEL32.dll_ResumeThread]
cmp eax, 0xffffffff
jne 0x560224
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov ebx, eax
push esi
call fcn.0055e6e4
test ebx, ebx
pop ecx
je 0x56021f
push ebx
call fcn.00560f08
pop ecx
or eax, 0xffffffff
jmp 0x560226
mov eax, edi
pop esi
pop edi
pop ebx
ret

Function at 0x5611a0
Capabilities:
Terminate process

Disassembly:
push 8
push 0x57e880
call fcn.005626d0
push 8
call fcn.00563689
pop ecx
xor edi, edi
mov dword [ebp - 4], edi
xor esi, esi
inc esi
cmp dword [0x8907b8], esi
jne 0x5611d4
push dword [ebp + 8]
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.KERNEL32.dll_TerminateProcess]
mov dword [0x8907b4], esi
mov al, byte [ebp + 0x10]
mov byte [0x8907b0], al
cmp dword [ebp + 0xc], edi
jne 0x56121e
cmp dword [0x925230], edi
je 0x56120e
mov eax, dword [0x92522c]
sub eax, 4
mov dword [0x92522c], eax
cmp eax, dword [0x925230]
jb 0x56120e
mov eax, dword [eax]
cmp eax, edi
je 0x5611ef
call eax
jmp 0x5611ef
push 0x5a99c8
mov eax, 0x5a99c0
call fcn.0056111e
pop ecx
push 0x5a99d4
mov eax, 0x5a99cc
call fcn.0056111e
pop ecx
or dword [ebp - 4], 0xffffffff
call 0x56124f
cmp dword [ebp + 0x10], edi
jne 0x56125d
mov dword [0x8907b8], esi
push dword [ebp + 8]
call fcn.005610dc
xor edi, edi
xor esi, esi
inc esi
cmp dword [ebp + 0x10], edi
je 0x56125c
push 8
call fcn.005635d4
pop ecx
ret
call fcn.0056270b
ret