0hbmbb1tzglkvu2g9g40i_source.mp4 -

If you recently ran file recovery software, it often assigns these strings to files where the original metadata (the real name) was lost. Safety and Content

Since the filename is randomized, the content could be anything from a viral meme to a personal recording. If you did not intentionally download this file or do not recognize the source website, before opening it, as randomized filenames are occasionally used in phishing or malware delivery.

If you were watching a video on a social media site and checked your downloads or temporary internet files, the site may have saved it under this encoded name.