Binance Helps Take Down Cybercriminal Ring Laundering $500M in Ransomware

The Bulletproof Exchanger Project Part II: Operation FANCYCAT

Ransomware has become the biggest threat to online security, affecting all industries connected to the internet, from supply chains to healthcare institutions.

Therefore, a critical part of Binance’s commitment to ensuring the secure and sustainable growth of the global crypto ecosystem involves fighting different strains of ransomware and fraud. Earlier this year we released a case study on our first Bulletproof Exchanger Project, a dedicated anti-ransomware initiative where we worked with the Ukraine Cyber Police to arrest a major cybercriminal group laundering over $42M of illicit funds.

More recently Binance Security has been taking part in an international investigation with Ukraine Cyber Police, Cyber Bureau of Korean National Police Agency, US Law Enforcement, Spanish Civil Guard, and Swiss Federal Office of Police, among others, in apprehending a prolific cybercriminal ring. The group -- also known as FANCYCAT -- has been running multiple criminal activities: distributing cyber attacks; operating a high-risk exchanger; and laundering money from dark web operations and high-profile cyber attacks such as Cl0p and Petya ransomware. In all, FANCYCAT is responsible for over $500M worth of damages in connection with ransomware and millions more from other cybercrimes.

Operation FANCYCAT

Over the past year, Binance has expanded its in-house AML detection and analytics capabilities. Based on research and analysis, as well as an understanding of cybercriminals' history and cashout tactics, Binance arrived at the conclusion that the biggest security problem in the industry today is money connected to cyberattacks being laundered through nested services and parasite exchanger accounts that live inside macro VASPs, including exchanges like These criminals enjoy taking advantage of reputable exchanges’ liquidity, diverse digital asset offerings and well-developed APIs.

In a majority of the cases associated with illicit blockchain flows coming onto exchanges, the exchange is not harbouring the actual criminal group themselves, but rather being used as a middleman to launder stolen profits. Figure 1 shows an example of the money laundering process on an exchange in relation to cyber attacks:

Blockchain analysis shows a network of money launderers living inside macro exchanges which deposit and withdraw to each other to wash the money. Understanding this diagnosis, Binance is taking the necessary steps to prevent illicit activity. They apply a two-pronged approach: 1) implementing detection mechanisms to identify and offboard suspicious accounts 2) collaborating with law enforcement to build cases and take down criminal groups.

They applied the two-pronged approach to the FANCYCAT investigation: AML detection and analytics program detected suspicious activity on and expanded the suspect cluster. Once they mapped out the complete suspect network, they worked with private sector chain analytics companies TRM Labs and Crystal (BitFury) to analyze on-chain activity and gain a better understanding of this group and its attribution. Based on analysis, they found that this specific group was not only associated with laundering Cl0p attack funds, but also with Petya and other illegally sourced funds. This led to the identification and eventual arrest of FANCYCAT.

They are continuing to investigate the FANCYCAT criminal syndicate across multiple jurisdictions and the connections associated with other cyber attacks.

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