Function at 0x1400fb2d0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x10], rbp
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], r9
push rdi
push r12
push r13
push r14
push r15
sub rsp, 0x20
mov r15, qword [rcx + 0x20]
lea rsi, [rcx + 0xf0]
mov qword [r9], 0
lea rbp, [rcx + 0xc80]
mov r14, r9
mov r12, r8
mov r13, rdx
mov rdi, rcx
nop word [rax + rax]
mov r8, r12
mov edx, 0xa
mov rcx, r13
call sub.VCRUNTIME140.dll_memchr
mov rbx, rax
mov rdx, r13
mov rcx, rbp
test rax, rax
je 0x1400fbc70
sub rbx, r13
inc rbx
mov r8, rbx
call fcn.1400e1b20
test eax, eax
jne 0x1400fbbec
add qword [r14], rbx
sub r12, rbx
add r13, rbx
cmp dword [rsi + 0x44], eax
jne 0x1400fb393
mov rcx, rbp
call fcn.1400e1b80
mov rcx, rbp
mov rbx, rax
call fcn.1400e1b90
mov r8, rax
mov r9, rbx
mov rdx, r15
mov rcx, rdi
call fcn.1400fae20
cmp eax, 2
je 0x1400fbb21
mov rcx, rbp
call fcn.1400e1b90
mov r14, rax
movzx ecx, byte [rax]
cmp cl, 0xa
je 0x1400fb76c
cmp cl, 0xd
je 0x1400fb76c
mov ecx, dword [rsi + 0x44]
mov ebx, 4
lea eax, [rcx + 1]
mov dword [rsi + 0x44], eax
test ecx, ecx
jne 0x1400fb6c2
mov rax, qword [r15 + 0x2c8]
mov ecx, dword [rax + 0x84]
test cl, 3
je 0x1400fb5cd
movzx eax, byte [r14]
mov rbx, r14
test al, al
je 0x1400fb403
nop word [rax + rax]
cmp al, 0x20
je 0x1400fb3f8
cmp al, 9
jne 0x1400fb403
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x1400fb3f0
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x1400fb4a3
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x1400fb4e9
sub ecx, 1
je 0x1400fb43e
cmp ecx, 1
jne 0x1400fbb49
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x1400fb44a
cmp al, 9
jne 0x1400fb4a3
movsx ecx, byte [rbx + 7]
lea eax, [rdx - 0x30]
lea r9d, [rax + rax*4]
add r9d, r9d
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1400fb4a3
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1400fb4a3
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1400fb4a3
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rsi + 0x50], ecx
movzx eax, byte [rbx + 0xa]
cmp al, 0x20
je 0x1400fb571
sub al, 9
cmp al, 4
jbe 0x1400fb571
lea rcx, [rdi + 0xc80]
call fcn.1400e1b80
lea rcx, [rdi + 0xc80]
mov rbx, rax
call fcn.1400e1b90
mov rdx, rax
mov r8, rbx
mov rcx, rdi
call fcn.1400fad30
cmp eax, 1
jne 0x1400fbbc8
mov dword [rsi + 0x50], 0xc8
mov byte [r15 + 0x498], 0xa
jmp 0x1400fb6ac
cmp byte [rbx + 6], 0x2e
jne 0x1400fbbab
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, 1
ja 0x1400fbbab
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x1400fb512
cmp al, 9
jne 0x1400fbbab
lea r9d, [rcx - 0x26]
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1400fbbab
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1400fbbab
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1400fbbab
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rsi + 0x50], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1400fb571
