Adversary: Twisted Spider - Threat Actor | Crowdstrike Adversary Universe

Adversary

Twisted Spider

Origins

Eastern Europe, Russian Federation

Community identifiers

Maze Team

Twisted Spider is the criminal group behind the development and operation of Maze ransomware.

While the ransomware was first observed in May 2019, the group gained notoriety in November 2019 with their brazen attitude toward victims and their willingness to speak with security researchers as they began using Big Game Hunting (BGH) tactics to target organizations and businesses. While other actors have threatened to release data in the past if the ransom wasn’t paid, Twisted Spider has made this act their anthem and created a dedicated leak site (DLS) if victims are unresponsive to the group or refuse to pay ransoms.

Maze ransomware has been observed distributed via exploit kits (EK), spam campaigns, and through acquiring RDP credentials for access. The group is capable of moving laterally and exfiltrating data for extortion. It is likely that Twisted Spider targets victims opportunistically and does not focus on specific sectors.While Maze ransomware could be operated as a ransomware-as-a-service (RaaS), it is more likely that Maze is being operated by a single group based on their interaction with the media and leakage of data at a central location.

On 1 November 2020, Twisted Spider published a press release indicating they were shutting down all operations related to Maze ransomware. It is possible that Twisted Spider—or a subsection of the criminal group—are responsible for the operation of both Egregor and Maze ransomware.

Technical Tradecraft

  • Gaining initial access via exploit kits, email delivery, or RDP access via open ports
  • Use of ChaCha and RSA-2048 encryption algorithms to encrypt file contents
  • Sends information about the victim system to a set of IP addresses, encrypted using ChaCha with a hard-coded key and a randomized nonce
  • Drops a ransom note in each directory that files have been encrypted named DECRYPT-FILES.txt

Target Nations

  • Flag Icon of the country Algeria

    Algeria

  • Flag Icon of the country Argentina

    Argentina

  • Flag Icon of the country Australia

    Australia

  • Flag Icon of the country Austria

    Austria

  • Flag Icon of the country Belgium

    Belgium

  • Flag Icon of the country Brazil

    Brazil

  • Flag Icon of the country Canada

    Canada

  • Flag Icon of the country China

    China

  • Flag Icon of the country Colombia

    Colombia

  • Flag Icon of the country Costa Rica

    Costa Rica

  • Flag Icon of the country Czech Republic

    Czech Republic

  • Flag Icon of the country Denmark

    Denmark

  • Flag Icon of the country Egypt

    Egypt

  • Flag Icon of the country France

    France

  • Flag Icon of the country Germany

    Germany

  • Flag Icon of the country Hong Kong

    Hong Kong

  • Flag Icon of the country India

    India

  • Flag Icon of the country Italy

    Italy

  • Flag Icon of the country Japan

    Japan

  • Flag Icon of the country Kenya

    Kenya

  • Flag Icon of the country Luxembourg

    Luxembourg

  • Flag Icon of the country Macedonia

    Macedonia

  • Flag Icon of the country Netherlands

    Netherlands

  • Flag Icon of the country Nigeria

    Nigeria

  • Flag Icon of the country Norway

    Norway

  • Flag Icon of the country Oman

    Oman

  • Flag Icon of the country Puerto Rico

    Puerto Rico

  • Flag Icon of the country Saudi Arabia

    Saudi Arabia

  • Flag Icon of the country Singapore

    Singapore

  • Flag Icon of the country South Africa

    South Africa

  • Flag Icon of the country South Korea

    South Korea

  • Flag Icon of the country Spain

    Spain

  • Flag Icon of the country Sri Lanka

    Sri Lanka

  • Flag Icon of the country Switzerland

    Switzerland

  • Flag Icon of the country Thailand

    Thailand

  • Flag Icon of the country United Arab Emirates

    United Arab Emirates

  • Flag Icon of the country United Kingdom

    United Kingdom

  • Flag Icon of the country United States

    United States

  • Flag Icon of the country Vietnam

    Vietnam