That server is in Germany, no way it's possible to have 50ms to NK. Also traditional traceroute has 500ms+ RTT.
They are faking/spoofing the ICMP responses.
They are also prepending their route advertisement with corresponding AS paths to further disguise it.
From TeliaSonera looking glass http://lg.telia.net/
126.96.36.199/24 *[BGP/170] 02:10:36, MED 0, localpref 150, from 188.8.131.52
AS path: 2914 39138 22351 131279 51040 I
AS39138 is probably the real upstream provider of TBP. They peer with AS51040(TPB network) and TPB router prepends AS22351(Intelsat) and AS131279(North Korean ISP) into it's AS Path before advertising it to AS39138.
I get about 40 ms from south germany and about 30 ms from france to thepiratebay.se ; but almost 400 ms to www.kcna.kp