Based on a search of available public information, [1].
If you can tell me (a specific website, forum, or message board) or what type of content you expected it to contain (e.g., a game mod, a document, media), I can try to help you identify it further.
The name contains a mix of English ("Y3"), Japanese/Chinese characters ("жњ€", which generally relates to 'month' or 'moon' in Asian languages), and a standard file extension ( .7z - a 7-Zip compressed archive).
A part of a multi-volume archive ( .7z.001 , etc.), as indicated by the "-4" in the name.