Function at 0x14003da00
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x18], r8
mov qword [rsp + 0x10], rdx
push rbp
push rsi
push rdi
push r12
push r13
push r14
push r15
mov rbp, rsp
sub rsp, 0x70
movaps xmmword [rsp + 0x60], xmm6
movaps xmmword [rsp + 0x50], xmm7
mov r13, rcx
movups xmm0, xmmword [rdx]
movups xmmword [rbp - 0x40], xmm0
movsd xmm7, qword [rdx + 0x10]
movsd qword [rbp - 0x30], xmm7
mov qword [rbp - 0x28], rdx
movq r8, xmm0
mov rax, r8
mov r12, qword [rbp - 0x30]
sub rax, r12
mov qword [rbp - 0x48], rax
xorps xmm6, xmm6
xorps xmm1, xmm1
cmp byte [r8], 0x2d
jne 0x14003da6e
inc r8
mov qword [rbp - 0x40], r8
mov r10b, 1
jmp 0x14003da71
xor r10b, r10b
mov byte [rbp - 0x50], r10b
xor ebx, ebx
mov edi, ebx
xor r9b, r9b
mov byte [rbp + 0x58], r9b
mov r11d, ebx
movsx ecx, byte [r8]
cmp cl, 0x30
jne 0x14003da9b
mov esi, ebx
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
jmp 0x14003db56
lea eax, [rcx - 0x31]
cmp al, 8
ja 0x14003e188
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
lea esi, [rcx - 0x30]
movzx eax, byte [rdx]
test r10b, r10b
je 0x14003db07
cmp al, 0x30
jl 0x14003db56
mov r8, rdx
mov rcx, rdx
cmp al, 0x39
ja 0x14003db56
cmp esi, 0xccccccc
jb 0x14003dae0
jne 0x14003db4d
mov r8, rcx
cmp al, 0x38
ja 0x14003db4d
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
lea ecx, [rsi - 6]
lea ecx, [rsi + rcx*4]
movsx eax, byte [r8]
lea esi, [rax + rcx*2]
inc r11d
movzx eax, byte [rdx]
mov r8, rdx
mov rcx, rdx
cmp al, 0x30
jge 0x14003dac7
jmp 0x14003db56
cmp al, 0x30
jl 0x14003db56
mov r8, rdx
mov rcx, rdx
cmp al, 0x39
jg 0x14003db56
cmp esi, 0x19999999
jb 0x14003db26
jne 0x14003db4d
mov r8, rcx
cmp al, 0x35
jg 0x14003db4d
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
lea ecx, [rsi - 6]
lea ecx, [rsi + rcx*4]
movsx eax, byte [r8]
lea esi, [rax + rcx*2]
inc r11d
movzx eax, byte [rdx]
mov r8, rdx
mov rcx, rdx
cmp al, 0x30
jge 0x14003db11
jmp 0x14003db56
mov r9b, 1
mov byte [rbp + 0x58], r9b
mov edi, esi
xor r15b, r15b
movsd xmm2, qword [0x1400dfbb8]
test r9b, r9b
je 0x14003dcb4
test r10b, r10b
je 0x14003dbed
movzx ecx, byte [rdx]
cmp cl, 0x30
jl 0x14003dcb4
mov r8, rdx
mov r9, rdx
movabs r10, 0xccccccccccccccc
nop dword [rax + rax]
cmp cl, 0x39
ja 0x14003dcaf
cmp rdi, r10
jb 0x14003dba8
jne 0x14003dbd5
mov r8, r9
cmp cl, 0x38
ja 0x14003dbd5
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
movsx ecx, byte [r8]
sub ecx, 0x30
lea rax, [rdi + rdi*4]
lea rdi, [rcx + rax*2]
inc r11d
mov r8, rdx
mov r9, rdx
movzx ecx, byte [rdx]
cmp cl, 0x30
jge 0x14003db90
jmp 0x14003dcaf
mov rcx, rdi
mov r15b, 1
