Fine:
The International Intellectual Property Alliance's 2016 Special report on Ukraine:
https://iipa.org/files/uploads/2017/12/2016SPEC301UKRAINE.pd...
(page 4)
Or their entry on the EU's Counterfeit and Piracy Watch List:
https://web.archive.org/web/20190617061827/http://trade.ec.e...
(page 19)
> According to the music industry Mp3va.com and Mp3caprice.com are popular unlicensed pay
per download websites hosted allegedly in Ukraine, which provide mainly music.
> […]
> These sites claim to have a copyright licence for their business from the Ukrainian collecting
society called AVTOR, which reportedly has no mandate to represent foreign rightholders.
I'm sure you'll come up with another rationalization, but your money is definitely not going to the artists (unless perhaps you are listening exclusively to Ukranian bands). Just be honest with yourself: you find mp3caprice.com's service convenient and are willing to pay them for it. Just don't pretend that it is the legal route.
If you actually wish to know if they are legal today (rather than just pretend they are), why not ask your national recording industry association? They'll know.