Randomly received 25,000 of a token I’ve never heard of. Scam?

I connected my Trezor today and saw I have a balance of 25,000 of "ZKMONEY.ORG", listed under ETH, which was deposited a few months ago. As far as I know I didn't do anything to cause this and I can't find any mention of it on the internet. It has a page on CoinMarketCap but that's it. I tried visiting the URL (using Tor) but it doesn't load. Obviously the tokens are worthless, but is this some sort of scam? How does it work? It's quite unnerving having it sitting there next to my actual holdings when I have no idea what it is or how it got there.