Function at 0x10003c6a
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push 8
push 0x38
mov eax, 0x10050778
call fcn.1004ff43
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 0x10003caa
inc esi
mov ch, 1
mov dword [ebp - 0x48], esi
jmp 0x10003cac
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 0x10003cd4
and dword [ebp - 0x2c], 0
lea edi, [esi + 1]
mov dword [ebp - 0x48], edi
jmp 0x10003d95
cmp al, 0x31
jl 0x10004268
cmp al, 0x39
jg 0x10004268
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 0x10003d50
cmp cl, 0x30
jl 0x10003d95
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
ja 0x10003d95
cmp eax, 0xccccccc
jb 0x10003d21
jne 0x10003d46
mov esi, dword [ebp - 0x28]
cmp cl, 0x38
ja 0x10003d46
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 0x10003d07
jmp 0x10003d95
mov ecx, eax
mov byte [ebp - 0x12], 1
xor eax, eax
jmp 0x10003d9b
cmp cl, 0x30
jl 0x10003d95
mov cl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], edi
cmp cl, 0x39
jg 0x10003d95
cmp eax, 0x19999999
jb 0x10003d72
jne 0x10003d46
mov esi, dword [ebp - 0x28]
cmp cl, 0x35
jg 0x10003d46
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 0x10003d5c
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 0x10003edf
cmp byte [ebp - 0x13], 0
je 0x10003e4d
cmp byte [edi], 0x30
mov edx, dword [ebp - 0x1c]
jl 0x10003edf
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003edc
cmp eax, 0xccccccc
jb 0x10003e09
ja 0x10003de6
cmp ecx, 0xcccccccc
jb 0x10003e09
cmp ecx, 0xcccccccc
jne 0x10003ece
cmp eax, 0xccccccc
jne 0x10003ece
mov esi, dword [ebp - 0x28]
cmp dl, 0x38
ja 0x10003ece
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 0x10003dcc
jmp 0x10003edc
cmp byte [edi], 0x30
mov ecx, dword [ebp - 0x18]
jl 0x10003edf
mov dl, byte [edi]
mov esi, edi
mov dword [ebp - 0x28], esi
cmp dl, 0x39
ja 0x10003edc
cmp eax, 0x19999999
jb 0x10003e8d
ja 0x10003e76
cmp ecx, 0x99999999
jb 0x10003e8d
cmp ecx, 0x99999999
jne 0x10003ece
cmp eax, 0x19999999
jne 0x10003ece
mov esi, dword [ebp - 0x28]
cmp dl, 0x35
ja 0x10003ece
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 0x10003e60
jmp 0x10003edc
mov edx, eax
call fcn.10050490
mov byte [ebp - 0x11], 1
movaps xmm1, xmm0
mov edx, dword [ebp - 0x1c]
cmp byte [ebp - 0x11], 0
je 0x10003f19
mov al, byte [edi]
cmp al, 0x30
jl 0x10003f19
mov ecx, edi
cmp al, 0x39
ja 0x10003f16
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 0x10003eed
mov dword [ebp - 0x48], edi
mov al, byte [edi]
and dword [ebp - 0x28], 0
cmp al, 0x2e
jne 0x10003f27
inc edi
mov dword [ebp - 0x48], edi
mov esi, edi
cmp al, 0x2e
jne 0x10003fd1
mov al, byte [esi]
cmp al, 0x30
jl 0x10003ff7
cmp al, 0x39
jg 0x10003ff7
mov al, byte [ebp - 0x11]
test al, al
jne 0x10003f6a
cmp byte [ebp - 0x12], al
je 0x10003f57
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10003f5c
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.10050490
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
jmp 0x10003f6d
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 0x10003fd1
mov edx, dword [ebp - 0x20]
cmp edx, 0x11
jge 0x10003fbc
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 0x10003fc4
