Disavow Search links Sites

I had alot of backlinks from this ddl search sites and I think this are the sites that make me drop rankings and make alot of my post dramatically decrease rank or removed from google
rapid-search-engine.com
filecrop.com
filecatch.com
rapidsharemix.com

I want to know if I need to disavow every link from the said sites or I just need to mention the main site?

Thanks in advance