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Yes my mum's account cuz she forgot the password but gave me a list of passwords to try bruteforcing it.

Not familiar with the way you proposed. I'll check that out tomorrow!

Basically I want username and password values to enter them in Burp and it does the job for me.

I see. Good luck with that. But there is (ideally) no API endpoint that accepts username/password. It’s all about cryptography, which means each client signs and broadcasts their data and never reveals their secret.

Tho a hacker that has access to your Bitcoin/etc... wallet.dat can brutforce your qt password if you have one...