Function at 0x6397edb8
Capabilities:
Parse credit card information

Disassembly:
sub esp, 0x3c
mov dword [esp + 0x1c], ecx
mov eax, dword [0x639ee02c]
mov dword [esp + 0x2c], eax
xor eax, eax
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea ecx, [eax + 1]
mov edx, dword [esp + 0x1c]
mov dword [edx + 0x94], ecx
movzx eax, byte [eax]
mov byte [esp + 0x26], al
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x9c]
movsx edx, byte [esp + 0x26]
mov dword [esp + 4], 0x20
mov dword [esp], edx
mov ecx, eax
call fcn.638ea2f0
sub esp, 8
movsx edx, al
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x8c]
mov dword [esp + 4], edx
mov dword [esp], eax
call sub.msvcrt.dll_strchr
test eax, eax
sete al
test al, al
je 0x6397ee64
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 1
mov eax, dword [esp + 0x1c]
add eax, 0xa0
movsx edx, byte [esp + 0x26]
mov dword [esp + 4], edx
mov dword [esp], 1
mov ecx, eax
call fcn.639658d0
sub esp, 8
jmp 0x6397f2af
cmp byte [esp + 0x26], 0x5c
jne 0x6397ef6b
mov eax, dword [esp + 0x1c]
mov edx, dword [eax + 0x94]
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x98]
cmp edx, eax
jne 0x6397ee9b
mov dword [esp + 4], str.Unexpected_end_of_regex_when_escaping.
mov dword [esp], 2
call fcn.639915e8
mov eax, dword [esp + 0x1c]
mov ecx, eax
call fcn.6391a614
xor eax, 1
test al, al
jne 0x6397eee0
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x28
je 0x6397eee7
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x29
je 0x6397eee7
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x7b
je 0x6397eee7
mov eax, 1
jmp 0x6397eeec
mov eax, 0
test al, al
je 0x6397ef4d
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xbc]
mov edx, eax
mov eax, dword [esp + 0x1c]
add edx, eax
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xb8]
and eax, 1
test eax, eax
je 0x6397ef3a
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xbc]
mov ecx, eax
mov eax, dword [esp + 0x1c]
add eax, ecx
mov ecx, dword [eax]
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xb8]
sub eax, 1
add eax, ecx
mov eax, dword [eax]
jmp 0x6397ef44
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xb8]
mov ecx, edx
call eax
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea ecx, [eax + 1]
mov edx, dword [esp + 0x1c]
mov dword [edx + 0x94], ecx
movzx eax, byte [eax]
mov byte [esp + 0x26], al
cmp byte [esp + 0x26], 0x28
jne 0x6397f149
mov eax, dword [esp + 0x1c]
mov ecx, eax
call fcn.6391a5cc
test al, al
je 0x6397ef9d
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3f
jne 0x6397ef9d
mov eax, 1
jmp 0x6397efa2
mov eax, 0
test al, al
je 0x6397f100
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea edx, [eax + 1]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x94], edx
mov eax, dword [esp + 0x1c]
mov edx, dword [eax + 0x94]
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x98]
cmp edx, eax
sete al
test al, al
je 0x6397eff2
mov dword [esp + 4], str.Unexpected_end_of_regex_when_in_an_open_parenthesis.
mov dword [esp], 5
call fcn.639915e8
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3a
jne 0x6397f02d
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea edx, [eax + 1]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x94], edx
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 6
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3d
jne 0x6397f08a
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea edx, [eax + 1]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x94], edx
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 7
mov eax, dword [esp + 0x1c]
add eax, 0xa0
mov dword [esp + 4], 0x70
mov dword [esp], 1
mov ecx, eax
call fcn.639658d0
sub esp, 8
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x21
jne 0x6397f0e7
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea edx, [eax + 1]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x94], edx
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 7
mov eax, dword [esp + 0x1c]
add eax, 0xa0
mov dword [esp + 4], 0x6e
mov dword [esp], 1
mov ecx, eax
call fcn.639658d0
sub esp, 8
jmp 0x6397f2af
mov dword [esp + 4], str.Invalid_special_open_parenthesis.
mov dword [esp], 5
call fcn.639915e8
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x80]
mov dword [esp + 4], 2
mov dword [esp], eax
call fcn.6394fb1c
test eax, eax
setne al
test al, al
je 0x6397f136
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 6
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 5
jmp 0x6397f2af
cmp byte [esp + 0x26], 0x29
jne 0x6397f163
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 8
jmp 0x6397f2af
cmp byte [esp + 0x26], 0x5b
jne 0x6397f1e6
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x7c], 2
mov eax, dword [esp + 0x1c]
mov byte [eax + 0x90], 1
mov eax, dword [esp + 0x1c]
mov edx, dword [eax + 0x94]
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x98]
cmp edx, eax
je 0x6397f1d3
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x5e
jne 0x6397f1d3
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 0xa
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
lea edx, [eax + 1]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x94], edx
jmp 0x6397f2af
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 9
jmp 0x6397f2af
cmp byte [esp + 0x26], 0x7b
jne 0x6397f20b
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x7c], 1
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 0xc
jmp 0x6397f2af
cmp byte [esp + 0x26], 0x5d
je 0x6397f27b
cmp byte [esp + 0x26], 0x7d
je 0x6397f27b
mov eax, dword [esp + 0x1c]
mov dword [esp + 0x28], eax
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x9c]
movsx edx, byte [esp + 0x26]
mov dword [esp + 4], 0
mov dword [esp], edx
mov ecx, eax
call fcn.638ea2f0
sub esp, 8
mov byte [esp + 0x27], al
mov eax, dword [esp + 0x28]
movzx eax, byte [eax]
test al, al
je 0x6397f2ae
mov eax, dword [esp + 0x28]
movzx eax, byte [eax]
cmp byte [esp + 0x27], al
jne 0x6397f274
mov eax, dword [esp + 0x28]
mov edx, dword [eax + 4]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], edx
jmp 0x6397f2af
add dword [esp + 0x28], 8
jmp 0x6397f249
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 1
mov eax, dword [esp + 0x1c]
add eax, 0xa0
movsx edx, byte [esp + 0x26]
mov dword [esp + 4], edx
mov dword [esp], 1
mov ecx, eax
call fcn.639658d0
sub esp, 8
jmp 0x6397f2af
nop
mov eax, dword [esp + 0x2c]
sub eax, dword [0x639ee02c]
je 0x6397f2c0
call fcn.638c15c0
add esp, 0x3c
ret