Function at 0x140097f40
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 0x18], r8
mov qword [rsp + 8], rcx
push rbx
push rbp
push rsi
push rdi
push r13
push r15
sub rsp, 0x78
mov rbx, rdx
movaps xmmword [rsp + 0x50], xmm6
mov rdx, qword [rdx + 0x28]
xorps xmm6, xmm6
movaps xmmword [rsp + 0x40], xmm7
movaps xmmword [rsp + 0x30], xmm8
xorps xmm8, xmm8
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
movzx edi, byte [rdx]
add rax, rdx
mov qword [rsp + 0x20], rax
cmp dil, 0x2d
jne 0x140097fa9
mov rcx, rbx
call fcn.140095a30
mov rdx, qword [rbx + 0x28]
mov r13b, 1
mov rcx, qword [rsp + 0xb0]
movzx edi, byte [rdx]
jmp 0x140097fac
xor r13b, r13b
movsd xmm7, qword [0x14045b458]
xor ebp, ebp
mov qword [rsp + 0x70], r12
mov esi, ebp
mov byte [rsp + 0xb8], sil
mov r15d, ebp
mov byte [rsp + 0xc8], r13b
mov qword [rsp + 0x68], r14
cmp dil, 0x30
jne 0x140097ff2
mov rcx, rbx
mov r14d, ebp
call fcn.140095a30
mov rcx, qword [rbx + 0x28]
xor r12b, r12b
jmp 0x1400981fb
lea eax, [rdi - 0x31]
cmp al, 8
ja 0x140098589
mov rcx, rbx
call fcn.140095a30
mov rax, qword [rbx + 0x28]
movsx r14d, dil
sub r14d, 0x30
movzx edi, byte [rax]
test r13b, r13b
je 0x140098068
cmp dil, 0x30
jl 0x1400980bc
cmp dil, 0x39
jg 0x1400980bc
cmp r14d, 0xccccccc
jb 0x14009803e
jne 0x1400980b1
cmp dil, 0x38
jg 0x1400980b1
mov rcx, rbx
call fcn.140095a30
movsx eax, dil
lea r14d, [r14 + r14*4]
lea r14d, [r14 - 0x18]
inc r15d
lea r14d, [rax + r14*2]
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x140098023
jmp 0x1400980bc
cmp dil, 0x30
jl 0x1400980bc
nop
cmp dil, 0x39
jg 0x1400980bc
cmp r14d, 0x19999999
jb 0x140098087
jne 0x1400980b1
cmp dil, 0x35
jg 0x1400980b1
mov rcx, rbx
call fcn.140095a30
movsx eax, dil
lea r14d, [r14 + r14*4]
lea r14d, [r14 - 0x18]
inc r15d
lea r14d, [rax + r14*2]
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x140098070
jmp 0x1400980bc
mov byte [rsp + 0xb8], 1
mov esi, r14d
xor r12b, r12b
mov rdx, rax
cmp byte [rsp + 0xb8], bpl
je 0x1400981a8
movzx ecx, byte [rax]
test r13b, r13b
je 0x140098130
cmp cl, 0x30
jl 0x1400981a8
movzx edi, cl
movabs r13, 0xccccccccccccccc
nop
cmp dil, 0x39
jg 0x1400981a8
cmp rsi, r13
jb 0x140098107
jne 0x14009817e
cmp dil, 0x38
jg 0x14009817e
mov rcx, rbx
call fcn.140095a30
mov rdx, qword [rbx + 0x28]
lea rax, [rsi + rsi*4]
movsx ecx, dil
inc r15d
sub ecx, 0x30
movzx edi, byte [rdx]
lea rsi, [rcx + rax*2]
cmp dil, 0x30
jge 0x1400980f0
jmp 0x1400981a8
cmp cl, 0x30
jl 0x1400981a8
movzx edi, cl
movabs r13, 0x1999999999999999
cmp dil, 0x39
jg 0x1400981a8
cmp rsi, r13
jb 0x140098155
jne 0x14009817e
cmp dil, 0x35
jg 0x14009817e
mov rcx, rbx
call fcn.140095a30
mov rdx, qword [rbx + 0x28]
lea rax, [rsi + rsi*4]
movsx ecx, dil
inc r15d
