CybersecurityNorth Korea Targeted Cybersecurity Researchers Using a Blend of Hacking and Espionage

By Paulo Shakarian

Published 4 February 2021

North Korean hackers have staged an audacious attack targeting cybersecurity researchers, many of whom work to counter hackers from places like North Korea, Russia, China and Iran. The attack involved sophisticated efforts to deceive specific people, which raises the level of social engineering, or phishing attacks, and enters the realm of spy tradecraft.

North Korean hackers have staged an audacious attack targeting cybersecurity researchers, many of whom work to counter hackers from places like North Korea, Russia, China and Iran. The attack involved sophisticated efforts to deceive specific people, which raises the level of social engineering, or phishing attacks, and enters the realm of spy tradecraft.

The attack, reported by Google researchers, centered on fake social media accounts on platforms including Twitter. The fake personas, posing as ethical hackers, contacted security researchers with offers to collaborate on research. The social media accounts included content about cybersecurity and faked videos purporting to show new cybersecurity vulnerabilities.

The hackers enticed the researchers to click links to shared code projects – repositories of software related to cybersecurity research – that contained malicious code designed to give the hackers access to the researchers’ computers. Several cybersecurity researchers reported that they fell victim to the attack.

From Phishing to Espionage
The lowest level of social engineering hack is a typical phishing attack: impersonal messages sent to many people in the hopes that someone will be duped into clicking on a malicious link. Phishing attacks have generally been on the rise since early 2020 – a side effect of the pandemic-driven work-from-home environment in which people are sometimes less vigilant. This is also why ransomware has become prevalent.

The next level of sophistication is spear-phishing. Here people are targeted with messages that include information that is specific to them or their organizations, which increases the likelihood that someone will click a malicious link.

The North Korean operation is at a higher level than spear-phishing because it targeted people who are security-minded by the nature of their occupation. This required the hackers to create convincing social media accounts complete with content about cybersecurity, including videos, that could fool cybersecurity researchers.

The North Korean operation highlights three important trends: stealing cyberweapons from industry, social media as a weapon, and the blurring of cyber and information warfare.

1. Theft of Cyberweapons from Industry
Before the North Korean operation, the theft of cyberweapons made headlines at the end of 2020. In particular, December’s FireEye breach resulted in the theft of tools used by ethical hackers. These tools were used to crack the security of corporate clients to show the clients their vulnerabilities.