Cybersecurity Brief
Thursday 22 May 2025
In this brief Coinbase, Kettering Health, Samlify, Docker, Stark Industries, Unimicron, +9 more
- Vendors
- Coinbase, Kettering Health, Samlify, Docker, Stark Industries, Unimicron, Presto, Wazuh, M&S, Microsoft
- Threat actors
- Lumma, 3AM, APT28, Vixen Panda, Aquatic Panda
Major Incidents and Breaches
Marks & Spencer Cyberattack
- Marks & Spencer, a major UK retailer, suffered a cyberattack resulting in widespread operational disruption and a projected profit loss of up to £300 million ($402 million). The company anticipates continued online disruptions until at least July.
Kettering Health Ransomware Attack
- Kettering Health, a US healthcare network, experienced a ransomware attack leading to a system-wide outage and the cancellation of both inpatient and outpatient procedures.
Coinbase Data Breach
- Cryptocurrency exchange Coinbase reported a data breach impacting 69,461 customers. Both customer and corporate data were stolen. Coinbase is offering a $20 million reward for information leading to the perpetrators.
Lumma Infostealer Disruption
- Law enforcement agencies, with support from tech companies, disrupted the Lumma infostealer malware operation, seizing over 2,300 domains and dismantling a major malware-as-a-service infrastructure used globally.
Newly Discovered Vulnerabilities
Samlify SSO Critical Flaw
- A critical authentication bypass vulnerability in Samlify allows attackers to impersonate admin users by injecting unsigned malicious assertions into otherwise signed SAML responses.
Unpatched Windows Server Flaw
- A vulnerability in the delegated Managed Service Account (dMSA) feature of Windows Server, enabled by default, can be exploited to compromise Active Directory environments.
Notable Threat Actor Activity
Russian State-Sponsored Campaigns
- Russian APT28 (Fancy Bear/Forest Blizzard) has been actively targeting Western logistics and technology firms since 2022 to disrupt and surveil aid routes to Ukraine, exploiting email and VPN vulnerabilities.
PureRAT Malware Campaign Targeting Russian Firms
- A significant increase (4x in 2025) in PureRAT malware activity, with phishing campaigns targeting Russian businesses. These attacks are deploying both PureRAT and PureLogs malware.
Chinese APTs Intensify Activity in Latin America
- Beijing-sponsored groups such as Vixen Panda and Aquatic Panda, alongside financially motivated Chinese cybercriminals, have increased attacks on organisations in Central and South America.
Industrial Ransomware Surge
- Multiple industrial firms, including Unimicron and Presto, have recently been hit by ransomware attacks, indicating a rising trend in targeting the manufacturing and industrial sector.
3AM Ransomware Tactics
- The 3AM ransomware group is employing sophisticated social engineering, including spoofed IT support calls and email bombing, to obtain remote access credentials from employees.
Trends, Tools, and Tactics
Dero Miner Cryptojacking via Docker API
- Ongoing cryptojacking campaigns are exploiting exposed Docker APIs to deploy Dero cryptocurrency miners in containerised environments.
Malicious Chrome Extensions
- Over 100 malicious Chrome browser extensions have been discovered impersonating legitimate brands (e.g., Fortinet, YouTube, VPNs) to steal cookies and enable remote code execution.
Malware Delivery via Social Media Ads
- Fake Facebook ads and pages promoting counterfeit Kling AI are being used to distribute RAT malware, potentially reaching over 22 million users.
Malicious PWA JavaScript Redirects
- New campaigns are injecting malicious JavaScript into websites to redirect mobile users to fraudulent Chinese adult-content Progressive Web Apps.
CI/CD Pipeline Security
- Increased focus on securing CI/CD workflows, with tools like Wazuh being highlighted for monitoring and protecting automated development pipelines.
Phishing Detection Tactics
- Emphasis on rapid phishing detection, with case studies such as Tycoon2FA illustrating the effectiveness of proactive monitoring and response.
Regulatory and Policy Developments
EU Sanctions on Stark Industries
- The European Union has imposed sanctions on the web-hosting provider Stark Industries and its leadership for facilitating destabilising cyberattacks.
Russia Mandates Tracking App for Foreigners
- Russia has introduced a law requiring all foreign nationals in the Moscow region to install a government tracking application.
NIST ‘LEV’ Equation
- The US National Institute of Standards and Technology (NIST) has introduced the ‘LEV’ equation, providing a mathematical model to assess the likelihood of a vulnerability being exploited, potentially enhancing vulnerability management and prioritisation.