Function at 0x4c39da
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [0x54283c]
push ebx
push esi
push edi
mov cl, byte [eax]
lea esi, [eax + 1]
xor edi, edi
mov dword [0x54283c], 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 0x4c3b9b
je 0x4c402d
test cl, cl
je 0x4c3b81
cmp cl, 0x2f
jle case.default.0x4c3f06
cmp cl, 0x31
jle 0x4c3a91
cmp cl, 0x39
jg case.default.0x4c3f06
movsx eax, byte [esi - 1]
lea eax, [eax*8 + 0x517fb8]
push eax
lea ecx, [ebp - 8]
call fcn.004c0720
cmp dword [ebp - 8], 0
je 0x4c3a7e
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], str.operator
push eax
lea ecx, [ebp - 0x28]
mov dword [ebp - 0x1c], 8
call fcn.004c04e6
lea ecx, [ebp - 8]
push ecx
lea ecx, [ebp - 0x20]
push ecx
mov ecx, eax
call fcn.004c084a
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 0x4c3b22
lea eax, [ebp - 0x20]
push eax
call fcn.004c4e69
push eax
lea eax, [ebp - 0x18]
push 0x3c
push eax
call fcn.004c07db
add esp, 0x10
lea ecx, [ebp - 0x10]
push eax
call fcn.004c0908
mov ebx, dword [ebp - 0x10]
test ebx, ebx
je 0x4c3ae9
mov eax, dword [ebx]
mov esi, dword [eax + 8]
mov ecx, esi
call dword [0x4fd368]
mov ecx, ebx
call esi
cmp al, 0x3e
jne 0x4c3ae9
push 0x20
lea ecx, [ebp - 0x10]
call fcn.004c095f
push 0x3e
lea ecx, [ebp - 0x10]
call fcn.004c095f
mov eax, dword [ebp + 0x10]
test eax, eax
je 0x4c3afd
mov byte [eax], 1
mov esi, dword [0x54283c]
cmp byte [esi], 0
jne 0x4c3b18
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
mov ecx, dword [ebp - 0xc]
jmp 0x4c3a89
mov ebx, dword [ebp - 0x10]
inc esi
mov dword [0x54283c], esi
push edi
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004c5dc9
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
mov dword [0x54283c], esi
test ecx, ecx
je 0x4c3b68
cmp byte [esi - 1], 0x31
jne 0x4c3b68
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x20]
push 0x7e
push eax
call fcn.004c07db
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 0x4c3a7e
lea eax, [ebp - 0x10]
push eax
lea ecx, [ebp - 8]
call fcn.004c0908
jmp 0x4c3a7e
lea eax, [esi - 1]
mov dword [0x54283c], eax
mov ecx, dword [ebp + 8]
push 1
call fcn.004c0554
mov eax, dword [ebp + 8]
jmp 0x4c3a8c
cmp cl, 0x42
je 0x4c402a
jle case.default.0x4c3f06
cmp cl, 0x5a
jle 0x4c402d
cmp cl, 0x5f
jne case.default.0x4c3f06
movsx eax, byte [esi]
lea ecx, [esi + 1]
mov dword [0x54283c], ecx
cmp eax, 0x4f
jg 0x4c3cde
cmp eax, 0x44
jge 0x4c3ff9
cmp eax, 0x39
jg 0x4c3c5a
je 0x4c3c2d
test eax, eax
je 0x4c3c22
cmp eax, 0x2f
jle case.default.0x4c3f06
cmp eax, 0x36
jle 0x4c3c12
cmp eax, 0x38
jg case.default.0x4c3f06
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5180d8]
mov ecx, dword [ebp + 8]
push eax
call fcn.004c04e6
jmp 0x4c3b93
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5180d8]
jmp 0x4c3a3a
mov dword [0x54283c], esi
jmp 0x4c3b89
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x5180d8]
push eax
call fcn.004c04e6
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 0x4c3a8c
cmp eax, 0x3f
je 0x4c3c8b
cmp eax, 0x40
jle case.default.0x4c3f06
cmp eax, 0x42
jle 0x4c3ff9
push 1
lea eax, [ebp - 0x18]
push edi
push eax
call fcn.004c4ce8
mov edx, dword [ebp - 0x14]
add esp, 0xc
or edx, 0x1000
jmp 0x4c3c4a
mov dl, byte [ecx]
lea eax, [ecx + 1]
mov dword [0x54283c], eax
test dl, dl
je 0x4c3cd3
mov esi, dword [ebp + 8]
cmp dl, 0x30
je 0x4c3cac
mov dword [esi + 4], edi
mov byte [esi + 4], 2
mov dword [esi], edi
jmp 0x4c3ccc
push edi
lea eax, [ebp - 0x18]
push 1
push eax
call fcn.004c4ce8
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 0x4c3a8c
mov dword [0x54283c], ecx
jmp 0x4c3b89
cmp eax, 0x54
jg 0x4c3ec3
cmp eax, 0x53
jge 0x4c3ff9
sub eax, 0x50
je 0x4c3e73
sub eax, 1
je 0x4c3a43
sub eax, 1
jne case.default.0x4c3f06
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x5180a0]
push eax
call fcn.004c0720
mov eax, dword [0x54283c]
mov al, byte [eax]
test al, al
jne 0x4c3d3c
push 1
push dword [ebp + 8]
lea ecx, [ebp - 8]
call fcn.004c088e
jmp 0x4c3b93
movsx eax, al