cmp al, 9
je 0x1400fb571
sub al, 0xa
cmp al, 3
ja 0x1400fbbab
cmp ecx, 0x64
jl 0x1400fbb95
mov ecx, r9d
sub ecx, 0xa
je 0x1400fb58b
cmp ecx, 1
jne 0x1400fbb62
mov byte [r15 + 0x498], r9b
cmp dword [rsi + 0x6c], 3
jne 0x1400fb5ad
cmp r9b, 0x14
je 0x1400fb5ad
lea rdx, str.Lying_server__not_serving_HTTP_2
mov rcx, rdi
call fcn.1400edf90
cmp byte [r15 + 0x498], 0x14
jae 0x1400fb6ac
mov rax, qword [r15 + 0x460]
mov dword [rax], 0xffffffff
jmp 0x1400fb6ac
bt ecx, 0x12
jae 0x1400fbbc8
movzx eax, byte [r14]
mov rbx, r14
test al, al
je 0x1400fb5f5
cmp al, 0x20
je 0x1400fb5ea
cmp al, 9
jne 0x1400fb5f5
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x1400fb5e2
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x1400fbbc8
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x1400fbbc1
cmp byte [rbx + 6], 0x2e
jne 0x1400fbbc1
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x1400fbbc1
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x1400fb649
cmp al, 9
jne 0x1400fbbc1
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1400fbbc1
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1400fbbc1
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1400fbbc1
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rsi + 0x50], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1400fb6a4
cmp al, 9
je 0x1400fb6a4
sub al, 0xa
cmp al, 3
ja 0x1400fbbc1
mov byte [r15 + 0x498], 0xb
mov rdx, r15
mov rcx, rdi
call fcn.1400fa7e0
test eax, eax
jne 0x1400fbbec
lea ebx, [rax + 0xc]
mov rcx, rdi
call fcn.1400fc130
test eax, eax
jne 0x1400fbbec
mov r8, r14
mov rdx, r15
mov rcx, rdi
call fcn.1400f9350
test eax, eax
jne 0x1400fbbec
mov eax, dword [rsi + 0x50]
sub eax, 0x64
cmp eax, 0x64
jae 0x1400fb6f6
or ebx, 0x20
lea rcx, [rdi + 0xc80]
call fcn.1400e1b80
mov r9, rax
mov r8, r14
mov edx, 1
mov rcx, rdi
call fcn.1400eddb0
lea rcx, [rdi + 0xc80]
call fcn.1400e1b80
mov r9, rax
mov r8, r14
mov edx, ebx
mov rcx, rdi
call fcn.1400ee490
test eax, eax
jne 0x1400fbbec
lea rcx, [rdi + 0xc80]
call fcn.1400e1b80
mov rdx, rax
xor r8d, r8d
mov rcx, rdi
call fcn.1400f7d80
test eax, eax
jne 0x1400fbbec
lea rcx, [rdi + 0xc80]
call fcn.1400e1ba0
jmp 0x1400fbb0e
mov ecx, dword [rsi + 0x50]
xor r14b, r14b
lea eax, [rcx - 0x64]
cmp eax, 0x63
ja 0x1400fb7ef
sub ecx, 0x64
je 0x1400fb7c7
cmp ecx, 1
je 0x1400fb795
xor eax, eax
mov byte [rsi + 0xcb], 1
mov dword [rsi + 0x44], eax
jmp 0x1400fb862
cmp dword [rsi + 0x6c], 2
jne 0x1400fb7bb
lea rdx, str.Received_101__Switching_to_HTTP_2
mov rcx, rdi
call fcn.1400edf90
mov dword [rsi + 0x6c], 3
mov r14b, 1
mov dword [rsi + 0x44], 0
mov byte [rsi + 0xcb], r14b
jmp 0x1400fb862
xor eax, eax
mov byte [rsi + 0xcb], 1
mov dword [rsi + 0x44], eax
cmp dword [rsi + 0x68], eax
jle 0x1400fb862
or dword [rsi + 0x54], 2
xor edx, edx
mov rcx, rdi
mov dword [rsi + 0x68], eax
call fcn.1400dc0d0
