How ScarCruft APT group enhances its toolkit with a powerful Dolphin backdoor

ScarCurft aka Reaper, APT 37, Ricochet Chollima is North Korean espionage group, active since 2012. ScarCruft has targeted South Korea Newspaper with a watering hole attack in the last year.

In this attack, they used BLUELIGHT backdoor as the final payload, and the Dolphin backdoor was deployed on specific victims by BLUELIGHT. Upon execution of payload on selected ones, it looks for important files on the drives of hacked systems and exfiltrates them to Google Drive.