New with Hashcat

[Alcanjp]

well hashcat could do this for you on the fly without any need for a premade wordlist

bruteforce and mask-attack is more or less the same, you can use a masks like ?a?a?a?a?a?a?a?a?a?a to mimic plain bruteforce

also you can tell hashcat to start with 10 chars minimum, but luks is considerd slow and bruteforcing will be for sure not really sucesssful

try running hashcat -b -m 14600
and see your guessing rate

Also I believe that last character was the letter x or X  how can I state that this letter needs to be present as the last character? 
btw thanks for your help.