Function at 0x140031ab4
Capabilities:
Encode data using xor
Get file size
Read file on windows

Disassembly:
mov rax, rsp
mov qword [rax + 0x18], rbx
mov qword [rax + 0x20], r9
mov dword [rax + 0x10], edx
mov qword [rax + 8], rcx
push rbp
push rsi
push rdi
push r12
push r13
push r14
push r15
sub rsp, 0xa0
mov rax, qword [r9]
xor r14d, r14d
mov rcx, r8
cmp word [rax + 2], r14w
lea edi, [r14 + 0x7c]
mov r13, r8
mov edx, edi
setne byte [rsp + 0x48]
call qword [sym.imp.SHLWAPI.dll_StrChrW]
lea r15d, [r14 + 0x2b]
mov rbx, rax
mov qword [rsp + 0x50], rax
cmp rax, r14
jne 0x140031b4b
lea rcx, [rsp + 0x40]
mov rdx, r13
call fcn.140062680
lea rcx, [rsp + 0x40]
call fcn.14005fef8
cmp al, r14b
jle 0x140031b3c
mov edx, r15d
mov rcx, r13
mov di, r15w
call qword [sym.imp.SHLWAPI.dll_StrChrW]
mov qword [rsp + 0x50], rax
lea rcx, [rsp + 0x40]
call fcn.14005041c
mov rbx, qword [rsp + 0x50]
or rsi, 0xffffffffffffffff
mov rbp, r14
mov r12, rsi
cmp rbx, r14
je 0x140031baf
mov word [rbx], r14w
add qword [rsp + 0x50], 2
lea rdx, [rsp + 0x40]
lea rcx, [rsp + 0x50]
mov qword [rsp + 0x40], r14
call fcn.14005debc
mov rax, qword [rsp + 0x50]
movsxd rbp, dword [rsp + 0x40]
mov rcx, r14
mov qword [rsp + 0x40], rcx
cmp di, word [rax]
jne 0x140031bac
add rax, 2
lea rdx, [rsp + 0x40]
lea rcx, [rsp + 0x50]
mov qword [rsp + 0x50], rax
call fcn.14005debc
mov rcx, qword [rsp + 0x40]
movsxd r12, ecx
lea rcx, [rsp + 0x70]
mov rdx, r13
call fcn.140062680
cmp rbx, r14
je 0x140031bc5
mov word [rbx], r15w
lea rdx, [rsp + 0x78]
lea rcx, [rsp + 0x70]
mov dword [rsp + 0x78], r14d
call fcn.14006a320
mov r15d, dword [rsp + 0x108]
mov rcx, qword [rsp + 0x100]
lea rdx, [rsp + 0x70]
xor r8d, r8d
sar r15d, 0x10
mov dil, al
mov qword [rsp + 0x58], r14
mov qword [rsp + 0x60], r14
mov qword [rsp + 0x68], r14
call fcn.140003700
mov rdx, qword [rsp + 0x70]
mov qword [rsp + 0x38], r14
mov dword [rsp + 0x30], r14d
lea rcx, [rsp + 0x40]
mov r9d, 7
mov r8d, 0x80000000
mov dword [rsp + 0x28], 3
mov qword [rsp + 0x40], r14
mov qword [rsp + 0x20], r14
call fcn.140003568
mov rbx, qword [rsp + 0x40]
cmp rbx, r14
je 0x14003203b
mov rcx, rbx
cmp dil, r14b
je 0x140031c66
mov dl, dil
call fcn.14005605c
mov rdi, rax
jmp 0x140031c7b
lea rdx, [rsp + 0x40]
mov qword [rsp + 0x40], r14
call qword [sym.imp.KERNEL32.dll_GetFileSizeEx]
mov rdi, qword [rsp + 0x40]
cmp rdi, r14
jle 0x14003202d
cmp rdi, rbp
