Mandiant says a global-scale phishing campaign targeted worldwide organizations with never-before-seen malware strains delivered via specially-tailored lures. The attacks hit at least 50 orgs from a wide variety of industries in two waves, on December 2nd and between December 11th and 18th. The malware used by UNC2529 in these attacks is heavily obfuscated to hinder analysis, and it attempts to evade detection by deploying payload in-memory whenever possible. While the threat group’s primary target area was the US, the attacks also targeted organizations from EMEA (Europe, the Middle East, and Africa), Asia, and Australia.
Source: https://www.bleepingcomputer.com/news/security/worldwide-phishing-attacks-deliver-three-new-malware-strains/