sub ecx, 0x30
movzx edi, byte [rdx]
lea rsi, [rcx + rax*2]
cmp dil, 0x30
jge 0x140098142
jmp 0x1400981a8
xorps xmm6, xmm6
test rsi, rsi
js 0x14009818d
cvtsi2sd xmm6, rsi
jmp 0x1400981a5
mov rax, rsi
mov rcx, rsi
and eax, 1
shr rcx, 1
or rcx, rax
cvtsi2sd xmm6, rcx
addsd xmm6, xmm6
mov r12b, 1
mov rcx, rdx
test r12b, r12b
je 0x1400981fb
cmp byte [rdx], 0x30
jl 0x1400981fb
movzx edi, byte [rdx]
nop dword [rax + rax]
mov rcx, rdx
cmp dil, 0x39
jg 0x1400981fb
mov rcx, rbx
call fcn.140095a30
mov rcx, qword [rbx + 0x28]
movsx eax, dil
mov rdx, rcx
sub eax, 0x30
mulsd xmm6, xmm7
movzx edi, byte [rcx]
movd xmm0, eax
cvtdq2pd xmm0, xmm0
addsd xmm0, xmm6
movaps xmm6, xmm0
cmp dil, 0x30
jge 0x1400981c0
cmp byte [rcx], 0x2e
mov r13d, ebp
jne 0x140098330
mov rcx, rbx
call fcn.140095a30
mov rcx, qword [rbx + 0x28]
movzx edi, byte [rcx]
lea eax, [rdi - 0x30]
cmp al, 9
jbe 0x140098240
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
mov rdx, qword [rsp + 0xb0]
add rax, rcx
mov qword [rdx + 0x38], rax
mov dword [rdx + 0x30], send
jmp 0x14009859c
test r12b, r12b
jne 0x1400982dc
cmp byte [rsp + 0xb8], bpl
movabs r12, 0x1fffffffffffff
mov eax, r14d
cmovne rax, rsi
mov rsi, rax
mov rdx, rcx
cmp dil, 0x39
jg 0x1400982ab
cmp rsi, r12
ja 0x1400982ab
mov rcx, rbx
call fcn.140095a30
movsx ecx, dil
lea rax, [rsi + rsi*4]
sub ecx, 0x30
dec r13d
lea rsi, [rcx + rax*2]
mov rcx, qword [rbx + 0x28]
test rsi, rsi
lea eax, [r15 + 1]
mov rdx, rcx
cmove eax, r15d
movzx edi, byte [rcx]
mov r15d, eax
cmp dil, 0x30
jge 0x140098265
xorps xmm6, xmm6
test rsi, rsi
js 0x1400982ba
cvtsi2sd xmm6, rsi
jmp 0x1400982d2
mov rax, rsi
mov rcx, rsi
shr rcx, 1
and eax, 1
or rcx, rax
cvtsi2sd xmm6, rcx
addsd xmm6, xmm6
movzx edi, byte [rdx]
mov r12b, 1
mov rcx, qword [rbx + 0x28]
cmp dil, 0x30
jl 0x140098330
cmp dil, 0x39
jg 0x140098330
cmp r15d, 0x11
jge 0x14009831b
mulsd xmm6, xmm7
dec r13d
movsx eax, dil
sub eax, 0x30
movd xmm0, eax
lea eax, [r15 + 1]
cvtdq2pd xmm0, xmm0
addsd xmm0, xmm6
comisd xmm0, xmm8
movaps xmm6, xmm0
cmovbe eax, r15d
mov r15d, eax
mov rcx, rbx
call fcn.140095a30
mov rcx, qword [rbx + 0x28]
movzx edi, byte [rcx]
cmp dil, 0x30
jge 0x1400982e2
movzx eax, byte [rcx]
sub al, 0x45
test al, 0xdf
jne 0x140098458
mov rcx, rbx
call fcn.140095a30
test r12b, r12b
jne 0x140098383
cmp byte [rsp + 0xb8], bpl
mov rcx, rsi
mov eax, r14d
xorps xmm6, xmm6
cmove rcx, rax
test rcx, rcx
js 0x14009836b
cvtsi2sd xmm6, rcx
jmp 0x140098380
mov rax, rcx
and ecx, 1
shr rax, 1
or rax, rcx
cvtsi2sd xmm6, rax
addsd xmm6, xmm6
mov r12b, 1
mov rcx, qword [rbx + 0x28]
xor r15b, r15b
movzx edi, byte [rcx]
cmp dil, 0x2b
jne 0x14009839d
mov rcx, rbx
call fcn.140095a30
jmp 0x1400983ae
cmp dil, 0x2d
jne 0x1400983b5
