Function at 0x10003c5d
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push 8
push 0x38
mov eax, 0x10050728
call fcn.1004fef3
mov edx, ecx
mov dword [ebp - 0x1c], edx
mov eax, dword [ebx + 8]
lea edi, [ebp - 0x48]
mov esi, eax
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
mov dword [ebp - 0x3c], eax
and dword [ebp - 4], 0
xorps xmm1, xmm1
mov esi, dword [ebp - 0x48]
mov eax, esi
sub eax, dword [ebp - 0x40]
mov dword [ebp - 0x30], eax
cmp byte [esi], 0x2d
jne 0x10003c9d
inc esi
mov ch, 1
mov dword [ebp - 0x48], esi
jmp 0x10003c9f
xor ch, ch
mov al, byte [esi]
xorps xmm0, xmm0
and dword [ebp - 0x20], 0
mov byte [ebp - 0x13], ch
movlpd qword [ebp - 0x38], xmm0
mov byte [ebp - 0x12], 0
cmp al, 0x30
jne 0x10003cc7
and dword [ebp - 0x2c], 0
lea edi, [esi + 1]
mov dword [ebp - 0x48], edi
jmp 0x10003d88
cmp al, 0x31
jl 0x1000425b
cmp al, 0x39
jg 0x1000425b
movsx eax, al
lea edi, [esi + 1]
mov cl, byte [edi]
sub eax, 0x30
mov dword [ebp - 0x48], edi
mov dword [ebp - 0x2c], eax
test ch, ch
je 0x10003d43
cmp cl, 0x30
jl 0x10003d88
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
ja 0x10003d88
cmp eax, 0xccccccc
jb 0x10003d14
jne 0x10003d39
mov esi, dword [ebp - 0x28]
cmp cl, 0x38
ja 0x10003d39
imul ecx, eax, 0xa
lea edi, [esi + 1]
movsx eax, byte [esi]
mov esi, edi
add eax, 0xffffffd0
mov dword [ebp - 0x48], edi
mov dword [ebp - 0x28], edi
add eax, ecx
mov cl, byte [edi]
inc dword [ebp - 0x20]
mov dword [ebp - 0x2c], eax
cmp cl, 0x30
jge 0x10003cfa
jmp 0x10003d88
mov ecx, eax
mov byte [ebp - 0x12], 1
xor eax, eax
jmp 0x10003d8e
cmp cl, 0x30
jl 0x10003d88
mov cl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
jg 0x10003d88
cmp eax, 0x19999999
jb 0x10003d65
jne 0x10003d39
mov esi, dword [ebp - 0x28]
cmp cl, 0x35
jg 0x10003d39
imul ecx, eax, 0xa
lea edi, [esi + 1]
movsx eax, byte [esi]
mov esi, edi
add eax, 0xffffffd0
mov dword [ebp - 0x48], edi
mov dword [ebp - 0x28], edi
add eax, ecx
mov cl, byte [edi]
inc dword [ebp - 0x20]
mov dword [ebp - 0x2c], eax
cmp cl, 0x30
jge 0x10003d4f
mov ecx, dword [ebp - 0x38]
mov eax, dword [ebp - 0x34]
cmp byte [ebp - 0x12], 0
mov dword [ebp - 0x18], ecx
mov dword [ebp - 0x24], eax
mov byte [ebp - 0x11], 0
je 0x10003ed2
cmp byte [ebp - 0x13], 0
je 0x10003e40
cmp byte [edi], 0x30
mov edx, dword [ebp - 0x1c]
jl 0x10003ed2
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003ecf
cmp eax, 0xccccccc
jb 0x10003dfc
ja 0x10003dd9
cmp ecx, 0xcccccccc
jb 0x10003dfc
cmp ecx, 0xcccccccc
jne 0x10003ec1
cmp eax, 0xccccccc
jne 0x10003ec1
mov esi, dword [ebp - 0x28]
cmp dl, 0x38
ja 0x10003ec1
movsx edi, byte [esi]
lea ecx, [esi + 1]
mov dword [ebp - 0x48], ecx
sub edi, 0x30
push 0xa
pop ecx
mul ecx
push 0xa
mov ecx, eax
xor esi, esi
mov eax, dword [ebp - 0x18]
pop edx
mul edx
add ecx, edx
add edi, eax
adc esi, ecx
inc dword [ebp - 0x20]
mov ecx, edi
mov eax, esi
mov edi, dword [ebp - 0x48]
mov esi, edi
mov dword [ebp - 0x18], ecx
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x28], edi
mov dl, byte [edi]
cmp dl, 0x30
jge 0x10003dbf
jmp 0x10003ecf
cmp byte [edi], 0x30
mov ecx, dword [ebp - 0x18]
jl 0x10003ed2
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003ecf
cmp eax, 0x19999999
jb 0x10003e80
ja 0x10003e69
cmp ecx, 0x99999999
jb 0x10003e80
cmp ecx, 0x99999999
jne 0x10003ec1
cmp eax, 0x19999999
jne 0x10003ec1
