Function at 0x50fa70
Capabilities:
Get file size
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
mov ecx, 7
push 0
push 0
dec ecx
jne 0x50fa78
push ecx
push ebx
push esi
push edi
mov dword [ebp - 0x10], edx
mov dword [ebp - 0xc], eax
mov eax, dword [ebp - 0xc]
call fcn.0040403c
mov eax, dword [ebp - 0x10]
call fcn.0040403c
lea esi, [ebp - 8]
xor eax, eax
push ebp
push 0x50fd5b
push dword fs:[eax]
mov dword fs:[eax], esp
xor ecx, ecx
push ebp
push 0x50fd29
push dword fs:[ecx]
mov dword fs:[ecx], esp
push 0
push 0x80
push 3
push 0
push 1
push 0x80000000
mov eax, dword [ebp - 0x10]
call fcn.0040404c
push eax
call sub.kernel32.dll_CreateFileA_1
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x34], 0xffffffff
jne 0x50faee
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
jmp 0x50fd38
push 0
mov eax, dword [ebp - 0x34]
push eax
call sub.kernel32.dll_GetFileSize_1
mov ebx, eax
push 0
push 0
push 0
push 2
push 0
mov eax, dword [ebp - 0x34]
push eax
call sub.kernel32.dll_CreateFileMappingA
mov dword [ebp - 0x38], eax
cmp dword [ebp - 0x38], 0
jne 0x50fb24
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
jmp 0x50fd38
push 0
push 0
push 0
push 4
mov eax, dword [ebp - 0x38]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [ebp - 4], eax
xor eax, eax
mov dword [esi], eax
mov edx, ebx
test edx, edx
jl 0x50fb9c
inc edx
xor eax, eax
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax], 0x43
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 1], 0x48
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 2], 0x6f
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 3], 0x73
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 4], 0x74
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 5], 0x52
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 6], 0x65
jne 0x50fb98
mov ecx, dword [ebp - 4]
cmp byte [ecx + eax + 7], 0x63
jne 0x50fb98
mov dword [esi], eax
jmp 0x50fb9c
inc eax
dec edx
jne 0x50fb45
add dword [esi], 8
cmp ebx, dword [esi]
jle 0x50fd04
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov eax, dword [ebp - 0x3c]
lea edx, [ebp - 0x14]
call fcn.00408b80
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov eax, dword [ebp - 0x3c]
lea edx, [ebp - 0x18]
call fcn.00408b80
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov edx, dword [ebp - 0x3c]
lea eax, [ebp - 0x1c]
call fcn.00403ca4
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov eax, dword [ebp - 0x3c]
lea edx, [ebp - 0x20]
call fcn.0050f978
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov edx, dword [ebp - 0x3c]
lea eax, [ebp - 0x28]
call fcn.00403ca4
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov edx, dword [ebp - 0x3c]
lea eax, [ebp - 0x24]
call fcn.00403ca4
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050f8f0
pop ecx
mov edx, dword [ebp - 0x3c]
lea eax, [ebp - 0x30]
call fcn.00403ca4
push ebp
lea eax, [ebp - 0x3c]
call fcn.0050fa0c
pop ecx
mov edx, dword [ebp - 0x3c]
lea eax, [ebp - 0x2c]
call fcn.00403ca4
mov eax, dword [ebp - 0x14]
call fcn.00403e88
test eax, eax
je 0x50fce2
mov eax, dword [ebp - 0x18]
call fcn.00403e88
test eax, eax
je 0x50fce2
lea eax, [ebp - 0x3c]
mov ecx, dword [ebp - 0x14]
mov edx, dword [ebp - 0xc]
call fcn.00403ed4
mov eax, dword [ebp - 0x3c]
call fcn.0050e220
sub eax, 3
je 0x50fcfc
dec eax
je 0x50fd04
mov eax, dword [ebp - 0x1c]
push eax
mov eax, dword [ebp - 0x20]
push eax
mov eax, dword [0x585ebc]
mov eax, dword [eax]
push eax
mov eax, dword [ebp - 0x2c]
push eax
mov eax, dword [ebp - 0x24]
push eax
mov eax, dword [ebp - 0x28]
push eax
mov eax, dword [0x585ebc]
mov eax, dword [eax]
push eax
mov eax, dword [0x585ebc]
mov eax, dword [eax]
push eax
lea edx, [ebp - 0x3c]
mov eax, dword [ebp - 0x30]
call fcn.00456a1c
mov eax, dword [ebp - 0x3c]
push eax
mov eax, dword [0x585ebc]
mov eax, dword [eax]
push eax
mov eax, dword [0x585ebc]
mov eax, dword [eax]
push eax
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x14]
mov eax, dword [ebp - 0xc]
call fcn.0050e4a4
cmp ebx, dword [esi]
jle 0x50fcfc
mov eax, dword [ebp - 4]
mov edx, dword [esi]
mov al, byte [eax + edx]
cmp al, 0x80
jne 0x50fcf6
inc dword [esi]
jmp 0x50fcfc
inc dword [esi]
cmp ebx, dword [esi]
jg 0x50fce6
cmp ebx, dword [esi]
jg 0x50fba7
mov eax, dword [ebp - 4]
push eax
call sub.kernel32.dll_UnmapViewOfFile
mov eax, dword [ebp - 0x38]
push eax
call sub.kernel32.dll_CloseHandle_1
mov eax, dword [ebp - 0x34]
push eax
call sub.kernel32.dll_CloseHandle_1
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
jmp 0x50fd33
call fcn.0050e148
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x50fd62
lea eax, [ebp - 0x3c]
call fcn.00403c0c
lea eax, [ebp - 0x30]
mov edx, 0xa
call fcn.00403c30
ret