Function at 0x45bc40
Capabilities:
Copy file
Extract resource via kernel32 functions
Set current directory
Write file on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
mov eax, 0x1000c
call fcn.004b8370
push ebx
push esi
mov esi, dword [ebp + 0x10]
mov ebx, ecx
push edi
mov ecx, esi
mov dword [esp + 0x14], ebx
call fcn.00404c80
test al, al
je 0x45bc77
push 0x10
push 0
push esi
call dword [sym.imp.api_ms_win_crt_convert_l1_1_0.dll_wcstol]
add esp, 0xc
jmp 0x45bc81
push esi
call dword [sym.imp.api_ms_win_crt_convert_l1_1_0.dll__wtoi]
add esp, 4
cmp dword [0x4e6a54], 0
mov esi, eax
je 0x45be12
cmp esi, 1
mov esi, dword [ebp + 0xc]
je 0x45bcec
mov ecx, esi
call fcn.00472940
test al, al
je 0x45bcec
mov eax, dword [0x4e40f4]
test byte [eax + 0x100], 1
jne 0x45bcd0
mov ecx, dword [0x4e69cc]
push 1
push 0
push 0xffffffffffffffff
push 0x4d112c
call fcn.004a1950
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0xc
push 0x4bac30
push 0
push 0x4d112c
mov ecx, ebx
call fcn.00448320
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0xc
push 0
push 0
push 2
push 0
push 0
push 0x40000000
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, eax
cmp edi, 0xffffffff
je 0x45bca3
mov edx, dword [ebp + 8]
mov ecx, edx
lea esi, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x45bd11
sub ecx, esi
mov eax, 0x103
sar ecx, 1
cmp ecx, 0x104
cmovae ecx, eax
lea eax, [ecx*2 + 2]
push eax
push edx
lea eax, [esp + 0x20]
push eax
call sub.VCRUNTIME140.dll_memcpy
add esp, 0xc
lea eax, [esp + 0x18]
push eax
call dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll__wcsupr]
add esp, 4
lea eax, [esp + 0x18]
push 0xa
push eax
push 0
call dword [sym.imp.KERNEL32.dll_FindResourceW]
mov ebx, eax
test ebx, ebx
je 0x45be07
push ebx
push 0
call dword [sym.imp.KERNEL32.dll_LoadResource]
test eax, eax
je 0x45be07
push eax
call dword [sym.imp.KERNEL32.dll_LockResource]
mov esi, eax
test esi, esi
je 0x45be07
cmp dword [esi], 0x4034b50
mov eax, dword [sym.imp.KERNEL32.dll_SizeofResource]
jne 0x45bde4
push 0
push ebx
push 0
call eax
push eax
lea edx, [esp + 0x14]
mov ecx, esi
call fcn.004a0ca0
add esp, 8
test eax, eax
je 0x45bddf
mov esi, dword [esp + 0xc]
lea ecx, [esp + 0x10]
push 0
push ecx
push eax
push esi
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
push esi
setne bl
call dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
add esp, 4
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x45be69
mov eax, dword [sym.imp.KERNEL32.dll_SizeofResource]
push 0
lea ecx, [esp + 0x14]
push ecx
push ebx
push 0
call eax
push eax
push esi
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
push edi
setne bl
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x45be69
push edi
xor bl, bl
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x45be69
push 0
lea eax, [esp + 0x1c]
push eax
push 0x8000
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_GetFullPathNameW]
push dword [0x4e965c]
mov edi, dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
call edi
xor eax, eax
cmp esi, 1
setne al
push eax
lea eax, [esp + 0x1c]
push eax
push dword [ebp + 8]
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
mov ecx, 0x4bac30
mov eax, dword [0x4e5b50]
setne bl
test eax, eax
je 0x45be66
mov eax, dword [eax]
test eax, eax
cmovne ecx, eax
push ecx
call edi
mov ecx, dword [esp + 0x14]
xor bl, 1
movzx eax, bl
push eax
call fcn.004483c0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0xc