Function at 0x10003c67
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push 8
push 0x38
mov eax, 0x100507c8
call fcn.1004ff93
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 0x10003ca7
inc esi
mov ch, 1
mov dword [ebp - 0x48], esi
jmp 0x10003ca9
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 0x10003cd1
and dword [ebp - 0x2c], 0
lea edi, [esi + 1]
mov dword [ebp - 0x48], edi
jmp 0x10003d92
cmp al, 0x31
jl 0x10004265
cmp al, 0x39
jg 0x10004265
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 0x10003d4d
cmp cl, 0x30
jl 0x10003d92
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
ja 0x10003d92
cmp eax, 0xccccccc
jb 0x10003d1e
jne 0x10003d43
mov esi, dword [ebp - 0x28]
cmp cl, 0x38
ja 0x10003d43
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 0x10003d04
jmp 0x10003d92
mov ecx, eax
mov byte [ebp - 0x12], 1
xor eax, eax
jmp 0x10003d98
cmp cl, 0x30
jl 0x10003d92
mov cl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
jg 0x10003d92
cmp eax, 0x19999999
jb 0x10003d6f
jne 0x10003d43
mov esi, dword [ebp - 0x28]
cmp cl, 0x35
jg 0x10003d43
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 0x10003d59
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 0x10003edc
cmp byte [ebp - 0x13], 0
je 0x10003e4a
cmp byte [edi], 0x30
mov edx, dword [ebp - 0x1c]
jl 0x10003edc
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003ed9
cmp eax, 0xccccccc
jb 0x10003e06
ja 0x10003de3
cmp ecx, 0xcccccccc
jb 0x10003e06
cmp ecx, 0xcccccccc
jne 0x10003ecb
cmp eax, 0xccccccc
jne 0x10003ecb
mov esi, dword [ebp - 0x28]
cmp dl, 0x38
ja 0x10003ecb
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 0x10003dc9
jmp 0x10003ed9
cmp byte [edi], 0x30
mov ecx, dword [ebp - 0x18]
jl 0x10003edc
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003ed9
cmp eax, 0x19999999
jb 0x10003e8a
ja 0x10003e73
cmp ecx, 0x99999999
jb 0x10003e8a
cmp ecx, 0x99999999
jne 0x10003ecb
cmp eax, 0x19999999
jne 0x10003ecb
mov esi, dword [ebp - 0x28]
cmp dl, 0x35
ja 0x10003ecb
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 0x10003e5d
jmp 0x10003ed9
mov edx, eax
call fcn.100504e0
mov byte [ebp - 0x11], 1
movaps xmm1, xmm0
mov edx, dword [ebp - 0x1c]
cmp byte [ebp - 0x11], 0
je 0x10003f16
mov al, byte [edi]
cmp al, 0x30
jl 0x10003f16
mov ecx, edi
cmp al, 0x39
ja 0x10003f13
movsx eax, byte [ecx]
lea edi, [ecx + 1]
mulsd xmm1, qword [0x10059800]
sub eax, 0x30
mov ecx, edi
movd xmm0, eax
mov al, byte [edi]
cvtdq2pd xmm0, xmm0
addsd xmm1, xmm0
cmp al, 0x30
jge 0x10003eea
mov dword [ebp - 0x48], edi
mov al, byte [edi]
and dword [ebp - 0x28], 0
cmp al, 0x2e
jne 0x10003f24
inc edi
mov dword [ebp - 0x48], edi
mov esi, edi
cmp al, 0x2e
jne 0x10003fce
mov al, byte [esi]
cmp al, 0x30
jl 0x10003ff4
cmp al, 0x39
jg 0x10003ff4
mov al, byte [ebp - 0x11]
test al, al
jne 0x10003f67
cmp byte [ebp - 0x12], al
je 0x10003f54
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10003f59
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.100504e0
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
jmp 0x10003f6a
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 0x10003fce
mov edx, dword [ebp - 0x20]
cmp edx, 0x11
jge 0x10003fb9
mulsd xmm1, qword [0x10059800]
