I have a 2013-2014 240-byte wallet backup file from Bitcoin Wallet (by )Andreas Schildbach). I generated the passphrase using a pattern of two English proper nouns and 1-2 numbers.
I cannot positively say I know the proper nouns, or the capitalization. I do not know the overall length. am not positive the numbers are adjacent in the passphrase.
I am aware of Hashcat generally, and have done basic attacks on this passphrase using my best guess wordlist and standard wordlists. What are some more advanced technique ideas I can apply to this?