Cyber attacks are probably the least interesting enterprise that North Korea is involved in [1]
They're also involved quite heavily in the illegal drug trade and bootlegging cigarettes and alcohol, using their embassies and diplomats as a distribution network, as well as counterfeiting currency and pharmaceuticals, running an international restaurant chain [2], building statues for tinpot dictators [3], shipping citizens off to Russia as "contract workers", smuggling ivory, trafficking arms, and previously leased out embassy buildings in Berlin to a hostel [4]
Not to say that they are the culprit; just that state sponsored and and money driven aren't necessarily exclusive.