Agida is a dark hardcore band with violin and a female vocalist from Grodno, Belarus
Not an actual release, just a track that was put up on the band's VK page. From what I can tell, the vocalist is also the violinist, so I'm not sure how much violin will be in future songs.
Update: Agida released a demo in 2016 that you can download on their Bandcamp. Unfortunately, the only strings on it are a short violin intro in the opening track.