Function at 0x1400565d0
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], rdi
push r12
push r14
push r15
sub rsp, 0x50
mov r14, qword [rsp + 0x98]
xor r12d, r12d
mov r15, r9
mov rbp, r8
mov rsi, rdx
mov rdi, rcx
mov qword [r14], r12
movzx eax, byte [rdx]
cmp al, 0xa
je 0x140056b46
cmp al, 0xd
je 0x140056b46
lea r14, [rcx + 0x13c]
mov ebx, 4
mov ecx, dword [r14]
mov r15d, 1
lea eax, [rcx + 1]
mov dword [r14], eax
test ecx, ecx
jne 0x140056a61
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x1400567fe
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x14005667c
cmp al, 0x20
je 0x140056671
cmp byte [rbx], 9
jne 0x14005667c
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140056668
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 0x140056736
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x140056766
sub ecx, r15d
je 0x1400566ca
cmp ecx, r15d
je 0x1400566ca
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.1400433a0
mov eax, r15d
jmp 0x140056bcf
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x1400566d6
cmp al, 9
jne 0x140056736
lea eax, [rdx - 0x30]
lea ecx, [rax + rax*4]
add ecx, ecx
mov dword [rdi + 0x148], ecx
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140056736
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140056736
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140056736
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 [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xa]
cmp al, 0x20
je 0x1400568e2
sub al, 9
cmp al, 4
jbe 0x1400568e2
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.1400557d0
cmp eax, r15d
jne 0x140056a8c
mov dword [rdi + 0x14c], reloc.WLDAP32.dll_Ordinal_200
mov dword [rdi + 0x148], 0xa
jmp 0x1400568e2
cmp byte [rbx + 6], 0x2e
jne 0x1400567e7
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x1400567e7
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140056784
cmp al, 9
jne 0x1400567e7
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1400567e7
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1400567e7
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1400567e7
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 [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1400568e2
cmp al, 9
je 0x1400568e2
sub al, 0xa
cmp al, 3
jbe 0x1400568e2
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.1400433a0
mov eax, r15d
jmp 0x140056bcf
bt eax, 0x12
jae 0x140056a8c
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x140056826
cmp al, 0x20
je 0x14005681b
cmp byte [rbx], 9
jne 0x140056826
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140056812
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 0x140056a8c
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x140056a93
cmp byte [rbx + 6], 0x2e
jne 0x140056a93
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x140056a93
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14005687a
cmp al, 9
jne 0x140056a93
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140056a93
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140056a93
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140056a93
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 [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1400568d8
cmp al, 9
je 0x1400568d8
sub al, 0xa
cmp al, 3
ja 0x140056a93
mov dword [rdi + 0x148], ntohs
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x140056932
cmp ecx, r15d
je 0x140056932
mov eax, 0x66666667
mov rcx, rdi
imul r9d
mov r8d, edx
lea rdx, str.Unsupported_HTTP_version___u._d__in_response
sar r8d, 2
mov eax, r8d
shr eax, 0x1f
add r8d, eax
lea eax, [r8 + r8*4]
add eax, eax
sub r9d, eax
call fcn.1400433a0
mov eax, r15d
jmp 0x140056bcf
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x140056981
mov ecx, eax
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
mov r8d, edx
imul r9d
shr r8d, 3
mov r9d, edx
sar r9d, 2
mov eax, r9d
shr eax, 0x1f
add r9d, eax
cmp r9d, r8d
je 0x140056981
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.1400433a0
mov eax, r15d
jmp 0x140056bcf
mov eax, dword [rdi + 0x14c]
mov dword [rdi + 0x1338], eax
mov eax, dword [rdi + 0x148]
mov dword [rdi + 0x1340], eax
movzx eax, byte [rdi + 0x148]
mov byte [rbx + 0x7e0], al
movzx eax, byte [rdi + 0x1319]
test al, al
je 0x1400569b9
cmp eax, dword [rdi + 0x148]
jle 0x1400569c6
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1319], al
cmp qword [rdi + 0x1120], r12
je 0x1400569eb
cmp byte [rdi + 0x131a], r12b
jne 0x1400569eb
cmp dword [rdi + 0x14c], 0x1a0
jne 0x1400569eb
mov byte [rdi + 0x1e2], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x140056a0e
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.140043490
mov edx, r15d
mov rcx, rbx
call fcn.1400461c0
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e3], al
sub ecx, 0xcc
je 0x140056a40
cmp ecx, 0x64
jne 0x140056a55
cmp byte [rdi + 0x538], r12b
je 0x140056a40
mov byte [rdi + 0x1414], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e3], r15b
mov ebx, ntohs
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x140056a9d
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.1400433a0
jmp 0x140056bcd
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x140056bcf
mov ecx, dword [r14]
cmp ecx, 2
jl 0x140056ae3
movzx eax, byte [rsi]
cmp al, 0x20
je 0x140056ab0
cmp al, 9
jne 0x140056ab5
cmp ecx, 2
jg 0x140056ae3
mov r8, rbp
mov edx, Ordinal_60
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x140056ae3
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.1400433a0
jmp 0x140056bcd
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140053be0
test eax, eax
jne 0x140056bcf
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.1400432b0
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x140056b1b
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.140044890
test eax, eax
jne 0x140056bcf
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.1400530e0
jmp 0x140056bcf
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.14002c9f0
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.14002c9b0
test eax, eax
jne 0x140056bcf
lea rcx, [rdi + 0xc58]
call fcn.14002ca30
lea rcx, [rsp + 0x30]
call fcn.14002ca10
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.14002ca20
mov rcx, qword [rsp + 0x90]
mov rdx, rax
lea rax, [rsp + 0x98]
mov r9, r15
mov qword [rsp + 0x28], rax
mov r8, rbx
mov qword [rsp + 0x20], rcx
mov rcx, rdi
call fcn.140055910
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.14002c9c0
mov eax, ebx
lea r11, [rsp + 0x50]
mov rbx, qword [r11 + 0x20]
mov rbp, qword [r11 + 0x28]
mov rsi, qword [r11 + 0x30]
mov rdi, qword [r11 + 0x38]
mov rsp, r11
pop r15
pop r14
pop r12
ret