The coordinated effort included indictments, a technical report and blame for the Microsoft Exchange Server hack.

The Nigerian national also must pay back nearly $900,000 to victims, a judge ordered.

The seizure from DarkSide actors' virtual currency wallet is part of a Biden administration anti-ransomware barrage.

The documents also revealed information on al Qaeda and counterintelligence work.

Anton Bogdanov originally faced up to 27 years in prison.

DOJ had hailed the indictment of the man and a co-conspirator as "the single most significant law enforcement disruption of the Darknet to date."