If you must see what is inside, use an isolated environment like Windows Sandbox or a dedicated Virtual Machine (VM).
Compressed archives are often used to deliver: flowerhasty.7z
If this was sent via email or downloaded from an unfamiliar site, it is likely a "malspam" (malicious spam) attachment. If you must see what is inside, use
Based on available technical databases and security intelligence, there is no public record of a specific file named . flowerhasty.7z
Upload the file to VirusTotal to check it against 70+ different antivirus engines.
To give an attacker control of your camera and keyboard. Recommended Actions
To grab browser passwords and session cookies. Ransomware: To encrypt your personal files.