Function at 0x438f00
Capabilities:
Get file size
Hash data using sha256
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4593a6
mov eax, dword fs:[0]
push eax
sub esp, 0x270
mov eax, dword [0x46a008]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x268], ecx
push 0x208
lea eax, [ebp - 0x238]
push 0
push eax
call fcn.00449710
add esp, 0xc
lea eax, [ebp - 0x238]
push 0x104
push eax
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
push 0
push 0x80
push 3
push 0
push 1
push SysReAllocStringLen
lea eax, [ebp - 0x238]
mov dword [ebp - 0x260], 0
xorps xmm0, xmm0
push eax
movlpd qword [ebp - 0x25c], xmm0
call dword [sym.imp.KERNEL32.dll_CreateFileW]
lea ecx, [ebp - 0x254]
mov dword [ebp - 0x264], eax
push ecx
push eax
mov dword [ebp - 0x254], 0
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov esi, eax
cmp esi, 0xffffffff
jne 0x438fc8
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
je 0x438fc8
mov ecx, dword [ebp - 0x25c]
jmp 0x438fdb
mov eax, dword [ebp - 0x254]
xor ecx, ecx
add ecx, esi
adc eax, 0
mov dword [ebp - 0x258], eax
lea esi, [ecx + 0x80]
mov dword [ebp - 0x254], ecx
push esi
push 0x45f2a0
mov dword [ebp - 0x258], esi
mov dword [ebp - 0x26c], 0
call fcn.004025a0
mov edi, eax
mov dword [ebp - 0x270], edi
test edi, edi
je 0x4391ae
mov dword [ebp - 0x26c], esi
push 0
lea eax, [ebp - 0x260]
mov dword [ebp - 4], 0
push eax
push dword [ebp - 0x254]
lea esi, [edi + 0x80]
push esi
push dword [ebp - 0x264]
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov eax, dword [0x8982a0]
mov edx, esi
push dword [ebp - 0x254]
mov ecx, edi
mov dword [edi], eax
mov dword [edi + 8], 0
mov dword [edi + 0xc], 0
mov dword [edi + 0x20], 0x6a09e667
mov dword [edi + 0x24], 0xbb67ae85
mov dword [edi + 0x28], 0x3c6ef372
mov dword [edi + 0x2c], 0xa54ff53a
mov dword [edi + 0x30], 0x510e527f
mov dword [edi + 0x34], 0x9b05688c
mov dword [edi + 0x38], 0x1f83d9ab
mov dword [edi + 0x3c], 0x5be0cd19
call fcn.00409470
xorps xmm0, xmm0
lea edx, [ebp - 0x30]
mov ecx, edi
movups xmmword [ebp - 0x30], xmm0
movups xmmword [ebp - 0x20], xmm0
call fcn.00409520
push ecx
lea eax, [ebp - 0x10]
push eax
lea eax, [ebp - 0x30]
push eax
lea ecx, [ebp - 0x27c]
call fcn.00447c20
push dword [ebp - 0x258]
mov byte [ebp - 4], 1
push 0
push edi
call fcn.00449710
add esp, 0xc
lea edx, [ebp - 0x27c]
lea ecx, [ebp - 0x250]
call fcn.00438e80
mov byte [ebp - 4], 2
cmp dword [eax + 0x14], 0x10
jb 0x4390f8
mov eax, dword [eax]
push 0x40
push eax
push dword [ebp - 0x268]
call fcn.00449190
mov byte [ebp - 4], 1
add esp, 0xc
mov edx, dword [ebp - 0x23c]
cmp edx, 0x10
jb 0x439147
mov ecx, dword [ebp - 0x250]
inc edx
mov eax, ecx
cmp edx, 0x1000
jb 0x43913d
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x4391c9
push edx
push ecx
call fcn.00448373
add esp, 8
mov byte [ebp - 4], 0
mov ecx, dword [ebp - 0x27c]
test ecx, ecx
je 0x439181
mov edx, dword [ebp - 0x274]
mov eax, ecx
sub edx, ecx
cmp edx, 0x1000
jb 0x439177
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x4391ce
push edx
push ecx
call fcn.00448373
add esp, 8
mov dword [ebp - 4], 3
push dword [edi - 4]
call fcn.0044cdce
add esp, 4
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.0044823d
mov esp, ebp
pop ebp
ret
push 0x4685e0
lea eax, [ebp - 0x254]
mov dword [ebp - 0x254], 1
push eax
call fcn.0044b1e1
call fcn.0044d327
call fcn.0044d327
int3