North Korean cryptocurrency thieves tricked a Binance software engineer into downloading malware onto their work-issued computer during a fake job interview process before last week’s record-breaking $6.3 billion heist.
In an incident report published on Tuesday, the cryptocurrency exchange said several techniques - including social engineering via fake job interviews, malware downloads, compromised internal AI tooling, endpoint takeover, and an “advanced transaction-authorization method” - led to the October 29 security breach.
“Our current investigation indicates that this was a sophisticated, multi-stage campaign,” the incident report said. “It was not a single isolated breach or a simple phishing incident.”
Over the weekend, the FBI attributed the theft to TraderTraitor, a North Korean hacking operation linked to Lazarus Group, known for combining espionage with massive cryptocurrency heists. The Pyongyang-backed crew is also highly adept at job market scams - both posing as IT workers, who are then hired by Western companies, and as potential employers to lure software engineers into downloading malware and infecting corporate devices.
A Finance company which has its production systems in the same network as worker computers which aren’t locked-down tight is basically amateur hour every hour of the day every day of the month every month of the year.
You can never assume that workers won’t do stupid shit like downloading random software into their work computers even when its a fuckingly obvious bad idea for most people to do such stupid shit - it only takes one idiot, naive fool or even momentary distraction of somebody who should’ve known better to end up with your network hacked, so you always treat such devices as possibly contaminated.