If possible, I'd cut the female fitting away so you just have
straight pipe on each end you can connect with Fernco couplings.

What's the benefit to cutting the hub away?

Just a supply issue. If you can find the coupling to adapt PVC to a cast
iron hub, great. I've never seen any of those locally, but standard
Fernco's are easy to find. Unless the hub is part of a cast iron Tee or
something, I see no value in keeping it. Cut back to straight pipe and use
a common fitting.

Anthony