If you must interact with it, use a sandbox environment or upload the file to VirusTotal to see if other security engines have flagged it.
Giving hackers remote access to your webcam and files. 41955.rar
If you didn't specifically request this file from a verified source, delete it. If you must interact with it, use a
Authentic software providers will never send you a password-protected RAR file via email. If you must interact with it
Recording every stroke you type, including credit card numbers. How to Stay Safe