Sapphire Werewolf polishes Amethyst stealer to attack over 300 companies


Since March 2024, the BI.ZONE Threat Intelligence team has been tracking the cluster of activity dubbed Sapphire Werewolf.

The threat actor targets Russia’s industries, such as education, manufacturing, IT, defense, and aerospace engineering. Over 300 attacks were carried out using Amethyst, an offshoot of the popular open‑source SapphireStealer. The attackers disguise the malware as an enforcement order, a Central Election Committee leaflet, and even as a decree from the President of Russia.

Read more…
Source: BI.ZONE


Sign up for our Newsletter


Related:

  • FOG Ransomware Spread by Cybercriminals Claiming Ties to DOGE

    April 21, 2025

    During trend Micro researchers monitoring of the ransomware threat landscape, they discovered samples with infection chain characteristics and payloads that can be attributed to FOG ransomware. A total of nine samples were uploaded to VirusTotal between March 27 and April 2, which the researchers recently discovered were multiple ransomware binaries with .flocked extension and readme.txt notes. ...

  • Phishing attacks leveraging HTML code inside SVG files

    April 21, 2025

    With each passing year, phishing attacks feature more and more elaborate techniques designed to trick users and evade security measures. Attackers employ deceptive URL redirection tactics, such as appending malicious website addresses to seemingly safe links, embed links in PDFs, and send HTML attachments that either host the entire phishing site or use JavaScript to ...

  • Google Confirms Gmail Warning – 3 Billion Users Must Now Act

    April 20, 2025

    Google has confirmed another attack on Gmail users that combines inherent vulnerabilities in the platform with devious social engineering. The net result is a flurry of headlines and viral social media posts followed by an urgent platform update. Google’s security warning is clear. Users should stop using their passwords. This latest attack has been bubbling on ...

  • FBI Warns of Scammers Impersonating the IC3

    April 18, 2025

    The Federal Bureau of Investigation (FBI) warns the public about an ongoing fraud scheme where criminal scammers are impersonating FBI Internet Crime Complaint Center (IC3) employees to deceive and defraud individuals. Between December 2023 and February 2025, the FBI received more than 100 reports of IC3 impersonation scams. How It Works Complainants report initial contact from the ...

  • Cascading Shadows: An Attack Chain Approach to Avoid Detection and Complicate Analysis

    April 16, 2025

    In December 2024, Palo Alto Unit 42 researchers uncovered an attack chain that employs distinct, multi-layered stages to deliver malware like Agent Tesla variants, Remcos RAT or XLoader. Attackers increasingly rely on such complex delivery mechanisms to evade detection, bypass traditional sandboxes, and ensure successful payload delivery and execution. The phishing campaign we analyzed used deceptive ...

  • QR codes sent in attachments are the new favorite for phishers

    April 3, 2025

    Recently Malwarebytes Labs researchers have been seeing quite a few phishing campaigns using QR codes in email attachments. The lure and the targets are varied, but the use of a QR code to get someone to visit the phishing site is fast becoming a preferred method for cybercriminals. There are several reasons why cybercriminals might want ...