xorps xmm1, xmm1
test rcx, rcx
js 0x14003dc59
cvtsi2sd xmm1, rcx
jmp 0x14003dc6e
movzx r8d, byte [rdx]
cmp r8b, 0x30
jl 0x14003dcb4
mov r9, rdx
mov r10, rdx
movabs r14, 0x1999999999999999
nop dword [rax + rax]
mov rcx, rdi
cmp r8b, 0x39
ja 0x14003dcaf
cmp rdi, r14
jb 0x14003dc2d
jne 0x14003dbd8
mov r9, r10
cmp r8b, 0x35
ja 0x14003dbd8
lea rdx, [r9 + 1]
mov qword [rbp - 0x40], rdx
movsx ecx, byte [r9]
sub ecx, 0x30
lea rax, [rdi + rdi*4]
lea rdi, [rcx + rax*2]
inc r11d
mov r9, rdx
mov r10, rdx
movzx r8d, byte [rdx]
cmp r8b, 0x30
jge 0x14003dc10
jmp 0x14003dcaf
mov rax, rcx
shr rax, 1
and ecx, 1
or rax, rcx
cvtsi2sd xmm1, rax
addsd xmm1, xmm1
movzx ecx, byte [rdx]
cmp cl, 0x30
jl 0x14003dcaf
mov r8, rdx
nop dword [rax]
cmp cl, 0x39
ja 0x14003dcaf
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
movsx eax, byte [r8]
sub eax, 0x30
movd xmm0, eax
cvtdq2pd xmm0, xmm0
mulsd xmm1, xmm2
addsd xmm1, xmm0
mov r8, rdx
movzx ecx, byte [rdx]
cmp cl, 0x30
jge 0x14003dc80
movzx r9d, byte [rbp + 0x58]
mov r14d, ebx
cmp byte [rdx], 0x2e
jne 0x14003dddc
lea r8, [rdx + 1]
mov qword [rbp - 0x40], r8
movzx ecx, byte [r8]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14003de14
mov rdx, r8
test r15b, r15b
jne 0x14003dd6b
test r9b, r9b
jne 0x14003dcea
mov edi, esi
mov rcx, r8
mov r9, r8
movzx eax, byte [r8]
movabs r10, 0x1fffffffffffff
nop
cmp al, 0x39
jg 0x14003dd3e
mov rdx, r9
cmp rdi, r10
ja 0x14003dd3e
lea r8, [rcx + 1]
mov rdx, r8
mov qword [rbp - 0x40], r8
movsx ecx, byte [rcx]
sub ecx, 0x30
lea rax, [rdi + rdi*4]
lea rdi, [rcx + rax*2]
dec r14d
test rdi, rdi
je 0x14003dd30
inc r11d
movzx eax, byte [r8]
mov rcx, r8
mov r9, rdx
cmp al, 0x30
jge 0x14003dd00
xorps xmm1, xmm1
test rdi, rdi
js 0x14003dd4d
cvtsi2sd xmm1, rdi
jmp 0x14003dd65
mov rcx, rdi
shr rcx, 1
mov rax, rdi
and eax, 1
or rcx, rax
cvtsi2sd xmm1, rcx
addsd xmm1, xmm1
mov r15b, 1
movzx ecx, byte [rdx]
cmp cl, 0x30
jl 0x14003dddc
mov rax, rdx
mov r10, rdx
mov r9, rdx
movzx ecx, byte [r8]
nop dword [rax]
mov rdx, r9
cmp cl, 0x39
jg 0x14003dddc
cmp r11d, 0x11
jge 0x14003ddc0
lea rdx, [rax + 1]
mov rcx, rdx
mov qword [rbp - 0x40], rdx
movsx eax, byte [rax]
sub eax, 0x30
movd xmm0, eax
cvtdq2pd xmm0, xmm0
mulsd xmm1, xmm2
addsd xmm0, xmm1
movaps xmm1, xmm0
dec r14d
comisd xmm0, xmm6
jbe 0x14003ddcb
inc r11d
jmp 0x14003ddcb
lea rdx, [r10 + 1]
mov rcx, rdx
mov qword [rbp - 0x40], rdx
mov rax, rdx
movzx ecx, byte [rcx]
mov r10, rdx
mov r9, rdx
cmp cl, 0x30
jge 0x14003dd80
cmp byte [rdx], 0x65
je 0x14003ddea
cmp byte [rdx], 0x45
jne 0x14003df41
inc rdx
mov qword [rbp - 0x40], rdx