inc edx
mov dword [ebp - 0x20], edx
jmp 0x10003fc4
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 0x10003f78
xor ecx, ecx
cmp byte [esi], 0x65
je 0x10003fe1
cmp byte [esi], 0x45
jne 0x100040ab
inc esi
mov dword [ebp - 0x48], esi
cmp byte [ebp - 0x11], cl
jne 0x10004015
cmp byte [ebp - 0x12], cl
je 0x10004004
mov ecx, dword [ebp - 0x18]
mov edx, dword [ebp - 0x24]
jmp 0x10004009
mov dword [ebp - 0x30], edx
mov edx, dword [ebp - 0x1c]
push 0xe
jmp 0x1000426d
mov ecx, dword [ebp - 0x2c]
xor edx, edx
call fcn.10050490
movaps xmm1, xmm0
mov byte [ebp - 0x11], 1
xor dl, dl
cmp byte [esi], 0x2b
je 0x10004023
cmp byte [esi], 0x2d
jne 0x10004027
inc dl
inc esi
mov dword [ebp - 0x48], esi
mov cl, byte [esi]
mov al, cl
sub al, 0x30
cmp al, 9
ja 0x10004130
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 0x100040fc
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 0x100040a9
mov dl, byte [esi]
cmp dl, 0x39
jg 0x100040a9
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 0x100040a2
mov al, byte [edx]
cmp al, 0x30
jl 0x100040a2
mov edi, edx
cmp al, 0x39
ja 0x1000409c
lea esi, [edi + 1]
mov edx, esi
mov edi, esi
mov al, byte [edx]
cmp al, 0x30
jge 0x1000408b
mov edi, dword [ebp - 0x34]
mov dword [ebp - 0x48], edx
mov dl, byte [edx]
cmp dl, 0x30
jge 0x10004067
neg ecx
mov edx, dword [ebp - 0x28]
cmp byte [ebp - 0x11], 0
je 0x10004198
lea eax, [ecx + edx]
mov edx, 0xfffffecc
cmp eax, edx
jge 0x100040cc
divsd xmm1, qword [0x10059920]
lea ecx, [eax + 0x134]
movaps xmm0, xmm1
cmovge ecx, eax
call fcn.10003143
comisd xmm0, xmmword [0x10059928]
jbe 0x10004145
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0xd
mov ecx, dword [ebp - 0x30]
mov dword [eax + 0x1c], ecx
jmp 0x10004280
mov edx, dword [ebp - 0x28]
mov edi, 0x134
sub edi, edx
cmp al, 0x30
jl 0x100040ae
cmp al, 0x39
jg 0x100040ab
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 0x100040e7
mov al, byte [edx]
mov esi, edx
cmp al, 0x30
jge 0x1000410a
jmp 0x100040ab
mov eax, dword [ebp - 0x1c]
sub esi, dword [ebp - 0x40]
mov dword [eax + 0x18], 0xf
mov dword [eax + 0x1c], esi
jmp 0x10004280
cmp byte [ebp - 0x13], 0
je 0x10004152
xorps xmm0, xmmword [0x1005a6a0]
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 0x10004175
push ecx
mov ecx, esi
call fcn.100046ab
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 0x10004280
cmp byte [ebp - 0x12], 0
je 0x100041e2
cmp byte [ebp - 0x13], 0
je 0x100041bd
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.10004477
jmp 0x100041cb
push dword [ebp - 0x24]
mov ecx, dword [ebx + 0xc]
push dword [ebp - 0x18]
call fcn.100043f6
test al, al
jne 0x10004280
mov eax, dword [ebp - 0x1c]
mov dword [eax + 0x18], 0x10
jmp 0x100040f1
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 0x10004231
mov esi, dword [ebp - 0x2c]
neg esi
cmp eax, 0x10
jge 0x10004204
push ecx
call fcn.100046ab
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 0x1000418f
cmp eax, 0x10
jge 0x1000423c
push ecx
call fcn.100046ab
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 0x1000418f
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.1004fec0
ret 8