Function at 0x5123f0
Capabilities:
Parse credit card information

Disassembly:
mov ecx, dword fs:[0x14]
mov ecx, dword [ecx]
cmp esp, dword [ecx + 8]
jbe 0x512a88
sub esp, 0x48
mov eax, dword [esp + 0x50]
test eax, eax
je 0x512a55
lea ecx, [0x53b4c0]
mov dword [esp], ecx
mov dword [esp + 4], 0
shr eax, 1
mov dword [esp + 0x28], eax
mov dword [esp + 8], eax
call fcn.00440360
mov eax, dword [esp + 0xc]
mov ecx, dword [esp + 0x4c]
cmp byte [ecx], 0x22
jne 0x51279a
mov edx, dword [esp + 0x50]
dec edx
mov ebx, edx
neg edx
sar edx, 0x1f
and edx, 1
add ecx, edx
mov edx, dword [esp + 0x28]
xor ebp, ebp
jmp 0x512465
mov ecx, eax
mov ebp, esi
mov eax, edi
test ebx, ebx
je 0x512771
mov dword [esp + 0x38], eax
movzx esi, byte [ecx]
lea edi, [ebx - 1]
mov dword [esp + 0x50], edi
xchg edi, ebx
neg ebx
xchg edi, ebx
sar edi, 0x1f
and edi, 1
lea eax, [edi + ecx]
xchg esi, eax
cmp al, 0x22
xchg esi, eax
je 0x51268b
mov dword [esp + 0x44], eax
mov dword [esp + 0x24], ebp
xchg esi, eax
cmp al, 0x5c
xchg esi, eax
jne 0x512594
cmp ebx, 1
je 0x51256b
movzx ecx, byte [ecx + edi]
cmp cl, 0xb
jne 0x512525
lea esi, [ebp + 1]
cmp esi, edx
ja 0x5124d9
mov edi, dword [esp + 0x38]
mov byte [edi + ebp], cl
lea ecx, [ebx - 2]
mov ebx, ecx
neg ecx
sar ecx, 0x1f
and ecx, 1
add eax, ecx
jmp 0x51245f
mov byte [esp + 0x21], cl
mov dword [esp + 0x50], ebx
lea eax, [0x53b4c0]
mov dword [esp], eax
mov ecx, dword [esp + 0x38]
mov dword [esp + 4], ecx
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
mov dword [esp + 0x10], esi
call fcn.00440420
mov edi, dword [esp + 0x14]
mov eax, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
lea esi, [eax + 1]
mov eax, dword [esp + 0x44]
movzx ecx, byte [esp + 0x21]
mov ebx, dword [esp + 0x50]
mov ebp, dword [esp + 0x24]
jmp 0x5124c5
cmp cl, 0xc
je 0x5124ba
cmp cl, 1
jb 0x512534
cmp cl, 9
jbe 0x5124ba
cmp cl, 0xe
jb 0x512542
cmp cl, 0x7f
jbe 0x5124ba
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
xchg esi, eax
cmp al, 0xb
xchg esi, eax
jne 0x5125fe
lea ecx, [ebp + 1]
cmp ecx, edx
ja 0x5125b8
mov ebx, dword [esp + 0x38]
xchg esi, eax
mov byte [ebx + ebp], al
xchg esi, eax
mov esi, ecx
mov edi, ebx
mov ebx, dword [esp + 0x50]
jmp 0x51245f
xchg esi, eax
mov byte [esp + 0x20], al
xchg esi, eax
lea eax, [0x53b4c0]
mov dword [esp], eax
mov ebx, dword [esp + 0x38]
mov dword [esp + 4], ebx
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
mov dword [esp + 0x10], ecx
call fcn.00440420
mov ebx, dword [esp + 0x14]
mov eax, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
lea ecx, [eax + 1]
mov eax, dword [esp + 0x44]
mov ebp, dword [esp + 0x24]
movzx esi, byte [esp + 0x20]
jmp 0x5125a6
xchg esi, eax
cmp al, 0xc
xchg esi, eax
je 0x51259b
xchg esi, eax
cmp al, 0x20
xchg esi, eax
je 0x51259b
xchg esi, eax
cmp al, 0x21
xchg esi, eax
je 0x51259b
xchg esi, eax
cmp al, 0x7f
xchg esi, eax
je 0x51259b
xchg esi, eax
cmp al, 1
xchg esi, eax
jb 0x51262c
xchg esi, eax
cmp al, 8
xchg esi, eax
jbe 0x51259b
xchg esi, eax
cmp al, 0xe
xchg esi, eax
jb 0x51263e
xchg esi, eax
cmp al, 0x1f
xchg esi, eax
jbe 0x51259b
xchg esi, eax
cmp al, 0x23
xchg esi, eax
jb 0x512650
xchg esi, eax
cmp al, 0x5b
xchg esi, eax
jbe 0x51259b
xchg esi, eax
cmp al, 0x5d
xchg esi, eax
jb 0x512662
xchg esi, eax
cmp al, 0x7e
xchg esi, eax
jbe 0x51259b
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
mov ecx, dword [esp + 0x50]
mov ebx, dword [esp + 0x38]
test ecx, ecx
jne 0x5126c0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
cmp byte [eax], 0x40
jne 0x512697
mov dword [esp + 0x28], edx
mov dword [esp + 0x24], ebp
mov dword [esp + 0x38], ebx
dec ecx
mov dword [esp + 0x50], ecx
mov edx, ecx
neg ecx
sar ecx, 0x1f
and ecx, 1
add eax, ecx
mov dword [esp + 0x4c], eax
mov dword [esp], eax
mov dword [esp + 4], edx
call fcn.00512aa0
movzx eax, byte [esp + 0x14]
test al, al
je 0x512748
mov dword [esp], 0
mov eax, dword [esp + 0x38]
mov dword [esp + 4], eax
mov eax, dword [esp + 0x24]
mov dword [esp + 8], eax
mov eax, dword [esp + 0x28]
mov dword [esp + 0xc], eax
call fcn.00443970
mov eax, dword [esp + 0x14]
mov ecx, dword [esp + 0x10]
mov dword [esp + 0x54], ecx