mov esi, dword [ebp - 0x28]
cmp dl, 0x35
ja 0x10003ec1
movsx edi, byte [esi]
lea ecx, [esi + 1]
mov dword [ebp - 0x48], ecx
sub edi, 0x30
push 0xa
pop ecx
mul ecx
push 0xa
mov ecx, eax
xor esi, esi
mov eax, dword [ebp - 0x18]
pop edx
mul edx
add ecx, edx
add edi, eax
adc esi, ecx
inc dword [ebp - 0x20]
mov ecx, edi
mov eax, esi
mov edi, dword [ebp - 0x48]
mov esi, edi
mov dword [ebp - 0x18], ecx
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x28], edi
mov dl, byte [edi]
cmp dl, 0x30
jge 0x10003e53
jmp 0x10003ecf
mov edx, eax
call fcn.10050440
mov byte [ebp - 0x11], 1
movaps xmm1, xmm0
mov edx, dword [ebp - 0x1c]
cmp byte [ebp - 0x11], 0
je 0x10003f0c
mov al, byte [edi]
cmp al, 0x30
jl 0x10003f0c
mov ecx, edi
cmp al, 0x39
ja 0x10003f09
movsx eax, byte [ecx]
lea edi, [ecx + 1]
mulsd xmm1, qword [0x10058800]
sub eax, 0x30
mov ecx, edi
movd xmm0, eax
mov al, byte [edi]
cvtdq2pd xmm0, xmm0
addsd xmm1, xmm0
cmp al, 0x30
jge 0x10003ee0
mov dword [ebp - 0x48], edi
mov al, byte [edi]
and dword [ebp - 0x28], 0
cmp al, 0x2e
jne 0x10003f1a
inc edi
mov dword [ebp - 0x48], edi
mov esi, edi
cmp al, 0x2e
jne 0x10003fc4
mov al, byte [esi]
cmp al, 0x30
jl 0x10003fea
cmp al, 0x39
jg 0x10003fea
mov al, byte [ebp - 0x11]
test al, al
jne 0x10003f5d
cmp byte [ebp - 0x12], al
je 0x10003f4a
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10003f4f
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.10050440
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
jmp 0x10003f60
mov byte [ebp - 0x11], al
mov cl, byte [edi]
mov eax, esi
mov dword [ebp - 0x34], esi
mov edx, esi
mov edi, esi
mov esi, edx
cmp cl, 0x39
jg 0x10003fc4
mov edx, dword [ebp - 0x20]
cmp edx, 0x11
jge 0x10003faf
mulsd xmm1, qword [0x10058800]
lea esi, [eax + 1]
movsx eax, byte [eax]
mov ecx, esi
sub eax, 0x30
mov dword [ebp - 0x48], ecx
dec dword [ebp - 0x28]
movd xmm0, eax
cvtdq2pd xmm0, xmm0
addsd xmm1, xmm0
comisd xmm1, xmmword [0x10058708]
jbe 0x10003fb7
inc edx
mov dword [ebp - 0x20], edx
jmp 0x10003fb7
lea esi, [edi + 1]
mov ecx, esi
mov dword [ebp - 0x48], ecx
mov cl, byte [ecx]
mov eax, esi
mov edi, eax
mov edx, eax
cmp cl, 0x30
jge 0x10003f6b
xor ecx, ecx
cmp byte [esi], 0x65
je 0x10003fd4
cmp byte [esi], 0x45
jne 0x1000409e
inc esi
mov dword [ebp - 0x48], esi
cmp byte [ebp - 0x11], cl
jne 0x10004008
cmp byte [ebp - 0x12], cl
je 0x10003ff7
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10003ffc
mov dword [ebp - 0x30], edx
mov edx, dword [ebp - 0x1c]
push 0xe
jmp 0x10004260
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.10050440
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
xor dl, dl
cmp byte [esi], 0x2b
je 0x10004016
cmp byte [esi], 0x2d
jne 0x1000401a
inc dl
inc esi
mov dword [ebp - 0x48], esi
mov cl, byte [esi]
mov al, cl
sub al, 0x30
cmp al, 9
ja 0x10004123
inc esi
movsx ecx, cl
sub ecx, 0x30
mov dword [ebp - 0x48], esi
mov al, byte [esi]
mov byte [ebp - 0x14], al
test dl, dl
je 0x100040ef
mov eax, dword [ebp - 0x28]
add eax, 0x7ffffff7
push 0xa
pop edi
cdq
idiv edi
cmp byte [ebp - 0x14], 0x30
mov edi, eax
mov dword [ebp - 0x34], edi
jl 0x1000409c
mov dl, byte [esi]
cmp dl, 0x39
jg 0x1000409c
movsx eax, byte [esi]
lea edx, [esi + 1]
imul ecx, ecx, 0xa
mov esi, edx
mov dword [ebp - 0x48], edx
add ecx, 0xffffffd0
add ecx, eax
cmp ecx, edi
jle 0x10004095
mov al, byte [edx]