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 [0x10059708]
jbe 0x10003fc1
inc edx
mov dword [ebp - 0x20], edx
jmp 0x10003fc1
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 0x10003f75
xor ecx, ecx
cmp byte [esi], 0x65
je 0x10003fde
cmp byte [esi], 0x45
jne 0x100040a8
inc esi
mov dword [ebp - 0x48], esi
cmp byte [ebp - 0x11], cl
jne 0x10004012
cmp byte [ebp - 0x12], cl
je 0x10004001
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10004006
mov dword [ebp - 0x30], edx
mov edx, dword [ebp - 0x1c]
push 0xe
jmp 0x1000426a
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.100504e0
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
xor dl, dl
cmp byte [esi], 0x2b
je 0x10004020
cmp byte [esi], 0x2d
jne 0x10004024
inc dl
inc esi
mov dword [ebp - 0x48], esi
mov cl, byte [esi]
mov al, cl
sub al, 0x30
cmp al, 9
ja 0x1000412d
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 0x100040f9
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 0x100040a6
mov dl, byte [esi]
cmp dl, 0x39
jg 0x100040a6
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 0x1000409f
mov al, byte [edx]
cmp al, 0x30
jl 0x1000409f
mov edi, edx
cmp al, 0x39
ja 0x10004099
lea esi, [edi + 1]
mov edx, esi
mov edi, esi
mov al, byte [edx]
cmp al, 0x30
jge 0x10004088
mov edi, dword [ebp - 0x34]
mov dword [ebp - 0x48], edx
mov dl, byte [edx]
cmp dl, 0x30
jge 0x10004064
neg ecx
mov edx, dword [ebp - 0x28]
cmp byte [ebp - 0x11], 0
je 0x10004195
lea eax, [ecx + edx]
mov edx, 0xfffffecc
cmp eax, edx
jge 0x100040c9
divsd xmm1, qword [0x10059920]
lea ecx, [eax + 0x134]
movaps xmm0, xmm1
cmovge ecx, eax
call fcn.10003143
comisd xmm0, xmmword [0x10059928]
jbe 0x10004142
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0xd
mov ecx, dword [ebp - 0x30]
mov dword [eax + 0x1c], ecx
jmp 0x1000427d
mov edx, dword [ebp - 0x28]
mov edi, 0x134
sub edi, edx
cmp al, 0x30
jl 0x100040ab
cmp al, 0x39
jg 0x100040a8
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 0x100040e4
mov al, byte [edx]
mov esi, edx
cmp al, 0x30
jge 0x10004107
jmp 0x100040a8
mov eax, dword [ebp - 0x1c]
sub esi, dword [ebp - 0x40]
mov dword [eax + 0x18], 0xf
mov dword [eax + 0x1c], esi
jmp 0x1000427d
cmp byte [ebp - 0x13], 0
je 0x1000414f
xorps xmm0, xmmword [0x10059eb0]
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 0x10004172
push ecx
mov ecx, esi
call fcn.100046a8
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 0x1000427d
cmp byte [ebp - 0x12], 0
je 0x100041df
cmp byte [ebp - 0x13], 0
je 0x100041ba
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.10004474
jmp 0x100041c8
push dword [ebp - 0x24]
mov ecx, dword [ebx + 0xc]
push dword [ebp - 0x18]
call fcn.100043f3
test al, al
jne 0x1000427d
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0x10
jmp 0x100040ee
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 0x1000422e
mov esi, dword [ebp - 0x2c]
neg esi
cmp eax, 0x10
jge 0x10004201
push ecx
call fcn.100046a8
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 0x1000418c
cmp eax, 0x10
jge 0x10004239
push ecx
call fcn.100046a8
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 0x1000418c
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.1004ff10
ret 8