An investigation into domains associated with the LummaC2 infostealing-malware campaign revealed a broader network of nearly 500 domains with highly malicious risk scores. These domains share similar registration patterns, including the use of Eastern European names and the inbox[.]eu email domain. The domains predominantly advertise technical education courses, but are likely lures for malware delivery. Four domains were identified as LummaC2 login panels. The campaign's infrastructure uses specific TLDs, naming conventions, and a Hong Kong address linked to OFAC-sanctioned entities. Security teams are advised to monitor for similar domain patterns, scrutinize suspicious training sites, and educate users about the risks.
Check Point Research uncovered a malware campaign exploiting expired Discord invite links to redirect users to malicious servers. The attackers use a combination of techniques including ClickFix phishing, multi-stage loaders, and time-based evasions to deliver AsyncRAT and a customized Skuld Stealer targeting crypto wallets. The campaign leverages trusted cloud services for payload delivery and data exfiltration to avoid detection. The operation continues to evolve, with threat actors now able to bypass Chrome's App Bound Encryption using adapted tools like ChromeKatz to steal cookies from new Chromium browser versions. The campaign highlights how subtle features in Discord's invite system can be exploited as attack vectors.
The UNC1151 threat actor is conducting a spearphishing campaign exploiting a critical vulnerability (CVE-2024-42009) in the Roundcube webmail client. Malicious JavaScript embedded in phishing emails installs a stealthy Service Worker in victims' browsers upon opening the email, intercepting login credentials and exfiltrating them without further user interaction. A second vulnerability (CVE-2025-49113) may be chained to increase persistence and impact. Stolen credentials enable attackers to access mailboxes, harvest address books, and propagate phishing internally, facilitating lateral movement. The campaign primarily targets Polish organizations but also threatens neighboring Central European countries with significant Roundcube deployments. Organizations are urged to patch vulnerabilities, monitor for unusual Service Worker activity, enforce multi-factor authentication, and enhance email filtering to mitigate risks.
A destructive attack on Ukrainian critical infrastructure using a new wiper malware called 'PathWiper' has been observed. The attack, attributed to a Russia-nexus APT group, utilized a legitimate endpoint administration framework to deploy the wiper across connected endpoints. PathWiper overwrites file system artifacts with random data, targeting physical drives, volumes, and network shared drives. Its capabilities are similar to HermeticWiper, previously used against Ukrainian entities. The malware's sophisticated approach to identifying and corrupting connected drives and volumes distinguishes it from earlier wipers. This attack underscores the ongoing threat to Ukrainian infrastructure despite the prolonged conflict with Russia.
International law enforcement agencies have taken additional actions in Operation Endgame, targeting cybercriminal organizations, particularly those behind DanaBot. DanaBot is a powerful modular malware family written in Delphi, capable of keylogging, capturing screenshots, recording desktop videos, exfiltrating files, injecting content into web browsers, and deploying second-stage malware. It operates as a Malware-as-a-Service platform, enabling various attacks. DanaBot has been used in targeted attacks against government officials in the Middle East and Eastern Europe, and for DDoS attacks against Ukrainian servers. The malware implements a custom binary protocol encrypted with RSA and AES, and uses hardcoded C2 servers with Tor as a backup communication channel. Over 50 nicknames have been associated with DanaBot affiliates.
