what's so elite about them? >In January 2015, an innocuous-looking email had been sent to several Bangladesh Bank employees. It came from a job seeker calling himself Rasel Ahlam. His polite enquiry included an invitation to download his CV and cover letter from a website. In reality, Rasel did not exist - he was simply a cover name being used by the Lazarus Group, according to FBI investigators. At least one person…
I agree. Just a bit of social engineering and a trojan. The main difference is that they know they have their country's backing and they don't need to account for that risk, allowing them to aim higher.
I assume hackers in other countries simply use a few layers of tor and bounce boxes.