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.

: Telegram often appends unique strings to saved media files to prevent overwriting. video_2021-06-27_02-52-12-yKyUtmyL.mp4

: Check the very beginning or end of the video for "steganography"—flags hidden in single frames or hidden within the audio track using a spectrograph. : Check the file's MD5 or SHA-1 hash