cmp al, 0x30
jl 0x10004095
mov edi, edx
cmp al, 0x39
ja 0x1000408f
lea esi, [edi + 1]
mov edx, esi
mov edi, esi
mov al, byte [edx]
cmp al, 0x30
jge 0x1000407e
mov edi, dword [ebp - 0x34]
mov dword [ebp - 0x48], edx
mov dl, byte [edx]
cmp dl, 0x30
jge 0x1000405a
neg ecx
mov edx, dword [ebp - 0x28]
cmp byte [ebp - 0x11], 0
je 0x1000418b
lea eax, [ecx + edx]
mov edx, 0xfffffecc
cmp eax, edx
jge 0x100040bf
divsd xmm1, qword [0x10058920]
lea ecx, [eax + 0x134]
movaps xmm0, xmm1
cmovge ecx, eax
call fcn.10003142
comisd xmm0, xmmword [0x10058928]
jbe 0x10004138
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0xd
mov ecx, dword [ebp - 0x30]
mov dword [eax + 0x1c], ecx
jmp 0x10004273
mov edx, dword [ebp - 0x28]
mov edi, 0x134
sub edi, edx
cmp al, 0x30
jl 0x100040a1
cmp al, 0x39
jg 0x1000409e
movsx eax, byte [esi]
lea edx, [esi + 1]
imul ecx, ecx, 0xa
mov dword [ebp - 0x48], edx
add ecx, 0xffffffd0
add ecx, eax
cmp ecx, edi
jg 0x100040da
mov al, byte [edx]
mov esi, edx
cmp al, 0x30
jge 0x100040fd
jmp 0x1000409e
mov eax, dword [ebp - 0x1c]
sub esi, dword [ebp - 0x40]
mov dword [eax + 0x18], 0xf
mov dword [eax + 0x1c], esi
jmp 0x10004273
cmp byte [ebp - 0x13], 0
je 0x10004145
xorps xmm0, xmmword [0x100594a0]
mov ecx, dword [ebx + 0xc]
movsd qword [ebp - 0x38], xmm0
lea esi, [ecx + 0x18]
mov eax, dword [esi + 0x10]
sub eax, dword [esi + 0xc]
cmp eax, 0x10
jge 0x10004168
push ecx
mov ecx, esi
call fcn.1000469e
movsd xmm0, qword [ebp - 0x38]
mov ecx, dword [esi + 0xc]
mov edi, ecx
lea eax, [ecx + 0x10]
mov dword [esi + 0xc], eax
xor eax, eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
mov eax, 0x216
movsd qword [ecx], xmm0
mov word [ecx + 0xe], ax
jmp 0x10004273
cmp byte [ebp - 0x12], 0
je 0x100041d5
cmp byte [ebp - 0x13], 0
je 0x100041b0
mov ecx, dword [ebp - 0x18]
mov eax, dword [ebp - 0x24]
neg ecx
adc eax, 0
neg eax
push eax
push ecx
mov ecx, dword [ebx + 0xc]
call fcn.1000446a
jmp 0x100041be
push dword [ebp - 0x24]
mov ecx, dword [ebx + 0xc]
push dword [ebp - 0x18]
call fcn.100043e9
test al, al
jne 0x10004273
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0x10
jmp 0x100040e4
mov edi, dword [ebx + 0xc]
mov eax, dword [edi + 0x28]
lea ecx, [edi + 0x18]
sub eax, dword [edi + 0x24]
cmp byte [ebp - 0x13], 0
je 0x10004224
mov esi, dword [ebp - 0x2c]
neg esi
cmp eax, 0x10
jge 0x100041f7
push ecx
call fcn.1000469e
mov ecx, dword [edi + 0x24]
lea eax, [ecx + 0x10]
mov dword [edi + 0x24], eax
xor eax, eax
mov edi, ecx
test esi, esi
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
mov eax, esi
cdq
mov dword [ecx], eax
mov eax, 0xb6
mov dword [ecx + 4], edx
mov edx, 0x1f6
cmovns eax, edx
jmp 0x10004182
cmp eax, 0x10
jge 0x1000422f
push ecx
call fcn.1000469e
mov ecx, dword [edi + 0x24]
lea eax, [ecx + 0x10]
mov dword [edi + 0x24], eax
xor eax, eax
mov edi, ecx
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
mov eax, dword [ebp - 0x2c]
and dword [ecx + 4], 0
mov dword [ecx], eax
shr eax, 0x1a
not eax
and eax, 0x20
or eax, 0x1d6
jmp 0x10004182
push 3
mov dword [ebp - 0x30], edx
sub esi, dword [ebp - 0x40]
pop eax
push 0x1c
pop edi
push 0x18
pop ecx
mov dword [ecx + edx], eax
mov ecx, dword [ebp - 0x30]
mov dword [ecx + edi], esi
mov edi, dword [ebx + 8]
lea esi, [ebp - 0x48]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
call fcn.1004fe70
ret 8