movzx r11d, byte [rbp + 0x58]
test r15b, r15b
jne 0x14003de36
test r11b, r11b
mov rcx, rdi
jne 0x14003de05
mov ecx, esi
xorps xmm1, xmm1
test rcx, rcx
js 0x14003de1e
cvtsi2sd xmm1, rcx
jmp 0x14003de33
mov edx, reloc.WS2_32.dll_ntohl
jmp 0x14003e18d
mov rax, rcx
shr rax, 1
and ecx, 1
or rax, rcx
cvtsi2sd xmm1, rax
addsd xmm1, xmm1
mov r15b, 1
xor r10b, r10b
movzx ecx, byte [rdx]
cmp cl, 0x2b
je 0x14003de49
cmp cl, 0x2d
jne 0x14003de53
mov r10b, 1
inc rdx
movzx ecx, byte [rdx]
mov qword [rbp - 0x40], rdx
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14003df2d
lea r8, [rdx + 1]
mov qword [rbp - 0x40], r8
movsx ebx, cl
sub ebx, 0x30
movzx r9d, byte [r8]
test r10b, r10b
je 0x14003def5
lea ecx, [r14 + 0x7ffffff7]
mov eax, 0x66666667
imul ecx
mov r10d, edx
sar r10d, 2
mov eax, r10d
shr eax, 0x1f
add r10d, eax
cmp r9b, 0x30
jl 0x14003def1
movzx eax, r9b
cmp al, 0x39
jg 0x14003def1
lea rdx, [r8 + 1]
mov qword [rbp - 0x40], rdx
lea ebx, [rbx + rbx*4]
movsx eax, byte [r8]
lea ebx, [rbx - 0x18]
lea ebx, [rax + rbx*2]
mov r8, rdx
cmp ebx, r10d
jle 0x14003deea
movzx eax, byte [rdx]
cmp al, 0x30
jl 0x14003deea
mov rcx, rdx
nop dword [rax]
cmp al, 0x39
ja 0x14003dee6
lea r8, [rcx + 1]
mov rdx, r8
movzx eax, byte [r8]
mov rcx, r8
cmp al, 0x30
jge 0x14003ded0
mov qword [rbp - 0x40], rdx
movzx eax, byte [rdx]
cmp al, 0x30
jge 0x14003dea1
neg ebx
jmp 0x14003df46
mov edx, 0x134
sub edx, r14d
cmp r9b, 0x30
jl 0x14003df46
movzx eax, r9b
cmp al, 0x39
jg 0x14003df46
movsx eax, byte [r8]
inc r8
mov qword [rbp - 0x40], r8
lea ebx, [rbx + rbx*4]
lea ebx, [rbx - 0x18]
lea ebx, [rax + rbx*2]
cmp ebx, edx
jg 0x14003df96
movzx eax, byte [r8]
cmp al, 0x30
jge 0x14003df07
jmp 0x14003df46
sub rdx, r12
mov dword [r13 + 0x30], reloc.WS2_32.dll_ntohs
mov qword [r13 + 0x38], rdx
jmp 0x14003e1a6
movzx r11d, byte [rbp + 0x58]
test r15b, r15b
je 0x14003e015
lea ecx, [rbx + r14]
cmp ecx, 0xfffffecc
jge 0x14003dfab
divsd xmm1, qword [0x1400dfc88]
lea eax, [rcx + 0x134]
cmp eax, 0xfffffecc
jl 0x14003df8c
movsxd rax, ecx
lea rax, [rax*8 + 0x9a0]
lea rcx, [0x1400dbce0]
sub rcx, rax
movaps xmm6, xmm1
divsd xmm6, qword [rcx]
comisd xmm6, xmmword [0x1400dfc90]
jbe 0x14003dfcc
mov dword [r13 + 0x30], reloc.WS2_32.dll_listen
mov rax, qword [rbp - 0x48]
mov qword [r13 + 0x38], rax
jmp 0x14003e1a6
movsxd rax, ecx
lea rax, [rax*8]
test ecx, ecx
js 0x14003df7b
lea rcx, [0x1400dbce0]
movsd xmm6, qword [rax + rcx]
mulsd xmm6, xmm1
jmp 0x14003df8c
cmp byte [rbp - 0x50], 0
je 0x14003dfd9
xorps xmm6, xmmword [0x1400e0060]
mov rbx, qword [rbp + 0x50]
mov rax, qword [rbx + 0x40]
