Is this a md5 or what?

Hello
I’m curious about what is “3d5db5d62da242afa97152fdda5a1180” after “(domain name)/3d5db5d62da242afa97152fdda5a1180/(file name).m3u8” (e.g. https://filestorage-pt1-encrypt-erraticstuff-ef.eu.org/3d5db5d62da242afa97152fdda5a1180/my_playlist.m3u8) ?
Is that md5 of that file?