Right-click the file and select Properties (Windows) or Get Info (Mac). Look for hidden comments, unusual creation dates, or artist names that might be clues.
Check subreddits like r/ARG or r/FoundFootage for mentions of this specific file. 29082020b.mp4
Could you provide on where you found this file or what happened when you watched it? This will help me give you a more specific guide. Cannot upload video file - mp4 - E-Learning Heroes Right-click the file and select Properties (Windows) or