07-11-2021, 07:50 PM
I'm not sure to really understand what you exactly want to to, but from what I understand I would suggest using a maskfile (see: https://hashcat.net/wiki/doku.php?id=mas...mask_files), with on the first line your mask with ?d for your 3rd char, and on the second line using a charset made of ?u?l?s (or whatever else you want) for the 3rd char.