http://www.vox.com/2014/12/29/7460277/north-korea-sony-icc
So what was North Korea after? Suki Kim suggests, in Slate, a very compelling theory: North Korea wants to distract from a landmark United Nations effort to refer North Korea’s leadership to the International Criminal Court, which is nearing its final stages.
Now THIS is the first article I’ve read that makes any sense over the whole North Korea thing.