It is rare to be provided an inside view on how major cyber espionage campaigns are conducted within the digital realm. The only transparency afforded is a limited view of victims, a malware sample, and perhaps the IP addresses of historical command and control (C2) infrastructure.
The Operation North Star campaign we detailed earlier this year provided just this. This campaign used social media sites, spearphishing and weaponized documents to target employees working for organizations in the defense sector. This early analysis focused on the adversary’s initial intrusion vectors, described the first stages of how an implant was installed, and how it interacted with the Command and Control (C2) server.