: A binary file (e.g., data.dat ) containing the actual malware, which is decrypted and executed in memory by the loader [5, 6]. Payload: PlugX / Hodur
: The RAR archive serves as a container for a multi-stage infection chain. It usually employs DLL Side-Loading , a signature technique of this threat actor [2, 5]. Infection Chain & Contents RurikonF02.rar
: A clean, digitally signed application (e.g., a vulnerable version of a security tool or a common utility like VLC or Word) [5]. : A binary file (e
The malware communicates with external servers to receive instructions. Historically, "Rurikon" campaigns use dedicated IP addresses or domain names that mimic legitimate government or news portals [4, 6]. Indicator Type Typical Observation DLL Side-Loading Actor Mustang Panda (TA416) Targeting Government, NGOs, Research institutes Malware Family PlugX (Hodur variant) Infection Chain & Contents : A clean, digitally
The file is associated with a targeted phishing campaign linked to the Mustang Panda (also known as TA416, RedDelta, or Bronze President) APT group . This specific archive is part of an ongoing trend where the group uses decoy documents related to international affairs—often involving European or Asian diplomacy—to deliver custom malware [1, 5]. Technical Analysis Overview
When extracted, the archive typically contains three primary components designed to bypass security software:
: Uploading, downloading, and executing files [5].