Function at 0x644beab8
Capabilities:
Parse credit card information

Disassembly:
sub esp, 0x3c
mov dword [esp + 0x1c], ecx
mov eax, dword [0x6452e02c]
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.64429ff0
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 0x644beb64
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.644a55d0
sub esp, 8
jmp 0x644befaf
cmp byte [esp + 0x26], 0x5c
jne 0x644bec6b
mov eax, dword [esp + 0x1c]
mov edx, dword [eax + 0x94]
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x98]
cmp edx, eax
jne 0x644beb9b
mov dword [esp + 4], str.Unexpected_end_of_regex_when_escaping.
mov dword [esp], 2
call fcn.644d12e8
mov eax, dword [esp + 0x1c]
mov ecx, eax
call fcn.6445a314
xor eax, 1
test al, al
jne 0x644bebe0
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x28
je 0x644bebe7
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x29
je 0x644bebe7
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x7b
je 0x644bebe7
mov eax, 1
jmp 0x644bebec
mov eax, 0
test al, al
je 0x644bec4d
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 0x644bec3a
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 0x644bec44
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0xb8]
mov ecx, edx
call eax
jmp 0x644befaf
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 0x644bee49
mov eax, dword [esp + 0x1c]
mov ecx, eax
call fcn.6445a2cc
test al, al
je 0x644bec9d
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3f
jne 0x644bec9d
mov eax, 1
jmp 0x644beca2
mov eax, 0
test al, al
je 0x644bee00
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 0x644becf2
mov dword [esp + 4], str.Unexpected_end_of_regex_when_in_an_open_parenthesis.
mov dword [esp], 5
call fcn.644d12e8
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3a
jne 0x644bed2d
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 0x644befaf
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x3d
jne 0x644bed8a
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.644a55d0
sub esp, 8
jmp 0x644befaf
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x21
jne 0x644bede7
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.644a55d0
sub esp, 8
jmp 0x644befaf
mov dword [esp + 4], str.Invalid_special_open_parenthesis.
mov dword [esp], 5
call fcn.644d12e8
jmp 0x644befaf
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x80]
mov dword [esp + 4], 2
mov dword [esp], eax
call fcn.6448f81c
test eax, eax
setne al
test al, al
je 0x644bee36
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 6
jmp 0x644befaf
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 5
jmp 0x644befaf
cmp byte [esp + 0x26], 0x29
jne 0x644bee63
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 8
jmp 0x644befaf
cmp byte [esp + 0x26], 0x5b
jne 0x644beee6
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 0x644beed3
mov eax, dword [esp + 0x1c]
mov eax, dword [eax + 0x94]
movzx eax, byte [eax]
cmp al, 0x5e
jne 0x644beed3
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 0x644befaf
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 9
jmp 0x644befaf
cmp byte [esp + 0x26], 0x7b
jne 0x644bef0b
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x7c], 1
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], 0xc
jmp 0x644befaf
cmp byte [esp + 0x26], 0x5d
je 0x644bef7b
cmp byte [esp + 0x26], 0x7d
je 0x644bef7b
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.64429ff0
sub esp, 8
mov byte [esp + 0x27], al
mov eax, dword [esp + 0x28]
movzx eax, byte [eax]
test al, al
je 0x644befae
mov eax, dword [esp + 0x28]
movzx eax, byte [eax]
cmp byte [esp + 0x27], al
jne 0x644bef74
mov eax, dword [esp + 0x28]
mov edx, dword [eax + 4]
mov eax, dword [esp + 0x1c]
mov dword [eax + 0x84], edx
jmp 0x644befaf
add dword [esp + 0x28], 8
jmp 0x644bef49
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.644a55d0
sub esp, 8
jmp 0x644befaf
nop
mov eax, dword [esp + 0x2c]
sub eax, dword [0x6452e02c]
je 0x644befc0
call fcn.644015c0
add esp, 0x3c
ret