jmp 0x1400fb862
cmp dword [rsi + 0x6c], 2
jne 0x1400fb801
mov rcx, qword [rdi + 0xd8]
call fcn.1400dc1e0
cmp qword [rsi], 0xffffffffffffffff
mov byte [rsi + 0xcb], r14b
jne 0x1400fb862
cmp byte [rsi + 0xd2], r14b
jne 0x1400fb862
cmp byte [r15 + 0x2ae], r14b
jne 0x1400fb862
cmp byte [r15 + 0x498], 0xb
jne 0x1400fb862
mov rax, qword [r15 + 0x2c8]
test dword [rax + 0x84], 0x40000
jne 0x1400fb862
cmp byte [rdi + 0x1382], 5
je 0x1400fb862
lea rdx, str.no_chunk__no_close__no_size._Assume_close_to_signal_end
mov rcx, rdi
call fcn.1400edf90
mov edx, 2
mov rcx, r15
call fcn.1400ef560
cmp byte [rsi + 0xcb], 0
jne 0x1400fb87b
mov rcx, rdi
call fcn.1400fa750
test eax, eax
jne 0x1400fbbec
cmp byte [r15 + 0x2ae], 0
je 0x1400fb8c5
mov eax, dword [rdi + 0x140]
cmp eax, 0x191
jne 0x1400fb89e
cmp dword [r15 + 0x328], 2
je 0x1400fb8af
jmp 0x1400fb8c5
cmp eax, 0x197
jne 0x1400fb8c5
cmp dword [r15 + 0x32c], 2
jne 0x1400fb8c5
lea rdx, str.Connection_closure_while_negotiating_auth__HTTP_1.0__
mov rcx, rdi
call fcn.1400edf90
mov byte [rdi + 0x1389], 1
mov eax, dword [rsi + 0x50]
lea rcx, [rdi + 0xc80]
sub eax, 0x64
mov ebx, 4
cmp eax, 0x64
mov eax, 0x24
cmovb ebx, eax
call fcn.1400e1b80
lea rcx, [rdi + 0xc80]
mov rbp, rax
call fcn.1400e1b90
mov r8, rax
mov r9, rbp
mov edx, ebx
mov rcx, rdi
call fcn.1400ee490
test eax, eax
jne 0x1400fbbec
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.1400f7d80
test eax, eax
jne 0x1400fbbec
mov r8d, dword [rsi + 0x50]
mov rcx, rdi
call fcn.1400fbd00
test al, al
jne 0x1400fbc5a
lea eax, [r8 - 0x64]
cmp eax, 0x63
ja 0x1400fb949
mov eax, dword [rdi + 0x128]
jmp 0x1400fb94b
xor eax, eax
mov dword [rdi + 0x130], eax
call fcn.1400f8360
test eax, eax
jne 0x1400fbbec
cmp dword [rsi + 0x50], 0x12c
jl 0x1400fbae5
cmp byte [r15 + 0x2b8], al
jne 0x1400fbabf
cmp byte [r15 + 0x2ae], al
jne 0x1400fbabf
cmp byte [rdi + 0x1397], al
jne 0x1400fbac8
movzx ecx, byte [rdi + 0x1382]
sub ecx, 1
je 0x1400fb9b0
sub ecx, 1
je 0x1400fb9b0
sub ecx, 1
je 0x1400fb9b0
cmp ecx, 1
jne 0x1400fbabf
xor edx, edx
mov rcx, rdi
call fcn.1400dc0d0
cmp byte [rsi + 0xcf], 0
jne 0x1400fbabf
cmp dword [rsi + 0x50], 0x1a1
jne 0x1400fba52
cmp byte [rdi + 0x138b], 0
je 0x1400fba52
cmp qword [rsi + 0x18], 0
jne 0x1400fb9fb
cmp dword [rsi + 0x68], 1
jne 0x1400fb9fb
lea rdx, str.Got_HTTP_failure_417_while_waiting_for_a_100
mov rcx, rdi
call fcn.1400edf90
jmp 0x1400fba2a
lea rdx, str.Got_HTTP_failure_417_while_sending_data
mov rcx, rdi
call fcn.1400edf90
mov edx, 2
mov rcx, r15
call fcn.1400ef560
mov rdx, r15
mov rcx, rdi
call fcn.1400fb140
test eax, eax
jne 0x1400fbbec
mov rcx, qword [rdi + 0x1228]
mov byte [rdi + 0x138c], 1
call qword [case.0x1400ea102.1]
mov rdx, rsi
mov rcx, rdi
mov qword [rdi + 0x180], rax
call fcn.1400fd230
jmp 0x1400fbabf
cmp byte [rdi + 0xa87], 0
mov rcx, rdi
je 0x1400fba7d
lea rdx, str.HTTP_error_before_end_of_send__keep_sending