mov rcx, rbx
call fcn.140095a30
mov r15b, 1
mov rcx, qword [rbx + 0x28]
movzx edi, byte [rcx]
lea eax, [rdi - 0x30]
cmp al, 9
ja 0x1400984d4
mov rcx, rbx
call fcn.140095a30
mov rax, qword [rbx + 0x28]
movsx ebp, dil
sub ebp, 0x30
movzx edi, byte [rax]
test r15b, r15b
je 0x140098495
lea ecx, [r13 + 0x7ffffff7]
mov eax, 0x66666667
imul ecx
mov r15d, edx
sar r15d, 2
mov eax, r15d
shr eax, 0x1f
add r15d, eax
cmp dil, 0x30
jl 0x140098456
cmp dil, 0x39
jg 0x140098456
mov rcx, rbx
call fcn.140095a30
lea ebp, [rbp + rbp*4]
movsx eax, dil
lea ebp, [rbp - 0x18]
lea ebp, [rax + rbp*2]
cmp ebp, r15d
jle 0x140098449
mov rax, qword [rbx + 0x28]
movzx ecx, byte [rax]
cmp cl, 0x30
jl 0x140098449
cmp cl, 0x39
jg 0x140098449
mov rcx, rbx
call fcn.140095a30
mov rax, qword [rbx + 0x28]
movzx ecx, byte [rax]
cmp cl, 0x30
jge 0x140098430
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x140098403
neg ebp
test r12b, r12b
je 0x140098517
mov edx, ebp
movaps xmm0, xmm6
add edx, r13d
call fcn.1400219b0
comisd xmm0, xmmword [0x14045b4e8]
jbe 0x1400984f4
mov rdx, qword [rsp + 0xb0]
mov rax, qword [rsp + 0x20]
mov dword [rdx + 0x30], reloc.WS2_32.dll_listen
mov qword [rdx + 0x38], rax
jmp 0x14009859c
mov r15d, 0x134
sub r15d, r13d
cmp dil, 0x30
jl 0x140098458
cmp dil, 0x39
jg 0x140098458
mov rcx, rbx
call fcn.140095a30
lea ebp, [rbp + rbp*4]
movsx eax, dil
lea ebp, [rbp - 0x18]
lea ebp, [rax + rbp*2]
cmp ebp, r15d
jg 0x140098478
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x1400984a4
jmp 0x140098458
sub rcx, qword [rbx + 0x10]
mov rdx, qword [rsp + 0xb0]
add rcx, qword [rbx + 0x38]
mov dword [rdx + 0x30], reloc.WS2_32.dll_ntohs
mov qword [rdx + 0x38], rcx
jmp 0x14009859c
cmp byte [rsp + 0xc8], 0
je 0x140098505
xorps xmm0, xmmword [0x14045b770]
mov rcx, qword [rsp + 0xc0]
movaps xmm1, xmm0
call fcn.140025280
jmp 0x14009856b
cmp byte [rsp + 0xb8], 0
mov rcx, qword [rsp + 0xc0]
je 0x14009854b
cmp byte [rsp + 0xc8], 0
je 0x140098541
not rsi
lea rdx, [rsi + 1]
call fcn.140025370
jmp 0x14009856b
mov rdx, rsi
call fcn.1400252e0
jmp 0x14009856b
cmp byte [rsp + 0xc8], 0
je 0x140098563
not r14d
lea edx, [r14 + 1]
call fcn.140025430
jmp 0x14009856b
mov edx, r14d
call fcn.1400253c0
test al, al
jne 0x14009859c
mov rdx, qword [rsp + 0xb0]
mov rax, qword [rsp + 0x20]
mov dword [rdx + 0x30], reloc.WS2_32.dll_recv
mov qword [rdx + 0x38], rax
jmp 0x14009859c
sub rdx, qword [rbx + 0x10]
add rdx, qword [rbx + 0x38]
mov qword [rcx + 0x38], rdx
mov dword [rcx + 0x30], 3
mov r14, qword [rsp + 0x68]
mov r12, qword [rsp + 0x70]
movaps xmm6, xmmword [rsp + 0x50]
movaps xmm7, xmmword [rsp + 0x40]
movaps xmm8, xmmword [rsp + 0x30]
add rsp, 0x78
pop r15
pop r13
pop rdi
pop rsi
pop rbp
pop rbx
ret