Unless this is a specific file from a personal archive or a very new niche community, it likely does not refer to a known piece of significant media. It is most likely a misleadingly named asset designed to pique curiosity. or a specific mobile game that might be related?
This guide explains what to do with a media file named "New Sofia Sweety Bonuslevel 03 004.mp4" — how to verify it, play it, inspect metadata, convert or compress it, and safely store or share it. Assumes you have a standard desktop OS (Windows/macOS/Linux). New Sofia Sweety Bonuslevel 03 004 mp4