jl 0x14003202d
cmp rbp, r14
jle 0x140031c95
sub rdi, rbp
mov eax, 0x10000000
cmp rdi, rax
cmovg rdi, rax
cmp r12, r14
jle 0x140031cad
cmp rdi, r12
cmovg rdi, r12
lea eax, [rdi + 0x10]
lea rcx, [rsp + 0x58]
movsxd r12, eax
mov rdx, r12
call fcn.140057f90
mov r14, qword [rsp + 0x58]
xor eax, eax
cmp r14, rax
jne 0x140031ce6
cmp rbx, rsi
je 0x140031cda
mov rcx, rbx
call qword [sym.imp.KERNEL32.dll_CloseHandle]
mov esi, dword [rsp + 0x108]
jmp 0x14003203b
mov qword [rsp + 0x68], r12
xor r12d, r12d
movsxd rax, edi
cmp rbp, r12
mov qword [rsp + 0x60], rax
jle 0x140031d0d
xor r9d, r9d
xor r8d, r8d
mov rdx, rbp
mov rcx, rbx
call qword [sym.imp.KERNEL32.dll_SetFilePointerEx]
lea r9, [rsp + 0x40]
mov r8d, edi
mov rdx, r14
mov rcx, rbx
mov dword [rsp + 0x40], r12d
mov qword [rsp + 0x20], r12
call qword [sym.imp.KERNEL32.dll_ReadFile]
mov ebp, dword [rsp + 0x40]
cmp ebp, r12d
cmovl ebp, r12d
xor edx, edx
movsxd rdi, ebp
lea r8d, [rdx + 0x10]
lea rcx, [rdi + r14]
call fcn.1400d4180
cmp rbx, rsi
je 0x140031d56
mov rcx, rbx
call qword [sym.imp.KERNEL32.dll_CloseHandle]
mov rbx, qword [rsp + 0xf8]
mov rdx, r13
mov rcx, rbx
mov qword [rsp + 0x60], rdi
mov qword [rsp + 0x68], rdi
call fcn.1400582c8
lea rdx, [0x1400f4240]
mov rcx, rbx
call fcn.1400582c8
mov rcx, qword [rsp + 0x58]
xor r8d, r8d
mov edx, ebp
call fcn.14005417c
movzx esi, r15w
mov r14d, 1
movzx ecx, sil
mov bpl, al
mov ebx, ecx
shl ebx, 8
or ebx, ecx
mov rcx, qword [rsp + 0x58]
cmp al, r12b
je 0x140031e2e
mov qword [rsp + 0x80], rcx
lea rdx, [rsp + 0x58]
lea rcx, [rsp + 0x80]
mov r8d, esi
mov qword [rsp + 0x58], r12
mov qword [rsp + 0x60], r12
mov qword [rsp + 0x68], r12
mov qword [rsp + 0x90], rdi
mov qword [rsp + 0x88], rdi
call fcn.14005cba0
mov rcx, qword [rsp + 0x80]
call fcn.140050400
mov ecx, dword [rsp + 0x108]
movsx r11d, bpl
movzx eax, cx
mov edi, ebx
shl edi, 0x10
or edi, eax
or edi, r11d
or r11d, ecx
lea rcx, [rsp + 0x80]
mov dword [rsp + 0x108], r11d
call fcn.14005041c
jmp 0x140031e68
mov eax, 0xfeff
cmp ax, word [rcx]
je 0x140031e42
mov eax, 0xfffe
cmp ax, word [rcx]
jne 0x140031e44
mov ebx, esi
lea rax, [rdi + 1]
shr rax, 1
jmp 0x140031e54
xor word [rcx], bx
add rcx, 2
sub eax, r14d
jns 0x140031e4d
movzx eax, word [rsp + 0x108]
mov edi, ebx
shl edi, 0x10
or edi, eax
or edi, 3
lea rcx, [rsp + 0x58]
mov edx, edi
call fcn.1400c4740
mov r8, qword [rsp + 0x58]
movzx edx, bx
