Function at 0x427b30
Capabilities:
Get file size
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffc4
push ebx
push esi
push edi
xor edx, edx
mov dword [ebp - 0x3c], edx
mov dword [ebp - 0x38], edx
mov dword [ebp - 4], edx
mov ebx, eax
lea eax, [ebp - 0x18]
mov edx, dword [0x4244ac]
call fcn.0040b244
xor eax, eax
push ebp
push 0x427efe
push dword fs:[eax]
mov dword fs:[eax], esp
mov byte [ebp - 0x19], 0
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x427b92
push 0
push 0
push 3
push 0
push 1
push 0x80000000
mov eax, ebx
call fcn.0040a944
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x427bc0
push 0
push 0
push 3
push 0
push 1
push 0x80000000
lea eax, [ebp - 0x38]
mov edx, ebx
mov ecx, 0
call fcn.0040a554
mov eax, dword [ebp - 0x38]
call fcn.0040a3a8
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x427eca
push 0
push 0
push 0
push 2
push 0
push ebx
call sub.kernel32.dll_CreateFileMappingW
mov dword [ebp - 0x20], eax
cmp dword [ebp - 0x20], 0
je 0x427ec4
push 0
push 0
push 0
push 4
mov eax, dword [ebp - 0x20]
push eax
call sub.kernel32.dll_MapViewOfFile
mov esi, eax
test esi, esi
je 0x427ebb
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
cmp eax, 0x22
jbe 0x427c2b
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
and eax, 3
test eax, eax
jne 0x427c2b
cmp dword [esi], 0x4742444a
jne 0x427c2b
cmp byte [esi + 4], 1
je 0x427c2f
xor eax, eax
jmp 0x427c31
mov al, 1
mov byte [ebp - 0x19], al
cmp byte [ebp - 0x19], 0
je 0x427c83
cmp byte [esi + 0x21], 0
je 0x427c83
mov eax, dword [esi + 0x1d]
neg eax
mov dword [ebp - 0x24], eax
mov edi, esi
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
shr eax, 2
test eax, eax
jle 0x427c6e
mov dword [ebp - 0x28], 1
mov edx, dword [edi]
add dword [ebp - 0x24], edx
add edi, 4
inc dword [ebp - 0x28]
dec eax
jne 0x427c60
mov eax, dword [ebp - 0x24]
shr eax, 8
mov edx, dword [ebp - 0x24]
shl edx, 0x18
or eax, edx
cmp eax, dword [esi + 0x1d]
sete byte [ebp - 0x19]
cmp byte [ebp - 0x19], 0
je 0x427eb5
mov eax, esi
add eax, dword [esi + 9]
mov dword [ebp - 0x2c], eax
xor eax, eax
mov dword [ebp - 0x30], eax
xor eax, eax
mov dword [ebp - 0x34], eax
jmp 0x427d0a
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x30], eax
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x34], eax
lea ecx, [ebp - 4]
mov eax, esi
mov edx, dword [ebp - 0x34]
call fcn.00427a94
push 1
mov edi, dword [0x768bf8]
mov edi, dword [edi]
mov ecx, 0x7fffffff
mov edx, dword [ebp - 4]
mov eax, 0x427f1c
call edi
mov ecx, eax
lea eax, [ebp - 4]
mov edx, 1
call fcn.0040ad68
mov eax, dword [ebp - 0x30]
push eax
push 1
mov eax, dword [ebp - 4]
push eax
push 0
push 0
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov cl, 1
mov dl, 1
call fcn.00425268
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
test al, al
jne 0x427ca1
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov eax, dword [eax + 0xc]
test eax, eax
jle 0x427d74
mov edx, dword [ebp + 8]
push edx
mov edx, eax
dec edx
xor eax, eax
call fcn.00426e54
pop ecx
mov eax, dword [ebp + 8]
push eax
xor eax, eax
call fcn.004270c8
pop ecx
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov eax, dword [eax + 0x44]
test eax, eax
jbe 0x427d74
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx + 0xc]
lea edx, [edx + edx*4]
mov ecx, dword [ebp + 8]
mov ecx, dword [ecx - 4]
mov ecx, dword [ecx + 8]
sub eax, dword [ecx + edx*4 - 0x10]
mov ecx, dword [ebp + 8]
mov ecx, dword [ecx - 4]
mov ecx, dword [ecx + 8]
mov dword [ecx + edx*4 - 0xc], eax
xor eax, eax
mov dword [ebp - 0x30], eax
xor eax, eax
mov dword [ebp - 0x34], eax
xor edi, edi
mov eax, esi
add eax, dword [esi + 0xd]
mov dword [ebp - 0x2c], eax
jmp 0x427e4c
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x30], eax
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x34], eax
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
add edi, dword [ebp - 0x28]
lea ecx, [ebp - 4]
mov eax, esi
mov edx, dword [ebp - 0x34]
call fcn.00427a94
test edi, edi
jle 0x427e36
push dword [ebp - 4]
push 0x427f2c
lea ecx, [ebp - 0x3c]
mov eax, esi
mov edx, edi
call fcn.00427a94
push dword [ebp - 0x3c]
lea eax, [ebp - 4]
mov edx, 3
call fcn.0040ac38
lea eax, [ebp - 0x18]
push eax
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov ecx, dword [eax + 0x40]
add ecx, dword [ebp - 0x30]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov dl, 1
call fcn.00429a48
cmp byte [ebp - 0x18], 0
je 0x427e36
mov ecx, dword [0x768f90]
mov ecx, dword [ecx]
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call ecx
test al, al
je 0x427e36
mov eax, dword [ebp - 0xc]
call fcn.00409e0c
mov ecx, eax
inc ecx
lea eax, [ebp - 4]
mov edx, 1
call fcn.0040ad68
mov eax, dword [ebp - 0x30]
push eax
push 0
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov ecx, dword [ebp - 4]
mov dl, 1
call fcn.00425504
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
test al, al
jne 0x427d8d
xor eax, eax
mov dword [ebp - 0x30], eax
xor eax, eax
mov dword [ebp - 0x34], eax
mov eax, esi
add eax, dword [esi + 0x11]
mov dword [ebp - 0x2c], eax
jmp 0x427ea6
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x30], eax
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
mov eax, dword [ebp - 0x28]
add dword [ebp - 0x34], eax
push 0
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov ecx, dword [eax + 0x40]
add ecx, dword [ebp - 0x30]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov edx, dword [ebp - 0x34]
call fcn.004258e4
lea edx, [ebp - 0x28]
lea eax, [ebp - 0x2c]
call fcn.00427afc
test al, al
jne 0x427e73
push esi
call sub.kernel32.dll_UnmapViewOfFile
mov eax, dword [ebp - 0x20]
push eax
call sub.kernel32.dll_CloseHandle_1
push ebx
call sub.kernel32.dll_CloseHandle_1
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x427f05
lea eax, [ebp - 0x3c]
call fcn.00409914
lea eax, [ebp - 0x38]
call fcn.00409938
lea eax, [ebp - 0x18]
mov edx, dword [0x4244ac]
call fcn.0040b31c
lea eax, [ebp - 4]
call fcn.00409914
ret