Lazarus, a hacking group linked to North Korea, may have been behind this month's theft of $60 million from Taiwan's Far Eastern International Bank, according to BAE Systems PLC researchers.

The cyberattack, in which malware was used to steal the money through the international Swift banking network, bore "some of the hallmarks" of Lazarus, according to a BAE blog post on Monday.

Lazarus and its offshoots have been blamed for attacks ranging from last year's heist of Bangladesh's central bank to assaults on cryptocurrency exchanges and South Korean ATMs. North Korea is becoming increasingly starved of hard currency as the United Nations imposes sanctions amid a standoff with the U.S. over Kim Jong Un's nuclear weapons program.