mov rcx, r8
call fcn.140018788
movsxd r13, eax
lea eax, [r13 + r13]
cmp ebx, esi
je 0x140031eb1
mov rcx, r13
xor bx, r15w
sub rcx, r14
js 0x140031eb1
xor word [r8], bx
add r8, 2
sub rcx, r14
jns 0x140031e9f
mov r8, qword [rsp + 0x58]
mov r14, qword [rsp + 0x100]
movsxd rbx, eax
mov rcx, r8
movzx r12d, word [r14 + 0x88]
lea rdx, [rbx + 0x23]
mov qword [rsp + 0x68], r13
mov qword [rsp + 0x60], r13
call fcn.140057d90
xor ebp, ebp
lea rcx, [rbx + rax]
mov qword [rsp + 0x58], rax
lea eax, [rbp + 0xf]
mov word [rcx + 0x20], bp
mov word [rcx + rax*2], r15w
sub rax, 1
jns 0x140031eec
mov rsi, qword [rsp + 0x58]
mov r8b, byte [rsp + 0x48]
mov rcx, r14
mov rdx, rsi
call fcn.140023e08
cmp word [rsi], r12w
jne 0x140031f19
mov esi, ebp
jmp 0x14003203b
mov r15, qword [rsp + 0xe0]
cmp qword [r15], rbp
je 0x140031f36
mov rcx, qword [r15]
movzx edx, r12w
call fcn.140018788
mov ebx, eax
jmp 0x140031f38
mov ebx, ebp
movzx eax, word [r14 + 0x90]
mov rcx, qword [r15]
cmp word [rsi + r13*2 - 2], ax
mov eax, 1
cmovne ebp, eax
lea eax, [rbp + rbx]
lea edx, [rax + r13 + 0x10]
movsxd rdx, edx
lea rdx, [rdx + rdx + 2]
call fcn.140057d90
mov edx, dword [rsp + 0xe8]
cmp edx, ebx
mov qword [r15], rax
cmovg edx, ebx
cmp ebx, edx
movsxd rcx, edx
mov dword [rsp + 0xe8], edx
lea r10, [rax + rcx*2]
jle 0x140031fa3
mov eax, ebx
sub eax, edx
mov rdx, r10
add eax, eax
movsxd r8, eax
movsxd rax, ebp
add rax, r13
lea rcx, [r10 + rax*2]
call fcn.14001aa7c
xor eax, eax
cmp ebp, eax
je 0x140031fb6
movzx eax, word [r14 + 0x90]
mov word [r10 + r13*2], ax
lea r8, [r13 + r13]
mov rdx, rsi
mov rcx, r10
call fcn.14001aac4
movsxd rcx, ebp
movsxd r8, ebx
lea rax, [r13 + rcx]
add r8, rax
mov rax, qword [r15]
mov word [rax + r8*2], r12w
mov rcx, qword [rsp + 0x58]
call fcn.140050400
mov edi, dword [rsp + 0x108]
mov r9, qword [rsp + 0xf8]
mov edx, dword [rsp + 0xe8]
mov r8d, r13d
mov rcx, r15
mov dword [rsp + 0x28], edi
mov qword [rsp + 0x20], r14
call fcn.14003170c
movzx ebx, ax
lea rcx, [rsp + 0x58]
or ebx, edi
call fcn.14005041c
lea rcx, [rsp + 0x70]
call fcn.14005041c
mov eax, ebx
jmp 0x140032051
cmp rbx, rsi
je 0x14003203b
mov rcx, rbx
call qword [sym.imp.KERNEL32.dll_CloseHandle]
lea rcx, [rsp + 0x58]
call fcn.14005041c
lea rcx, [rsp + 0x70]
call fcn.14005041c
mov eax, esi
mov rbx, qword [rsp + 0xf0]
add rsp, 0xa0
pop r15
pop r14
pop r13
pop r12
pop rdi
pop rsi
pop rbp
ret