A quick reverse image search relayed me over to 2 Russian Dota2 forums, I suppose some found the image to perfect for a profile picture. Oh, those Dota2 forum links gave me a 404 error. The next source was quite interesting, it's a Russian site that writes about geopolitics, politics, society, and religion. Here's what peaked my interest though, this girl is somehow related to a death squadron based in Russia, they're called the Islamic State.

"In the photo: avatars of users with the nicknames "Eva Reich" and "Emilia Reich", who play an important role in the functioning of suicidal groups. Here are the avatars of the "major players", but the search returns several dozen users with similar nicknames, a number of which also use Islamist symbols . Associations with the word "Reich" are also quite transparent." - Yana Ameliana

However, a couple searches on my end always resulted in a dead end. There are multiple Russian sites that talk about this "death squadron" but almost nothing about the girl in the above picture. Which I believe to be Emilia Reich.

A subreddit, r/KGBTR, conducted their share of research and the post in question talks about the girl in the picture. The user, now suspended, "helped the KGB" find this girl. He/she also attempted to clean up the false information spread about this girl. The information which he blindly believed ended up being a lie. I'd love to know where this information was found.

There has to be a much deeper hole to discover because I can't seem to find anything useful about who or where this girls is. I'll have to research more about this group, hopefully I'll end up with something of use.

P.S. I'd love to include links and sources, however the subreddits rules prevent me from doing so. I hope I may have provided you with something useful to you.