: This looks like a specific internal release code , series ID , or tracking number used by the uploader or a content distribution system.
Converting "болно" to Cyrillic - Stack Overflow : This looks like a specific internal release
: This is a standard MPEG-4 Part 14 video container used for storing video, audio, and subtitles. How to Fix or Identify the Content you can try the following:
If you need to know what this video actually is, you can try the following: : This looks like a specific internal release