A8ix Mulshipattern20181080pzee5webdl

This is straightforward. The content (movie, game, or software) was likely copyrighted or released in 2018.

A classic marker for vertical resolution. 1080 means 1080p (1920x1080 pixels), indicating Full HD video.

A proper scene filename for a WebDL looks like this: a8ix mulshipattern20181080pzee5webdl

Movie.Name.2018.1080p.WEB-DL.x264.AAC-GROUP.mkv

Applying that template, the original string might have been something like: This is straightforward

Multi.Pattern.2018.1080p.WEB-DL.x264-ZEE5.mkv

But somewhere along the line, heavy corruption occurred: a misconfigured download manager

Thus, a8ix mulshipattern20181080pzee5webdl is a recovered fragment from a damaged filesystem, a misconfigured download manager, or a manual typo when renaming.