Hmck.rar -

: Password-protected challenges for security competitions.

: Compressed payloads used in phishing or targeted attacks. hmck.rar

If you have this file, you can check its safety by uploading it to a multi-engine scanner like VirusTotal to see if it has been previously analyzed by the security community. : Password-protected challenges for security competitions

Could you provide more on where you encountered this file or what it is supposed to contain? hmck.rar