Upload the file to VirusTotal . It will check the file against over 70 different antivirus engines and tell you if it's a known threat.
If you must open it, use a virtual machine or a tool like Any.Run to see what the file does when executed in a safe environment. CCIH2.rar
Where did you find it? If it was from a link shortener like ya.cc/CciH2 (which is currently used for Russian e-commerce promos), it may just be a mislabeled or automated download. Upload the file to VirusTotal