01-26-2014, 06:56 AM
It's hashcat's forum here so use -m 2811 with your hashalt pair. I doubt that you have bruteforced up to 15 chars and that's a very bad approach anyway. Your hash is crackable but the difficulty depends only on the actual password. It takes experience to become a good cracker. Practice on unsalted hash first, see what passwords or pattern are popular and then apply what you've learned to your hashes.