Archives like .7z or .zip found on public sharing sites under "password list" names are frequently "trojanized." They may contain infostealers or ransomware disguised as text files to infect the person attempting to download the list.
If you are concerned your credentials are in this or similar lists, use services like Have I Been Pwned to check your email address against known breaches. 660 mega.nz by muchospasswords.7z
You can report the specific MEGA link to their abuse department at abuse@mega.io to have the content disabled. Archives like