call fcn.1400edf90
cmp dword [rsi + 0x68], 0
jle 0x1400fbabf
or dword [rsi + 0x54], 2
mov dword [rsi + 0x68], 0
jmp 0x1400fbabf
lea rdx, str.HTTP_error_before_end_of_send__stop_sending
call fcn.1400edf90
mov edx, 2
mov rcx, r15
call fcn.1400ef560
mov rdx, rsi
mov rcx, rdi
call fcn.1400fd230
test eax, eax
jne 0x1400fbbec
mov byte [rsi + 0xcf], 1
cmp byte [rdi + 0x138b], al
je 0x1400fbabf
mov dword [rsi + 0x68], 3
cmp byte [rdi + 0x1397], 0
je 0x1400fbae5
cmp qword [r15 + 0x2f0], 0xffffffffffffffff
je 0x1400fbae5
lea rdx, str.Keep_sending_data_to_get_tossed_away
mov rcx, rdi
call fcn.1400edf90
or dword [rsi + 0x54], 2
cmp byte [rsi + 0xcb], 0
je 0x1400fbc09
lea rcx, [rdi + 0xc80]
call fcn.1400e1ba0
test r14b, r14b
jne 0x1400fbce9
lea rbp, [rdi + 0xc80]
test r12, r12
je 0x1400fbbcf
mov r14, qword [rsp + 0x68]
jmp 0x1400fb320
mov edx, 2
mov rcx, r15
call fcn.1400ef560
cmp byte [rdi + 0xaa8], 0
je 0x1400fbcda
mov byte [rsi + 0xcb], 0
mov al, 1
jmp 0x1400fbbd1
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.1400edea0
mov eax, 1
jmp 0x1400fbbec
mov eax, 0x66666667
mov rcx, rdi
imul r9d
sar edx, 2
mov eax, edx
shr eax, 0x1f
add edx, eax
mov r8d, edx
lea eax, [rdx + rdx*4]
add eax, eax
lea rdx, str.Unsupported_HTTP_version___u._d__in_response
sub r9d, eax
call fcn.1400edea0
mov eax, 1
jmp 0x1400fbbec
lea rdx, str.Unsupported_response_code_in_HTTP_response
mov rcx, rdi
call fcn.1400edea0
mov eax, 1
jmp 0x1400fbbec
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.1400edea0
mov eax, 1
jmp 0x1400fbbec
mov eax, 8
jmp 0x1400fbbec
mov byte [rsi + 0xcb], 0
xor al, al
cmp byte [rsi + 0xcb], 0
jne 0x1400fbbea
test al, al
jne 0x1400fbbea
lea rcx, [rdi + 0xc80]
call fcn.1400e1b30
xor eax, eax
mov rbx, qword [rsp + 0x50]
mov rbp, qword [rsp + 0x58]
mov rsi, qword [rsp + 0x60]
add rsp, 0x20
pop r15
pop r14
pop r13
pop r12
pop rdi
ret
cmp byte [rdi + 0x1c7], 0
je 0x1400fbc19
mov byte [rsi + 0xcd], 1
cmp qword [rsi + 8], 0
jne 0x1400fbc27
mov byte [rsi + 0xcd], 1
lea rcx, [rdi + 0xc80]
call fcn.1400e1b80
lea rcx, [rdi + 0xc80]
mov rbx, rax
call fcn.1400e1b90
mov r8, rax
mov r9, rbx
mov edx, 1
mov rcx, rdi
call fcn.1400eddb0
jmp 0x1400fbbcf
lea rdx, str.The_requested_URL_returned_error:__d
call fcn.1400edea0
mov eax, reloc.WS2_32.dll_shutdown
jmp 0x1400fbbec
mov r8, r12
call fcn.1400e1b20
test eax, eax
jne 0x1400fbbec
add qword [r14], r12
cmp dword [rsi + 0x44], eax
jne 0x1400fbbcf
mov rcx, rbp
call fcn.1400e1b80
mov rcx, rbp
mov rbx, rax
call fcn.1400e1b90
mov r8, rax
mov r9, rbx
mov rdx, r15
mov rcx, rdi
call fcn.1400fae20
cmp eax, 2
jne 0x1400fbbcf
mov edx, eax
mov byte [rsi + 0xcb], 0
mov rcx, r15
call fcn.1400ef560
cmp byte [rdi + 0xaa8], 0
je 0x1400fbcda
mov al, 1
jmp 0x1400fbbd1
lea rdx, str.Received_HTTP_0.9_when_not_allowed
mov rcx, rdi
call fcn.1400edea0
mov eax, 1
jmp 0x1400fbbec