From January through May 2026, Mandiant identified a financially motivated data theft extortion campaign executed by the threat cluster UNC3753 (also tracked as “Luna Moth,” “Chatty Spider,” and “Silent Ransom Group”) targeting dozens of organizations across professional, legal, and financial services in the United States.
UNC3753 leverages voice phishing (vishing) and social engineering deception techniques to achieve remote access into corporate environments. Using pretexts such as data migration or invoice related emails, the threat actors initiate phone conversations posing as IT support and convince targets to host screen-sharing sessions and download remote monitoring and management (RMM) utilities.
Read more…
Source: Mandiant
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- SunCrypt Ransomware sheds light on the Maze ransomware cartel
August 26, 2020
A ransomware named SunCrypt has joined the ‘Maze cartel,’ and with their membership, we get insight into how these groups are working together. In June, we broke the story that the Maze threat actors created a cartel of ransomware operations to share information and techniques to help each other extort their victims. When first started, this cartel ...
- US government warns of North Korean hackers targeting banks worldwide
August 26, 2020
North Korean hackers tracked as BeagleBoyz have been using malicious remote access tools as part of ongoing attacks to steal millions from international banks according to a joint advisory issued today by several U.S. Government agencies. The joint release says that North Korea’s BeagleBoyz hacking group has once again started robbing banks through remote internet access ...
- New Zealand stock exchange halted trading after DDoS attacks
August 26, 2020
New Zealand’s stock exchange (NZX) has been impacted by distributed denial-of-service (DDoS) attacks during the last two days, forcing it to shut down trading until the connectivity issues were resolved. NZX operates New Zealand’s capital, risk, and commodity markets, and it supplies market information including real-time stock quotes, market data and news. The stock market announced around ...
- Transparent Tribe: Evolution analysis, part 2
August 26, 2020
Transparent Tribe, also known as PROJECTM or MYTHIC LEOPARD, is a highly prolific group whose activities can be traced as far back as 2013. In the last four years, this APT group has never taken time off. They continue to hit their targets, which typically are Indian military and government personnel. This is the second of ...
- Hackers for hire attack architecture firm via 3ds Max exploit
August 26, 2020
An advanced hackers-for-hire group has compromised computers of an architecture firm involved in luxury real-estate projects worth billions of US dollars. The group carries out espionage operations, the attack vector being a malicious plugin for the Autodesk 3ds Max software for creating professional 3D computer graphics. According to an investigation from Bitdefender, the unnamed victim is an ...
- Security researcher discloses Safari bug after Apple delays patch
August 25, 2020
A security researcher has published details today about a Safari browser bug that could be abused to leak or steal files from users’ devices. The bug was discovered by Pawel Wylecial, co-founder of Polish security firm REDTEAM.PL. Wylecial initially reported the bug to Apple earlier this spring, in April, but the researcher decided to go public with ...