Upload the .rar file to VirusTotal to see if 70+ antivirus engines flag it as malicious.
To help you figure out exactly what this is, could you tell me: Timerunner.rar
While the specific .rar file is suspicious, the name could refer to: A hidden object adventure game series. Upload the
If the archive requires a password provided on a shady website or in a YouTube description, it is likely designed to bypass antivirus scanners. a game cheat
What were you (e.g., a game cheat, a productivity tool, a movie)? What is the approximate file size ?
(e.g., Discord, YouTube, a specific forum)?