Function at 0x4f31e7
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [0x587c28]
push ebx
push esi
push edi
mov cl, byte [eax]
lea esi, [eax + 1]
xor edi, edi
mov dword [0x587c28], esi
mov dword [ebp - 8], edi
mov dword [ebp - 4], edi
mov dword [ebp - 0x18], edi
mov dword [ebp - 0x14], edi
cmp cl, 0x41
jg 0x4f33a8
je 0x4f383a
test cl, cl
je 0x4f338e
cmp cl, 0x2f
jle case.default.0x4f3713
cmp cl, 0x31
jle 0x4f329e
cmp cl, 0x39
jg case.default.0x4f3713
movsx eax, byte [esi - 1]
lea eax, [eax*8 + 0x552e30]
push eax
lea ecx, [ebp - 8]
call fcn.004eff31
cmp dword [ebp - 8], 0
je 0x4f328b
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], str.operator
push eax
lea ecx, [ebp - 0x28]
mov dword [ebp - 0x1c], 8
call fcn.004efcf7
lea ecx, [ebp - 8]
push ecx
lea ecx, [ebp - 0x20]
push ecx
mov ecx, eax
call fcn.004f005b
mov eax, dword [ebp - 0x20]
mov dword [ebp - 8], eax
mov eax, dword [ebp - 0x1c]
mov dword [ebp - 4], eax
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 8]
mov dword [eax], ecx
mov ecx, dword [ebp - 4]
mov dword [eax + 4], ecx
pop edi
pop esi
pop ebx
leave
ret
mov ebx, edi
mov dword [ebp - 0xc], edi
mov dword [ebp - 0x10], ebx
cmp byte [ebp + 0xc], bl
je 0x4f332f
lea eax, [ebp - 0x20]
push eax
call fcn.004f4646
push eax
lea eax, [ebp - 0x18]
push 0x3c
push eax
call fcn.004effec
add esp, 0x10
lea ecx, [ebp - 0x10]
push eax
call fcn.004f0119
mov ebx, dword [ebp - 0x10]
test ebx, ebx
je 0x4f32f6
mov eax, dword [ebx]
mov esi, dword [eax + 8]
mov ecx, esi
call dword [0x53e748]
mov ecx, ebx
call esi
cmp al, 0x3e
jne 0x4f32f6
push 0x20
lea ecx, [ebp - 0x10]
call fcn.004f0170
push 0x3e
lea ecx, [ebp - 0x10]
call fcn.004f0170
mov eax, dword [ebp + 0x10]
test eax, eax
je 0x4f330a
mov byte [eax], 1
mov esi, dword [0x587c28]
cmp byte [esi], 0
jne 0x4f3325
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
mov ecx, dword [ebp - 0xc]
jmp 0x4f3296
mov ebx, dword [ebp - 0x10]
inc esi
mov dword [0x587c28], esi
push edi
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004f5585
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
mov dword [0x587c28], esi
test ecx, ecx
je 0x4f3375
cmp byte [esi - 1], 0x31
jne 0x4f3375
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x20]
push 0x7e
push eax
call fcn.004effec
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
test ebx, ebx
je 0x4f328b
lea eax, [ebp - 0x10]
push eax
lea ecx, [ebp - 8]
call fcn.004f0119
jmp 0x4f328b
lea eax, [esi - 1]
mov dword [0x587c28], eax
mov ecx, dword [ebp + 8]
push 1
call fcn.004efd65
mov eax, dword [ebp + 8]
jmp 0x4f3299
cmp cl, 0x42
je 0x4f3837
jle case.default.0x4f3713
cmp cl, 0x5a
jle 0x4f383a
cmp cl, 0x5f
jne case.default.0x4f3713
movsx eax, byte [esi]
lea ecx, [esi + 1]
mov dword [0x587c28], ecx
cmp eax, 0x4f
jg 0x4f34eb
cmp eax, 0x44
jge 0x4f3806
cmp eax, 0x39
jg 0x4f3467
je 0x4f343a
test eax, eax
je 0x4f342f
cmp eax, 0x2f
jle case.default.0x4f3713
cmp eax, 0x36
jle 0x4f341f
cmp eax, 0x38
jg case.default.0x4f3713
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x552f50]
mov ecx, dword [ebp + 8]
push eax
call fcn.004efcf7
jmp 0x4f33a0
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x552f50]
jmp 0x4f3247
mov dword [0x587c28], esi
jmp 0x4f3396
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x552f50]
push eax
call fcn.004efcf7
mov edx, dword [ebp - 0x14]
or edx, 0x8000
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov dword [eax + 4], edx
jmp 0x4f3299
cmp eax, 0x3f
je 0x4f3498
cmp eax, 0x40
jle case.default.0x4f3713
cmp eax, 0x42
jle 0x4f3806
push 1
lea eax, [ebp - 0x18]
push edi
push eax
call fcn.004f44c5
mov edx, dword [ebp - 0x14]
add esp, 0xc
or edx, 0x1000
jmp 0x4f3457
mov dl, byte [ecx]
lea eax, [ecx + 1]
mov dword [0x587c28], eax
test dl, dl
je 0x4f34e0
mov esi, dword [ebp + 8]
cmp dl, 0x30
je 0x4f34b9
mov dword [esi + 4], edi
mov byte [esi + 4], 2
mov dword [esi], edi
jmp 0x4f34d9
push edi
lea eax, [ebp - 0x18]
push 1
push eax
call fcn.004f44c5
mov ecx, dword [ebp - 0x14]
add esp, 0xc
mov eax, dword [ebp - 0x18]
or ecx, 0x1000
mov dword [esi], eax
mov dword [esi + 4], ecx
mov eax, esi
jmp 0x4f3299
mov dword [0x587c28], ecx
jmp 0x4f3396
cmp eax, 0x54
jg 0x4f36d0
cmp eax, 0x53
jge 0x4f3806
sub eax, 0x50
je 0x4f3680
sub eax, 1
je 0x4f3250
sub eax, 1
jne case.default.0x4f3713
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x552f18]
push eax
call fcn.004eff31
mov eax, dword [0x587c28]
