North Korean state-backed hackers appear to be cooperating with Eastern European cybercriminals, a report said on Wednesday, a finding that suggests digital gangsters and state-backed spies are finding common ground online.

Mountain View, California-based SentinelOne says that the Lazarus Group — which American prosecutors accuse of organizing the leak of emails from Sony Pictures and stealing millions of dollars from the Central Bank of Bangladesh — is getting access to some of its victims through a cybercrime gang dubbed "TrickBot."

"For me it's the biggest crimeware story since I don't-know-when," said Vitali Kremez of SentinelOne. "The Lazarus group has a relationship with the most sophisticated, most resourceful Russian botnet operation on the landscape."