Actually, I'm going to say NKorea screwed the pooch with this one. China, their closest (and maybe only) ally, is now royally pissed at them.
China isn't really their ally, they have interest in keeping the lid on NK and trying to maintain status quo. Rowdy, aggressive NK is propably the last thing they wanted - refugees, interrupting Eastern Asian trade, possible war and US/ROK forces propably winning and then being at Chinese doorsteps, blackmailing, possibly nukes.. No one wants to have anything like that in his backyard. China's like a big brother who is defending and suppressing and keeping down and bribing his hostile brother, hoping that one day he will be sensible to stop pulling all kinds of stupid ****.
Recent Chinese press releases have been quite hostile to NK, and no wonder - the status quo, best of really bad options, is now threatened.