Russians likely, but it's hard to tie it a specific entity or group, unlike coordinated rug pulls or Lazarus. This makes it harder to investigate, but someone like Zach can try to coordinate where the funds are being sent, such as exchanges, to try and to freeze the funds. Kucoin is a common one

Who knows if they tried. But hardly worth making a video "i tried to find the source but I didnt find anything. Some guess it is the russians. The end".