So atom, main developer of @hashcat, used the "rapid prototyping in Python" plugin of the new "assimilation bridge" in the new hashcat 7¹, with some success in our DEF CON password CTF win this past weekend (hosted by @jabbercracky).
Afterwards, atom realized it would make a good case study for how to use the new feature, so he wrote it up:
https://hashcat.net/forum/thread-13346.html
If you do exploration of mystery hash types (either for CTFs, or in the real world) ... this approach should absolutely be in your toolbox.
¹Note that some work was done during the contest to make the Python bridge plugin better for these use cases; next minor release of 7 will have it, or grab hashcat.net/beta/ or the latest GitHub main branch.
Wyatt Neal
Royce Williams