Function at 0x4c5020
Capabilities:
Check os version
Extract resource via kernel32 functions

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x780
mov eax, dword [0x57d718]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 8]
lea eax, [ebp - 0x738]
push esi
push edi
push 0x11c
push 0
push eax
mov dword [ebp - 0x740], ecx
call fcn.00501330
push 0x11c
push 0
push ebx
mov dword [ebp - 0x738], 0x11c
call fcn.00501330
add esp, 0x18
mov dword [ebx], 0x11c
push ebx
call dword [sym.imp.KERNEL32.dll_GetVersionExW]
cmp dword [ebx + 4], 5
mov edi, dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov eax, dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
jne 0x4c50cf
push 0x5547a4
push 0x5547b4
call eax
push eax
call edi
mov esi, eax
mov dword [ebp - 0x73c], 0
test esi, esi
je 0x4c50ca
lea eax, [ebp - 0x73c]
push eax
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call esi
test eax, eax
je 0x4c50ca
cmp dword [ebp - 0x73c], 0
jne 0x4c52f7
mov eax, dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
push 0x554824
push 0x554834
call eax
push eax
call edi
test eax, eax
je 0x4c50eb
lea ecx, [ebp - 0x738]
push ecx
call eax
mov eax, dword [ebx + 4]
lea ecx, [eax + eax*4]
mov eax, dword [ebx + 8]
lea esi, [eax + ecx*2]
mov eax, dword [ebp - 0x734]
mov dword [ebp - 0x74c], esi
lea ecx, [eax + eax*4]
mov eax, dword [ebp - 0x730]
lea eax, [eax + ecx*2]
cmp eax, esi
jle 0x4c5128
mov ecx, 0x47
mov dword [ebp - 0x74c], eax
lea esi, [ebp - 0x738]
mov edi, ebx
rep movsd dword es:[edi], dword [esi]
push 0x410
lea eax, [ebp - 0x61c]
push 0
push eax
call fcn.00501330
push 0x208
lea eax, [ebp - 0x20c]
push 0
push eax
call fcn.00501330
add esp, 0x18
lea eax, [ebp - 0x20c]
push 0x104
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemWindowsDirectoryW]
dec eax
cmp eax, 0x102
ja 0x4c52f7
mov ecx, dword [ebp - 0x740]
call fcn.004c5320
test eax, eax
lea eax, [ebp - 0x20c]
jne 0x4c518b
push 0x5547c8
jmp 0x4c5190
push 0x5547f4
push eax
lea eax, [ebp - 0x61c]
push eax
call dword [sym.imp.SHLWAPI.dll_PathCombineW]
push 2
xor esi, esi
lea eax, [ebp - 0x61c]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_LoadLibraryExW]
mov edi, eax
test edi, edi
je 0x4c5241
push 0x10
push 1
push edi
call dword [sym.imp.KERNEL32.dll_FindResourceW]
mov dword [ebp - 0x744], eax
test eax, eax
je 0x4c523a
push eax
push edi
call dword [sym.imp.KERNEL32.dll_SizeofResource]
push dword [ebp - 0x744]
mov dword [ebp - 0x73c], eax
push edi
call dword [sym.imp.KERNEL32.dll_LoadResource]
mov dword [ebp - 0x748], eax
test eax, eax
je 0x4c523a
push eax
call dword [sym.imp.KERNEL32.dll_LockResource]
mov dword [ebp - 0x744], eax
test eax, eax
je 0x4c522e
push dword [ebp - 0x73c]
call fcn.005081c8
mov esi, eax
add esp, 4
test esi, esi
je 0x4c522e
push dword [ebp - 0x73c]
push dword [ebp - 0x744]
push esi
call fcn.00500820
add esp, 0xc
push dword [ebp - 0x748]
call dword [sym.imp.KERNEL32.dll_FreeResource]
push edi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
xor edi, edi
test esi, esi
je 0x4c52f7
lea eax, [ebp - 0x748]
mov dword [ebp - 0x73c], edi
push eax
lea eax, [ebp - 0x73c]
mov dword [ebp - 0x748], edi
push eax
push 0x5532d4
push esi
call sub.VERSION.dll_VerQueryValueW
test eax, eax
je 0x4c529f
mov eax, dword [ebp - 0x73c]
mov edi, 1
movups xmm0, xmmword [eax]
movups xmmword [ebp - 0x780], xmm0
movups xmm0, xmmword [eax + 0x10]
movups xmmword [ebp - 0x770], xmm0
movups xmm0, xmmword [eax + 0x20]
movups xmmword [ebp - 0x760], xmm0
push esi
call fcn.005048e6
add esp, 4
test edi, edi
je 0x4c52f7
mov eax, dword [ebp - 0x770]
mov ecx, eax
shr ecx, 0x10
movzx edx, ax
lea eax, [ecx + ecx*4]
lea eax, [edx + eax*2]
cmp dword [ebp - 0x74c], eax
jge 0x4c52ea
mov eax, dword [ebp - 0x76c]
mov dword [ebx + 4], ecx
mov ecx, dword [ebp - 0x740]
shr eax, 0x10
mov dword [ebx + 0xc], eax
mov eax, 1
mov dword [ebx + 8], edx
mov dword [ecx + 4], eax
jmp 0x4c5304
mov ecx, dword [ebp - 0x740]
xor eax, eax
mov dword [ecx + 4], eax
jmp 0x4c5304
mov eax, dword [ebp - 0x740]
mov dword [eax + 4], 0
mov ecx, dword [ebp - 4]
mov eax, 1
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.004bddc0
mov esp, ebp
pop ebp
ret 4