Function at 0x140001748
Capabilities:
Encode data using xor

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x10], rsi
mov qword [rsp + 0x18], rdi
lea rsi, [0x14003a120]
mov r10, r8
mov rbx, rdx
mov r11d, ecx
test r8, r8
je 0x140001791
test bl, 7
je 0x140001791
movzx ecx, byte [rbx]
inc rbx
movzx eax, r11b
xor rcx, rax
mov eax, r11d
shr eax, 8
mov r11d, dword [rsi + rcx*4]
xor r11d, eax
sub r10, 1
jne 0x14000176c
cmp r10, 8
jb 0x14000183b
mov rdi, r10
shr rdi, 3
imul rax, rdi, 0xfffffffffffffff8
add r10, rax
xor r11d, dword [rbx]
mov r9d, dword [rbx + 4]
add rbx, 8
mov eax, r9d
shr eax, 0x18
movzx edx, al
mov eax, r9d
shr eax, 0x10
movzx ecx, al
mov eax, r9d
shr eax, 8
mov r8d, dword [rsi + rdx*4]
xor r8d, dword [rsi + rcx*4 + 0x400]
movzx ecx, al
mov eax, r11d
shr eax, 0x18
xor r8d, dword [rsi + rcx*4 + 0x800]
movzx ecx, al
mov eax, r11d
shr eax, 0x10
xor r8d, dword [rsi + rcx*4 + 0x1000]
movzx ecx, al
mov eax, r11d
shr eax, 8
xor r8d, dword [rsi + rcx*4 + 0x1400]
movzx ecx, al
movzx eax, r9b
xor r8d, dword [rsi + rcx*4 + 0x1800]
xor r8d, dword [rsi + rax*4 + 0xc00]
movzx eax, r11b
mov r11d, r8d
xor r11d, dword [rsi + rax*4 + 0x1c00]
sub rdi, 1
jne 0x1400017a9
test r10, r10
je 0x140001860
movzx ecx, byte [rbx]
inc rbx
movzx eax, r11b
xor rcx, rax
mov eax, r11d
shr eax, 8
mov r11d, dword [rsi + rcx*4]
xor r11d, eax
sub r10, 1
jne 0x140001840
mov rbx, qword [rsp + 8]
mov eax, r11d
mov rsi, qword [rsp + 0x10]
mov rdi, qword [rsp + 0x18]
ret

Function at 0x140001874
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
cmp dword [rcx + 4], 0
mov r8, rcx
jne 0x1400018bb
xor r9d, r9d
mov r10d, r9d
mov r11d, 8
mov edx, r10d
mov ecx, r10d
shr edx, 1
mov eax, edx
mov r10d, edx
xor eax, 0xedb88320
and cl, 1
cmovne r10d, eax
sub r11, 1
jne 0x140001889
mov dword [r8], r10d
inc r9d
add r8, 4
cmp r9d, 0x100
jb 0x140001880
ret

Function at 0x14000205c
Capabilities:
Read file on windows

Disassembly:
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rsi
push rdi
sub rsp, 0x30
cmp dword [rcx + 0x14], 1
mov rdi, r8
mov rsi, rdx
mov rbx, rcx
jne 0x140002089
mov ecx, 0xfffffff6
call qword [sym.imp.KERNEL32.dll_GetStdHandle]
mov qword [rbx + 8], rax
mov rcx, qword [rbx + 8]
lea r9, [rsp + 0x40]
and qword [rsp + 0x20], 0
mov r8d, edi
mov rdx, rsi
call qword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x140002108
mov rcx, rbx
call fcn.1400021b4
test al, al
je 0x1400020cc
mov r8d, 0x4e20
cmp rdi, r8
jbe 0x1400020cc
mov rdx, rsi
mov rcx, rbx
call fcn.14000205c
jmp 0x14000210c
cmp dword [rbx + 0x14], 1
jne 0x1400020e1
call qword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0x6d
jne 0x1400020e1
xor eax, eax
jmp 0x14000210c
cmp dword [rbx + 0x14], 0
jne 0x140002103
cmp rdi, 0x8000
jbe 0x140002103
call qword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0x21
jne 0x140002103
mov r8d, 0x8000
jmp 0x1400020bf
or eax, 0xffffffff
jmp 0x14000210c
mov eax, dword [rsp + 0x40]
mov rbx, qword [rsp + 0x48]
mov rsi, qword [rsp + 0x50]
add rsp, 0x30
pop rdi
ret

Function at 0x14000276c
Capabilities:
Clear file content

Disassembly:
sub rsp, 0x28
mov rcx, qword [rcx + 8]
call qword [sym.imp.KERNEL32.dll_SetEndOfFile]
cmp eax, 1
sete al
add rsp, 0x28
ret