So I decided to do some research on my free time, and judging by the date Booming Track was released in 2008, probably around the time YAWA could take down videos easily (their last reported request was in 2012 according to Google).
While looking into Kontor New Media Music, I saw the they are infamous
for claiming songs (even if it's not theirs), but there hasn't been a report on them taking down a video (until now). I did come across something interesting, though. Apparently, Kontor Records (which was last seen trying to take down materials from Google's webiste they believed to be infringing, last year) started up again in July, and they have been requesting MANY links to be taken down, the last one being on August 10th. https://www.google.com/transparencyreport/removals/copyright/owners/35444/Kontor-Records/
This is pretty much what I found while doing some research, it may not be 100% accurate though. I'll find the link I used so you can check it out.
EDIT: It seems like Kontor Records isn't targeting YouTube videos, but sites that offer illegal downloads. I still don't understand why Kontor would send a copyright strike.