18/01/2022

BlueNoroff Threat Group Targeting Crypto SMBs

The APT (advanced persistent threat) group, BlueNoroff, which is part of the North Korea-associated Lazarus Group, has been identified as the perpetrator of a multitude of attacks targeting SMBs, with victims suffering major losses in cryptocurrency.


According to a Kaspersky research group, BlueNoroff’s campaign, known as SnatchCrypto, fixes its crosshairs on companies dealing with cryptocurrencies, smart contracts, blockchain, decentralized finance, and the financial technology industry.

The research group stated that the companies were specifically targeted, and that startups are generally no stranger to receiving unsolicited, malicious messages and documents. Further insight was offered in a recent blog post published by the researchers:

“As most cryptocurrency businesses are small or medium-sized startups, they cannot invest lots of money into their internal security system. The actor understands this and takes advantage by using elaborate social engineering schemes.”

The SnatchCrypto campaign involves hackers trying to manipulate the target company through the pretence of being a legitimate, existing venture capital firm; although researchers observed close to twenty venture firm names used for the attacks, researchers believe the actual firms had no involvement.

The researchers reported that the hackers behind the attacks send startup personnel a “full-featured Windows backdoor with surveillance functions, disguised as a contract or another business file.” 

Once the file is opened on an internet-connected device, a macro-enabled document will be obtained to deploy malware; the malicious programme will then send the target’s general info and PowerShell agent to the hackers, creating a backdoor.

Next, BlueNoroff will deploy additional tools, including a keylogger and screenshot-taker, to snoop on the victim’s activities. Finally, following weeks or even months’ worth of monitoring, the hackers will close in on a single target and put to use the sensitive data they’ve scraped in order to steal their cryptocurrency.

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