Function at 0x140107820
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 0x140107d96
cmp al, 0xd
je 0x140107d96
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 0x140107cb1
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x140107a4e
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x1401078cc
cmp al, 0x20
je 0x1401078c1
cmp byte [rbx], 9
jne 0x1401078cc
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x1401078b8
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 0x140107986
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x1401079b6
sub ecx, r15d
je 0x14010791a
cmp ecx, r15d
je 0x14010791a
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.1400f4650
mov eax, r15d
jmp 0x140107e1f
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x140107926
cmp al, 9
jne 0x140107986
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 0x140107986
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140107986
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140107986
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 0x140107b32
sub al, 9
cmp al, 4
jbe 0x140107b32
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140106a20
cmp eax, r15d
jne 0x140107cdc
mov dword [rdi + 0x14c], reloc.WLDAP32.dll_Ordinal_200
mov dword [rdi + 0x148], 0xa
jmp 0x140107b32
cmp byte [rbx + 6], 0x2e
jne 0x140107a37
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x140107a37
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x1401079d4
cmp al, 9
jne 0x140107a37
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140107a37
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140107a37
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140107a37
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 0x140107b32
cmp al, 9
je 0x140107b32
sub al, 0xa
cmp al, 3
jbe 0x140107b32
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.1400f4650
mov eax, r15d
jmp 0x140107e1f
bt eax, 0x12
jae 0x140107cdc
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x140107a76
cmp al, 0x20
je 0x140107a6b
cmp byte [rbx], 9
jne 0x140107a76
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140107a62
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 0x140107cdc
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x140107ce3
cmp byte [rbx + 6], 0x2e
jne 0x140107ce3
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x140107ce3
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140107aca
cmp al, 9
jne 0x140107ce3
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140107ce3
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140107ce3
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140107ce3
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 0x140107b28
cmp al, 9
je 0x140107b28
sub al, 0xa
cmp al, 3
ja 0x140107ce3
mov dword [rdi + 0x148], send
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x140107b82
cmp ecx, r15d
je 0x140107b82
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.1400f4650
mov eax, r15d
jmp 0x140107e1f
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x140107bd1
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 0x140107bd1
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.1400f4650
mov eax, r15d
jmp 0x140107e1f
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 0x140107c09
cmp eax, dword [rdi + 0x148]
jle 0x140107c16
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1319], al
cmp qword [rdi + 0x1120], r12
je 0x140107c3b
cmp byte [rdi + 0x131a], r12b
jne 0x140107c3b
cmp dword [rdi + 0x14c], 0x1a0
jne 0x140107c3b
mov byte [rdi + 0x1e2], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x140107c5e
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.1400f4740
mov edx, r15d
mov rcx, rbx
call fcn.1400f7470
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e3], al
sub ecx, 0xcc
je 0x140107c90
cmp ecx, 0x64
jne 0x140107ca5
cmp byte [rdi + 0x538], r12b
je 0x140107c90
mov byte [rdi + 0x1414], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e3], r15b
mov ebx, recv
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x140107ced
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.1400f4650
jmp 0x140107e1d
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x140107e1f
mov ecx, dword [r14]
cmp ecx, 2
jl 0x140107d33
movzx eax, byte [rsi]
cmp al, 0x20
je 0x140107d00
cmp al, 9
jne 0x140107d05
cmp ecx, 2
jg 0x140107d33
mov r8, rbp
mov edx, Ordinal_60
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x140107d33
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.1400f4650
jmp 0x140107e1d
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140104e30
test eax, eax
jne 0x140107e1f
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.1400f4560
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x140107d6b
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.1400f5b40
test eax, eax
jne 0x140107e1f
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.140104330
jmp 0x140107e1f
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.1400ddca0
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.1400ddc60
test eax, eax
jne 0x140107e1f
lea rcx, [rdi + 0xc58]
call fcn.1400ddce0
lea rcx, [rsp + 0x30]
call fcn.1400ddcc0
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.1400ddcd0
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.140106b60
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.1400ddc70
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