with a reputable, up-to-date antivirus program.
the file if you do not know the source.
If you can provide the source of the file or its content, I can help you with: Project.DeepWeb.rar
Running it through a VirusTotal scan (if I had an API connection, but you can do this directly). Understanding the risks associated with RAR files. Identifying what kind of file it is based on its structure. with a reputable, up-to-date antivirus program