sub rax, qword [rbx + 0x38]
cmp rax, 0x10
jge 0x14003dff4
lea rcx, [rbx + 0x20]
call fcn.14003e330
mov rcx, qword [rbx + 0x38]
lea rax, [rcx + 0x10]
mov qword [rbx + 0x38], rax
xorps xmm0, xmm0
movups xmmword [rcx], xmm0
movsd qword [rcx], xmm6
mov word [rcx + 0xe], 0x216
jmp 0x14003e1a6
mov rbx, qword [rbp + 0x50]
add rbx, 0x20
mov rax, qword [rbx + 0x20]
sub rax, qword [rbx + 0x18]
test r11b, r11b
je 0x14003e107
cmp byte [rbp - 0x50], 0
je 0x14003e09c
neg rdi
cmp rax, 0x10
jge 0x14003e045
mov rcx, rbx
call fcn.14003e330
mov rcx, qword [rbx + 0x18]
lea rax, [rcx + 0x10]
mov qword [rbx + 0x18], rax
xorps xmm0, xmm0
movups xmmword [rcx], xmm0
mov qword [rcx], rdi
mov word [rcx + 0xe], __WSAFDIsSet
test rdi, rdi
js 0x14003e084
mov eax, 0x196
mov word [rcx + 0xe], ax
movabs rdx, 0xffffffff00000000
test rdx, rdi
jne 0x14003e0ed
mov eax, 0x1d6
jmp 0x14003e0e9
cmp rdi, 0xffffffff80000000
jl 0x14003e1a6
mov word [rcx + 0xe], 0xb6
jmp 0x14003e1a6
cmp rax, 0x10
jge 0x14003e0aa
mov rcx, rbx
call fcn.14003e330
mov rcx, qword [rbx + 0x18]
lea rax, [rcx + 0x10]
mov qword [rbx + 0x18], rax
xorps xmm0, xmm0
movups xmmword [rcx], xmm0
mov qword [rcx], rdi
mov eax, 0x116
mov word [rcx + 0xe], ax
test rdi, rdi
js 0x14003e0d6
mov eax, 0x196
mov word [rcx + 0xe], ax
movabs rdx, 0xffffffff00000000
test rdx, rdi
jne 0x14003e0ed
or ax, 0x40
mov word [rcx + 0xe], ax
test rdi, 0xffffffff80000000
jne 0x14003e1a6
or ax, 0x20
mov word [rcx + 0xe], ax
jmp 0x14003e1a6
cmp byte [rbp - 0x50], 0
je 0x14003e14b
neg esi
cmp rax, 0x10
jge 0x14003e11d
mov rcx, rbx
call fcn.14003e330
mov rcx, qword [rbx + 0x18]
lea rax, [rcx + 0x10]
mov qword [rbx + 0x18], rax
xorps xmm0, xmm0
movups xmmword [rcx], xmm0
movsxd rax, esi
mov qword [rcx], rax
mov eax, 0xb6
mov edx, 0x1f6
test esi, esi
cmovns ax, dx
mov word [rcx + 0xe], ax
jmp 0x14003e1a6
cmp rax, 0x10
jge 0x14003e159
mov rcx, rbx
call fcn.14003e330
mov rcx, qword [rbx + 0x18]
lea rax, [rcx + 0x10]
mov qword [rbx + 0x18], rax
xorps xmm0, xmm0
movups xmmword [rcx], xmm0
mov eax, esi
mov qword [rcx], rax
shr esi, 0x1a
not si
and si, 0x20
mov eax, 0x1d6
or si, ax
mov word [rcx + 0xe], si
jmp 0x14003e1a6
mov edx, 3
mov ecx, Ordinal_50
mov eax, Ordinal_60
mov r9, r13
sub r8, r12
mov dword [rcx + r13], edx
mov qword [r13 + rax], r8
movups xmm0, xmmword [rbp - 0x40]
mov rax, qword [rbp + 0x48]
movups xmmword [rax], xmm0
movsd qword [rax + 0x10], xmm7
mov rbx, qword [rsp + 0xb0]
movaps xmm6, xmmword [rsp + 0x60]
movaps xmm7, xmmword [rsp + 0x50]
add rsp, 0x70
pop r15
pop r14
pop r13
pop r12
pop rdi
pop rsi
pop rbp
ret