sub eax, 0x30
js case.default.0x4c3f06
cmp eax, 5
jae case.default.0x4c3f06
lea eax, [eax*8 + 0x5183e0]
push eax
lea ecx, [ebp - 0x18]
call fcn.004c0720
mov eax, dword [0x54283c]
mov cl, byte [eax]
inc eax
mov dword [0x54283c], eax
cmp cl, 0x30
je 0x4c3e39
cmp cl, 0x31
je 0x4c3d8d
jle 0x4c3d87
cmp cl, 0x34
jle 0x4c3eaf
dec eax
jmp 0x4c3b84
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.004c0908
lea eax, [ebp - 0x20]
push eax
call fcn.004c4b42
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004c086c
push eax
lea ecx, [ebp - 0x10]
call fcn.004c0908
lea eax, [ebp - 0x20]
push eax
call fcn.004c4b42
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004c086c
push eax
lea ecx, [ebp - 0x10]
call fcn.004c0908
lea eax, [ebp - 0x20]
push eax
call fcn.004c4b42
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004c086c
push eax
lea ecx, [ebp - 0x10]
call fcn.004c0908
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004c2d0d
pop ecx
pop ecx
push 0x29
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.004c086c
push eax
lea ecx, [ebp - 0x10]
call fcn.004c0908
push 0x27
push dword [ebp + 8]
lea ecx, [ebp - 0x10]
call fcn.004c086c
jmp 0x4c3b93
lea eax, [ebp - 0x20]
push edi
push eax
call fcn.004c29cc
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.004c095f
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x28]
push eax
lea ecx, [ebp - 0x10]
call fcn.004c084a
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
jmp 0x4c3eb6
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x5180a0]
push eax
call fcn.004c0720
push edi
lea eax, [ebp - 0x28]
push edi
push eax
call fcn.004c39da
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 0x4c3eaf
test eax, 0x400
jne case.default.0x4c3f06
lea eax, [ebp - 0x18]
push eax
lea ecx, [ebp - 8]
push dword [ebp + 8]
call fcn.004c084a
jmp 0x4c3b93
cmp eax, 0x56
jle 0x4c4009
cmp eax, 0x57
jle case.default.0x4c3f06
cmp eax, 0x59
jle 0x4c3ff9
cmp eax, 0x5f
jne case.default.0x4c3f06
movsx eax, byte [ecx]
lea edx, [ecx + 1]
sub eax, 0x41
mov dword [0x54283c], edx
cmp eax, 0xd
ja case.default.0x4c3f06
movzx eax, byte [eax + 0x4c4072]
jmp dword [eax*4 + 0x4c4062]
movsx eax, byte [edx - 1]
lea eax, [eax*8 + 0x518168]
jmp 0x4c3c07
movsx eax, byte [edx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x518168]
push eax
call fcn.004c04e6
mov eax, dword [0x54283c]
cmp byte [eax], 0x3f
lea eax, [ebp - 0x28]
push eax
jne 0x4c3f60
call fcn.004c2aa3
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.004c0908
mov eax, dword [0x54283c]
cmp byte [eax], 0x40
jne 0x4c3f6f
inc eax
mov dword [0x54283c], eax
jmp 0x4c3f6f
call fcn.004c4e21
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.004c0908
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], 0x518a98
push eax
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x1c], 2
call fcn.004c08b0
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov ecx, dword [ebp - 0x14]
jmp 0x4c3a89
movsx eax, byte [edx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x518168]
push eax
call fcn.004c04e6
jmp 0x4c3fc3
cmp al, 0x40
je 0x4c3fd3
inc ecx
mov dword [0x54283c], ecx
lea ecx, [ebp - 0x18]
push eax
call fcn.004c095f
mov ecx, dword [0x54283c]
mov al, byte [ecx]
test al, al
jne 0x4c3faf
cmp al, 0x40
jne 0x4c3f89
inc ecx
mov dword [0x54283c], ecx
jmp 0x4c3f89
mov cl, byte [edx]
lea eax, [edx + 1]
mov dword [0x54283c], eax
cmp cl, 0x32
jne case.default.0x4c3f06
push dword [ebp + 8]
call fcn.004c5b04
pop ecx
jmp 0x4c3b93
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5180a0]
jmp 0x4c3c07
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5180a0]
jmp 0x4c3a3a
mov eax, dword [ebp + 8]
mov dword [eax + 4], edi
mov byte [eax + 4], 2
mov dword [eax], edi
jmp 0x4c3a8c
xor edi, edi
inc edi
movsx eax, byte [esi - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x517f80]
push eax
call fcn.004c0720
test edi, edi
je 0x4c3a43
cmp dword [ebp - 8], 0
je 0x4c3a7e
or dword [ebp - 4], 0x200
jmp 0x4c3a7e