mov al, byte [eax]
test al, al
jne 0x4f3549
push 1
push dword [ebp + 8]
lea ecx, [ebp - 8]
call fcn.004f009f
jmp 0x4f33a0
movsx eax, al
sub eax, 0x30
js case.default.0x4f3713
cmp eax, 5
jae case.default.0x4f3713
lea eax, [eax*8 + 0x553258]
push eax
lea ecx, [ebp - 0x18]
call fcn.004eff31
mov eax, dword [0x587c28]
mov cl, byte [eax]
inc eax
mov dword [0x587c28], eax
cmp cl, 0x30
je 0x4f3646
cmp cl, 0x31
je 0x4f359a
jle 0x4f3594
cmp cl, 0x34
jle 0x4f36bc
dec eax
jmp 0x4f3391
mov eax, dword [ebp - 8]
lea ecx, [ebp - 0x10]
mov dword [ebp - 0x10], eax
mov eax, dword [ebp - 4]
mov dword [ebp - 0xc], eax
lea eax, [ebp - 0x18]
push eax
call fcn.004f0119
lea eax, [ebp - 0x20]
push eax
call fcn.004f431f
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004f007d
push eax
lea ecx, [ebp - 0x10]
call fcn.004f0119
lea eax, [ebp - 0x20]
push eax
call fcn.004f431f
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004f007d
push eax
lea ecx, [ebp - 0x10]
call fcn.004f0119
lea eax, [ebp - 0x20]
push eax
call fcn.004f431f
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004f007d
push eax
lea ecx, [ebp - 0x10]
call fcn.004f0119
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004f251e
pop ecx
pop ecx
push 0x29
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004f007d
push eax
lea ecx, [ebp - 0x10]
call fcn.004f0119
push 0x27
push dword [ebp + 8]
lea ecx, [ebp - 0x10]
call fcn.004f007d
jmp 0x4f33a0
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004f21dd
mov eax, dword [ebp - 0x20]
pop ecx
pop ecx
mov dword [ebp - 0x10], eax
lea ecx, [ebp - 0x10]
mov eax, dword [ebp - 0x1c]
push 0x20
mov dword [ebp - 0xc], eax
call fcn.004f0170
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x28]
push eax
lea ecx, [ebp - 0x10]
call fcn.004f005b
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
jmp 0x4f36c3
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x552f18]
push eax
call fcn.004eff31
push edi
lea eax, [ebp - 0x28]
push edi
push eax
call fcn.004f31e7
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 0x18], ecx
mov dword [ebp - 0x14], eax
test ecx, ecx
je 0x4f36bc
test eax, 0x400
jne case.default.0x4f3713
lea eax, [ebp - 0x18]
push eax
lea ecx, [ebp - 8]
push dword [ebp + 8]
call fcn.004f005b
jmp 0x4f33a0
cmp eax, 0x56
jle 0x4f3816
cmp eax, 0x57
jle case.default.0x4f3713
cmp eax, 0x59
jle 0x4f3806
cmp eax, 0x5f
jne case.default.0x4f3713
movsx eax, byte [ecx]
lea edx, [ecx + 1]
sub eax, 0x41
mov dword [0x587c28], edx
cmp eax, 0xd
ja case.default.0x4f3713
movzx eax, byte [eax + 0x4f387f]
jmp dword [eax*4 + 0x4f386f]
movsx eax, byte [edx - 1]
lea eax, [eax*8 + 0x552fe0]
jmp 0x4f3414
movsx eax, byte [edx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x552fe0]
push eax
call fcn.004efcf7
mov eax, dword [0x587c28]
cmp byte [eax], 0x3f
lea eax, [ebp - 0x28]
push eax
jne 0x4f376d
call fcn.004f22b4
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.004f0119
mov eax, dword [0x587c28]
cmp byte [eax], 0x40
jne 0x4f377c
inc eax
mov dword [0x587c28], eax
jmp 0x4f377c
call fcn.004f45fe
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.004f0119
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], 0x553920
push eax
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x1c], 2
call fcn.004f00c1
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov ecx, dword [ebp - 0x14]
jmp 0x4f3296
movsx eax, byte [edx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x552fe0]
push eax
call fcn.004efcf7
jmp 0x4f37d0
cmp al, 0x40
je 0x4f37e0
inc ecx
mov dword [0x587c28], ecx
lea ecx, [ebp - 0x18]
push eax
call fcn.004f0170
mov ecx, dword [0x587c28]
mov al, byte [ecx]
test al, al
jne 0x4f37bc
cmp al, 0x40
jne 0x4f3796
inc ecx
mov dword [0x587c28], ecx
jmp 0x4f3796
mov cl, byte [edx]
lea eax, [edx + 1]
mov dword [0x587c28], eax
cmp cl, 0x32
jne case.default.0x4f3713
push dword [ebp + 8]
call fcn.004f52db
pop ecx
jmp 0x4f33a0
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x552f18]
jmp 0x4f3414
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x552f18]
jmp 0x4f3247
mov eax, dword [ebp + 8]
mov dword [eax + 4], edi
mov byte [eax + 4], 2
mov dword [eax], edi
jmp 0x4f3299
xor edi, edi
inc edi
movsx eax, byte [esi - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x552df8]
push eax
call fcn.004eff31
test edi, edi
je 0x4f3250
cmp dword [ebp - 8], 0
je 0x4f328b
or dword [ebp - 4], 0x200
jmp 0x4f328b