I forgot the password for my Blackcoin QT wallet. For this wallet I used a standard phrase plus some numbers. I wrote it down. So, I still remember most of the password. Probably I just mistyped one letter.
After several unsuccessful tries I started to work on a (restricted) brute force attack. First attempt was to use hashcat on the hash of the wallet. I tried to retrieve the hash from the wallet with bitcoin2john.py (since Blackcoin is a fork of Bitcoin). But it is not working - just getting the error message "Wallet is not encrypted" (also tried this with a new wallet).
I could also write a script or program to call the Blackcoin QT wallet with different passwords, but it seems that this wallet does not have any cmd options to start it with a password.
Does anybody of you have a new idea on this?
Did you try this one?
https://github.com/gurnec/btcrecover