Saturday, July 13, 2024

Attackers profited more than $300,000 with new SamSam Ransomware Campaign

SamSam Ransomware campaign evolution continues and this time a new variant but there is no difference in the encryption mechanism when compared to old variants. With the new variant some string obfuscation and anti-analysis techniques added to make detection difficult.

The SamSam ransomware campaign targetting multiple industries including Government, Healthcare, ICS and also the individuals associated with Healthcare sector.

The new variant was observed by Talos in conjunction with Cisco IR Services.Researchers said ” The initial infection vector for these ongoing attacks is currently unknown. History of SamSam indicates that attackers may follow their previous modus operandi of exploiting a host and then laterally moving within their target environment to plant and later run the SamSam ransomware”.

The new ransomware variant is encrypted one and some anti-forensic methods, as like the previous variants the deployment of the ransomware is manual and the symmetric keys generated randomly based on each file.

Also Read Ransomware Attack Response and Mitigation Checklist

Threat actors hardcoded the Tor onion service and the Bitcoin wallet address in the payload. As like any other ransomware SamSam variant also assure ‘we don’t want to damage our reliability’ and ‘we are honest’. Also, they advertise offer free decryption for two files.

SamSam Ransomware mechanism

With the new variant, attackers employ a new methodology called “runner” which can search for .stubbin extension in its execution directory, and this file contains the encrypted Samsam ransomware.

Researchers said The new version also obfuscates functions, class names and strings, including the list of targeted file extensions, the help file contents and environment variables, this time using DES encryption with a fixed hard-coded key and the IV.

Threat actors profited approximately 30.4 BTC which equals $325,217.07 approximately with the new variant according to the bitcoin wallet[1MddNhqRCJe825ywjdbjbAQpstWBpKHmFR] observed by Talos.

What next: if you’re Infected

Disconnect the Network
Determine the Scope
Understand the version or Type of Ransomware
Determine the Strains of Ransomware
Fast Emergency Response


Latest articles

mSpy Data Breach: Millions of Customers’ Data Exposed

mSpy, a widely used phone spyware application, has suffered a significant data breach, exposing...

Advance Auto Parts Cyber Attack: Over 2 Million Users Data Exposed

RALEIGH, NC—Advance Stores Company, Incorporated, a prominent commercial entity in the automotive industry, has...

Hackers Using ClickFix Social Engineering Tactics to Deploy Malware

Cybersecurity researchers at McAfee Labs have uncovered a sophisticated new method of malware delivery,...

Coyote Banking Trojan Attacking Windows Users To Steal Login Details

Hackers use Banking Trojans to steal sensitive financial information. These Trojans can also intercept...

Hackers Created 700+ Fake Domains to Sell Olympic Games Tickets

As the world eagerly anticipates the Olympic Games Paris 2024, a cybersecurity threat has...

Japanese Space Agency Spotted zero-day via Microsoft 365 Services

The Japan Aerospace Exploration Agency (JAXA) has revealed details of a cybersecurity incident that...

Top 10 Active Directory Management Tools – 2024

Active Directory Management Tools are essential for IT administrators to manage and secure Active...
Guru baran
Guru baran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles