Blender was used to launder $20.5 million of the $620 million that the Treasury Department alleges North Korean hackers stole in March.

Treasury: "By operating vast server farms that sell virtual currency mining capacity internationally, these companies help Russia monetize its natural resources."

The Cybersecurity and Infrastructure Security Agency is attributing the campaign to hackers known as the Lazarus Group.

The address received $600 million in Ethereum and other digital currency during the March attack, crypto-tracking company Chainalysis said.

Narcotics trafficking and money laundering were the main business for Hydra, which researchers say was the largest dark-web market.

The list also includes Evgeny Viktorovich Gladkikh, the researcher indicted for creating the malware, which targets industrial control systems.