Watch for unauthorized logins on your social media or bank accounts and consider changing your passwords from a separate, clean device.
Historically, files named similarly to "video_x-mas.7z" have been used to deliver various types of malicious software: video_x-mas.7z
A genuine high-quality video is usually quite large. If the .7z file is only a few hundred kilobytes or a few megabytes, it likely contains a script or a small executable, not a video. Watch for unauthorized logins on your social media