DarkSide hackers have raked in more than $90 million in Bitcoin

The DarkSide ransomware group, which is thought to be behind the attacks on the Colonial pipeline, has made around $90 million in Bitcoin from 47 victims.

According to cyber security firm Elliptic's co-founder and chief scientist Tom Robinson, victims made just over $90 million in Bitcoin ransom payments to DarkSide, originating from 47 distinct wallets. According to DarkTracer, DarkSide ransomware has infected 99 organizations, which suggests that around 47% of victims paid a ransom, and the average payment was $1.9 million.

“To our knowledge, this analysis includes all payments made to DarkSide, however further transactions may yet be uncovered, and the figures here should be considered a low bound,” said Robinson.

Cyber criminal gangs such as DarkSide have established a ransomware-as-a-service business model where they develop the malware but allow other hackers to breach victims. DarkSide then splits the proceeds between themselves and their affiliates.

In DarkSide’s case, the developer reportedly takes 25% for ransoms less than $500,000, but this decreases to 10% for ransoms greater than $5 million.

Blockchain analysis makes money split clear, with the different shares going to separate Bitcoin wallets controlled by the affiliate and developer.

Robinson said the DarkSide developer has received Bitcoins worth $15.5 million (17%), with the remaining $74.7 million (83%) going to the various affiliates.

Further analysis allowed the firm to see where the cryptocurrency was being spent or exchanged. Most of the funds were sent to cryptoasset exchanges, where they can swap them for other cryptoassets, or fiat currency, said Robinson.

Robinson said that most cryptoasset exchanges comply with anti-money laundering (AML) regulations, verifying customers’ identity, and reporting suspicious activity, such as ransomware proceeds.

“However, some jurisdictions do not enforce these regulations, and it is to exchanges in these locations that much of the DarkSide ransomware proceeds are being sent,” said Robinson.

The DarkSide ransomware group, believed to be based in Eastern Europe or Russia, has recently disbanded after further investigations by US law enforcement. An email to DarkSide’s affiliates said that it was shutting up shop “due to the pressure of the US.”

However, many criminal gangs have been said they are disbanding only to show up again weeks or months later under a new name.