mov dword [esp + 0x58], eax
mov eax, dword [esp + 0x4c]
mov dword [esp + 0x5c], eax
mov eax, dword [esp + 0x50]
mov dword [esp + 0x60], eax
mov byte [esp + 0x64], 1
add esp, 0x48
ret
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
mov edx, dword [esp + 0x28]
mov ebx, dword [esp + 0x50]
xor ebp, ebp
jmp 0x5127c4
xchg esi, ebx
mov byte [eax + ebp], bl
xchg esi, ebx
lea esi, [edi - 1]
mov edi, esi
xchg esi, ebx
neg ebx
xchg esi, ebx
sar esi, 0x1f
and esi, 1
add ecx, esi
mov ebp, ebx
mov ebx, edi
mov dword [esp + 0x2c], ebp
test ebx, ebx
jle 0x51295f
movzx esi, byte [ecx]
xchg esi, eax
cmp al, 0x5c
xchg esi, eax
jne 0x512884
lea esi, [ebx - 1]
mov edi, esi
xchg esi, ebx
neg ebx
xchg esi, ebx
sar esi, 0x1f
and esi, 1
add esi, ecx
cmp ebx, 1
je 0x51285b
test edi, edi
jbe 0x512a7e
lea ebx, [ebp + 1]
mov ecx, esi
movzx esi, byte [esi]
cmp ebx, edx
jbe 0x5127a6
mov dword [esp + 0x44], ecx
mov dword [esp + 0x50], edi
xchg esi, eax
mov byte [esp + 0x21], al
xchg esi, eax
lea ecx, [0x53b4c0]
mov dword [esp], ecx
mov dword [esp + 4], eax
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
mov dword [esp + 0x10], ebx
call fcn.00440420
mov eax, dword [esp + 0x14]
mov ecx, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
lea ebx, [ecx + 1]
mov ecx, dword [esp + 0x44]
mov ebp, dword [esp + 0x2c]
movzx esi, byte [esp + 0x21]
mov edi, dword [esp + 0x50]
jmp 0x5127a6
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
xchg esi, eax
cmp al, 0x30
xchg esi, eax
jb 0x51289b
xchg esi, eax
cmp al, 0x39
xchg esi, eax
ja 0x51289b
mov esi, ecx
mov edi, ebx
jmp 0x5127f6
xchg esi, eax
cmp al, 0x61
xchg esi, eax
jb 0x5128a9
xchg esi, eax
cmp al, 0x7a
xchg esi, eax
jbe 0x512892
xchg esi, eax
cmp al, 0x41
xchg esi, eax
jb 0x5128b7
xchg esi, eax
cmp al, 0x5a
xchg esi, eax
jbe 0x512892
xchg esi, eax
cmp al, 0x21
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x23
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x24
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x25
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x26
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x27
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x2a
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x2b
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x2d
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x2f
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x3d
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x3f
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x5e
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x5f
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x60
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x7b
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x7c
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x7d
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x7e
xchg esi, eax
je 0x512892
xchg esi, eax
cmp al, 0x2e
xchg esi, eax
je 0x512892
test ebp, ebp
je 0x512a2c
mov word [esp + 0x22], 0
mov word [esp + 0x22], 0x2e2e
cmp byte [eax], 0x2e
jne 0x5129bb
mov esi, 1
xchg esi, eax
test al, al
xchg esi, eax
jne 0x512992
mov esi, ecx
mov ecx, ebx
mov ebx, eax
mov eax, esi
jmp 0x512693
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
movzx esi, byte [ebp + eax - 1]
xchg esi, eax
cmp al, 0x2e
xchg esi, eax
jne 0x5129ce
mov esi, 1
jmp 0x51297f
mov dword [esp + 0x34], ebx
mov dword [esp + 0x40], ecx
mov dword [esp + 0x30], edx
mov dword [esp + 0x3c], eax
nop
mov dword [esp], eax
mov dword [esp + 4], ebp
mov dword [esp + 8], edx
lea ecx, [esp + 0x22]
mov dword [esp + 0xc], ecx
mov dword [esp + 0x10], 2
mov dword [esp + 0x14], 2
call fcn.004b3310
cmp dword [esp + 0x18], 0xffffffff
xchg esi, ebx
setne bl
xchg esi, ebx
mov eax, dword [esp + 0x3c]
mov ecx, dword [esp + 0x40]
mov edx, dword [esp + 0x30]
mov ebx, dword [esp + 0x34]
mov ebp, dword [esp + 0x2c]
jmp 0x51297f
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov dword [esp + 0x5c], 0
mov dword [esp + 0x60], 0
mov byte [esp + 0x64], 0
add esp, 0x48
ret
xor eax, eax
mov ecx, edi
call fcn.00455c70
nop
call fcn.004543b0
jmp fcn.005123f0