http://kaizushbvywkdpkl3ousfhvvjbfvkluuzcbcsjipkxdkaxerzd3vmjyd.onion/page.php?q=blog&b=yes-thats-my-ip
They are located in Belarus, because with what is going on in the world at the moment, I can be pretty confident that if American or European law enforcement ask for any favours the Belarus is going to tell them to fuck off. Anyway, that is all you are seeing with these pingbacks. At least this gossip is better founded than shit out there about exposed admin login forms, because the solution to that is a strong password - and everyone uttering such crap is a fake hacker idiot, stuck on...