Nefilim
Intelligence Profile
According to Vitali Kremez and Michael Gillespie, this ransomware shares much code with Nemty 2.5. A difference is removal of the RaaS component, which was switched to email communications for payments. Uses AES-128, which is then protected RSA2048.
Threat Analysis
Nefilim is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.
Financially motivated threat actors like Nefilim prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
With high sophistication, Nefilim is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.