: If this was sent to you by someone you know, contact them through a different channel (like a phone call) to see if their account was hacked.
: If you have already downloaded the file, do not extract or run it . Move it directly to your Trash/Recycle Bin and empty it.
: If you must investigate the file for professional reasons, upload the file (or the URL where you found it) to VirusTotal to see if other security engines have flagged it.