Function at 0x100af700
Capabilities:
Read file on windows

Disassembly:
push ecx
push edi
mov edi, dword [esp + 0xc]
mov dword [esp + 4], 0
cmp dword [edi + 4], 0
je 0x100af727
push 1
lea eax, [esp + 0x10]
push eax
push edi
call fcn.100aefb0
mov dword [esp + 4], eax
jmp 0x100af741
push 0
lea eax, [esp + 8]
push eax
push 1
lea eax, [esp + 0x18]
push eax
push dword [edi]
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov eax, dword [esp + 4]
cmp eax, 1
je 0x100af74d
xor eax, eax
pop edi
pop ecx
ret 8
mov cl, byte [esp + 0xc]
test cl, cl
js 0x100af769
mov eax, dword [esp + 0x10]
pop edi
mov byte [eax], cl
mov byte [eax + 1], 0
mov eax, 1
pop ecx
ret 8
mov al, cl
and al, 0xe0
push esi
cmp al, 0xc0
jne 0x100af779
mov esi, 2
jmp 0x100af795
mov al, cl
and al, 0xf0
cmp al, 0xe0
jne 0x100af788
mov esi, 3
jmp 0x100af795
mov al, cl
and al, 0xf8
cmp al, 0xf0
jne 0x100af7f2
mov esi, 4
mov edx, dword [esp + 0x14]
mov byte [edx], cl
cmp dword [edi + 4], 0
je 0x100af7c4
lea eax, [esi - 1]
push eax
lea eax, [edx + 1]
push eax
push edi
call fcn.100aefb0
mov edx, eax
lea ecx, [esi - 1]
xor eax, eax
cmp edx, ecx
setne al
dec eax
and eax, esi
pop esi
pop edi
pop ecx
ret 8
push 0
lea eax, [esp + 0xc]
push eax
lea eax, [esi - 1]
push eax
lea eax, [edx + 1]
push eax
push dword [edi]
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov edx, dword [esp + 8]
lea ecx, [esi - 1]
xor eax, eax
cmp edx, ecx
setne al
dec eax
and eax, esi
pop esi
pop edi
pop ecx
ret 8
mov eax, dword [esp + 0x14]
pop esi
pop edi
mov word [eax], 0x3f
mov eax, 1
pop ecx
ret 8

Function at 0x100b05a7
Capabilities:
Hash data with md5

Disassembly:
mov eax, dword [esp + 4]
and dword [eax + 0x14], 0
and dword [eax + 0x10], 0
mov dword [eax], 0x67452301
mov dword [eax + 4], 0xefcdab89
mov dword [eax + 8], 0x98badcfe
mov dword [eax + 0xc], 0x10325476
ret

Function at 0x100b0e49
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
mov edx, dword [esp + 4]
test edx, edx
jne 0x100b0e5a
mov eax, dword [esp + 0xc]
jmp 0x100b0f36
mov ecx, dword [esp + 0xc]
push ebx
push esi
mov esi, dword [esp + 0x10]
not ecx
mov ebx, 0xff
cmp esi, 8
jb 0x100b0f17
push edi
mov edi, esi
shr edi, 3
movzx eax, byte [edx]
sub esi, 8
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 1]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 2]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 3]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 4]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 5]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 6]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
movzx eax, byte [edx + 7]
add edx, 8
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
dec edi
jne 0x100b0e7a
pop edi
test esi, esi
je 0x100b0f30
movzx eax, byte [edx]
xor eax, ecx
shr ecx, 8
and eax, ebx
xor ecx, dword [eax*4 + 0x101b2928]
inc edx
dec esi
jne 0x100b0f1b
not ecx
pop esi
mov eax, ecx
pop ebx
ret 0xc