dataleak

Executive Summary

Dataleak is a low-profile ransomware group identified as criminal actors with medium sophistication. Their primary motivation appears to be organizational gain, targeting victims for financial profit through ransomware attacks. Despite limited public intelligence, they have demonstrated some operational capability, particularly in Brazil, though their exact tools and origins remain unclear.

Goals & Targeting

Dataleak appears to target sectors where financial gain is achievable through ransomware attacks. While no specific industries have been identified, common targets for such groups often include healthcare, education, and small-to-medium enterprises due to their reliance on data and limited defensive measures. The targeting of Brazil suggests a focus on regional or language-specific victims, possibly leveraging local tools or communication channels. Their objectives are centered on stealing sensitive data and extorting payments through encryption.

Dataleak is a newly emerged or underdocumented ransomware group that has conducted at least six known attacks, including against entities in Brazil. The group's low profile suggests limited exposure to the broader threat intelligence community, making it challenging to attribute specific attack patterns or tools to them definitively. Their primary goal appears to be financial gain, aligning with common ransomware actor motivations. Dataleak has not been linked to high-profile victims beyond Brazil, indicating a possible focus on smaller or regional targets. The group's operational maturity is assessed as medium, implying they have developed basic attack infrastructure but lack the sophistication of mature APT groups. Their targeting strategy remains unclear due to limited data, though their activity in Brazil suggests a potential geographic preference or access to local victims.

Key Capabilities

• Ransomware deployment
• Data exfiltration techniques
• Basic initial access mechanisms
• Encryption of stolen data

MITRE ATT&CK Tactics

ATT&CK Techniques

Software / Tooling

Campaigns & Victims

Dataleak's campaign patterns remain largely unknown due to the lack of publicly available intelligence. They appear to have targeted six victims in Brazil, which suggests a local or regional focus. Their operational tempo is low but active, with activity identified around 2022-12-02. Given their limited visibility, Dataleak may be a smaller or emerging threat group attempting to establish itself in the ransomware ecosystem.

IOC Patterns

• Ransomware-related file encryption patterns
• Presence of unknown executables on systems
• Encrypted files with appended extensions
• Network lateral movement within infected networks

Recommended Actions

• Implement robust endpoint detection and response (EDR) solutions to detect ransomware activity.
• Monitor for unusual network behavior, including lateral movements and data exfiltration attempts.
• Enforce multi-factor authentication (MFA) for critical systems to mitigate unauthorized access.
• Conduct regular backups of sensitive data and ensure they are stored offline or in secure cloud storage.
• Educate employees about phishing and social engineering tactics to reduce the risk of initial compromise.

Suggested Tags