: 2021-06-27_02-52-12 indicates the file was likely generated or saved on June 27, 2021, at 02:52:12 (local or UTC time).
If you are analyzing this for a forensic or OSINT task, consider the following methods: video_2021-06-27_02-52-12-yKyUtmyL.mp4
: Check the file's MD5 or SHA-1 hash on platforms like VirusTotal or Hybrid Analysis . Sometimes, malware or specific CTF samples are indexed by their hash rather than their original filename. video_2021-06-27_02-52-12-yKyUtmyL.mp4