Function at 0x431b20
Capabilities:
Delete registry key
Persist via default file association registry key
Set registry value

Disassembly:
push rbp
push rdi
push rsi
push rbx
sub rsp, 0x2e8
mov rbp, rsp
mov qword [rbp + 0x60], rcx
mov qword [rbp + 0x50], rdx
mov qword [rbp + 0x58], r8
mov qword [rbp + 0x70], 0
mov qword [rbp + 0x98], 0
mov qword [rbp + 0xa0], 0
mov qword [rbp + 0xa8], 0
nop
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0xb0], rax
mov byte [rbp + 0xb8], 0xa
lea rcx, [rbp + 0xce]
lea rdx, [0x00431ea4]
lea r8, [rbp + 0xb0]
xor r9, r9
call fcn.00422c90
mov rcx, qword [rbp + 0x60]
lea rdx, [rbp + 0xce]
lea r8, [rbp + 0x2d8]
call sub.advapi32.dll_RegOpenKeyW
mov edi, eax
test edi, edi
je 0x431ce6
mov rax, qword [rbp + 0x58]
test rax, rax
je 0x431bc7
mov rax, qword [rbp + 0x58]
cmp word [rax], 0
jne 0x431c10
lea rcx, [rbp + 0xa8]
mov rdx, qword [0x00449880]
call fcn.0040d960
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0xb0], rax
mov byte [rbp + 0xb8], 0xa
mov rcx, qword [rbp + 0xa8]
mov edx, 1
lea r8, [rbp + 0xb0]
xor r9, r9
call fcn.004359f0
mov dword [rbp + 0x6c], edi
jmp 0x431e2c
lea rsi, [rbp + 0xce]
jmp 0x431c1d
add rsi, 2
cmp word [rsi], 0
je 0x431c29
cmp word [rsi], 0x5c
jne 0x431c19
movzx rbx, word [rsi]
mov word [rsi], 0
mov rcx, qword [rbp + 0x60]
lea rdx, [rbp + 0xce]
xor r8, r8
xor r9, r9
mov dword [rsp + 0x20], 0
mov dword [rsp + 0x28], 0x2000000
mov qword [rsp + 0x30], 0
lea rax, [rbp + 0x2d8]
mov qword [rsp + 0x38], rax
lea rax, [rbp + 0xc8]
mov qword [rsp + 0x40], rax
call sub.advapi32.dll_RegCreateKeyExW
mov edi, eax
test edi, edi
je 0x431cc8
lea rcx, [rbp + 0xa0]
mov rdx, qword [0x00449880]
call fcn.0040d960
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0xb0], rax
mov byte [rbp + 0xb8], 0xa
mov rcx, qword [rbp + 0xa0]
mov edx, 1
lea r8, [rbp + 0xb0]
xor r9, r9
call fcn.004359f0
mov dword [rbp + 0x6c], edi
jmp 0x431e2c
test bx, bx
je 0x431ce5
mov word [rsi], bx
add rsi, 2
mov rcx, qword [rbp + 0x2d8]
call sub.advapi32.dll_RegCloseKey_1
jmp 0x431c1d
nop
mov rax, qword [rbp + 0x58]
test rax, rax
je 0x431cf9
mov rax, qword [rbp + 0x58]
cmp word [rax], 0
jne 0x431d58
mov rcx, qword [rbp + 0x2d8]
xor rdx, rdx
call sub.advapi32.dll_RegDeleteKeyW
mov edi, eax
test edi, edi
je 0x431e1c
lea rcx, [rbp + 0x98]
mov rdx, qword [0x00449880]
call fcn.0040d960
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0xb0], rax
mov byte [rbp + 0xb8], 0xa
mov rcx, qword [rbp + 0x98]
mov edx, 1
lea r8, [rbp + 0xb0]
xor r9, r9
call fcn.004359f0
jmp 0x431e1c
mov rax, qword [rbp + 0x58]
test rax, rax
je 0x431d6f
mov rax, qword [rbp + 0x58]
mov rcx, rax
call fcn.00409fc0
jmp 0x431d72
xor rax, rax
mov rcx, qword [rbp + 0x2d8]
lea rdx, [0x00431ed0]
xor r8, r8
mov r9d, 2
mov r10, qword [rbp + 0x58]
mov qword [rsp + 0x20], r10
add eax, 1
add eax, eax
mov dword [rsp + 0x28], eax
call sub.advapi32.dll_RegSetValueExW
mov edi, eax
test edi, edi
jne 0x431de1
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0x78], rax
mov byte [rbp + 0x80], 0xa
mov rax, qword [rbp + 0x58]
mov qword [rbp + 0x88], rax
mov byte [rbp + 0x90], 0xa
lea rcx, [0x00431ed2]
lea rdx, [rbp + 0x78]
mov r8d, 1
call fcn.0042e0b0
jmp 0x431e1c
lea rcx, [rbp + 0x70]
mov rdx, qword [0x004493b0]
call fcn.0040d960
mov rax, qword [rbp + 0x50]
mov qword [rbp + 0xb0], rax
mov byte [rbp + 0xb8], 0xa
mov rcx, qword [rbp + 0x70]
mov edx, 1
lea r8, [rbp + 0xb0]
xor r9, r9
call fcn.004359f0
mov rcx, qword [rbp + 0x2d8]
call sub.advapi32.dll_RegCloseKey_1
mov dword [rbp + 0x6c], edi
nop
lea rcx, [rbp + 0x70]
call fcn.004098a0
lea rcx, [rbp + 0x98]
mov edx, 3
call fcn.00409980
mov eax, dword [rbp + 0x6c]
lea rsp, [rbp + 0x2e8]
pop rbx
pop rsi
pop rdi
pop rbp
ret