Custom brute-force attack

[mika09]

This cannot be done by hashcat, as mentioned it would require additional scripting. Hashcats purpose is to reverse hashes to their plaintext and not the other way around. 

You can always use hashcat's mask as a pipe to whatever script you want to make using --stdout. This will print all the results but you would need to run that thru md5 encryption and alter it as you require.

How can I run Hashcat with additional scripting?