Electrum bitcoin wallet
Can I use hashcat against electrum bitcoin wallet?  


These wallets are only hashed with 2 rounds of SHA256 so it shouldn't be too difficult.
Electrum's KDF does not seem to be supported by hashcat currently, at least from what I can tell. There are other tools that do support electrum wallet cracking available, though you may not have GPU support. My personal suggestion in this case would be Gurnec's BTCRecover: https://github.com/gurnec/btcrecover/tre...btcrecover

According to https://github.com/magnumripper/JohnTheR...ssues/2504 work is being done to add support for Electrum's KDF to JTR.

If you would like to see it added to hashcat, you can submit a request via the hashcat Github page here: https://github.com/hashcat/hashcat/issues

Just make sure you follow the format explained in the FAQ here: https://hashcat.net/wiki/doku.php?id=fre...plish_this

If if helps you, here is a good example of an algorithm request that was accepted and added to hashcat: https://github.com/hashcat/hashcat/issues/1204