Dragonforce Strikes Mausolff Immobilien with Ransomware

Ransomware

Summary

On July 15, 2025, the ransomware group Dragonforce publicly claimed responsibility for an attack targeting Mausolff Immobilien, a Germany-based company specializing in real estate. According to the threat actor’s post, they intend to release sensitive data unless negotiations are initiated.


Incident Report

FieldDetails
TargetMausolff Immobilien
Domain
CountryGermany
Attacking GroupDragonforce
Date ReportedJuly 15, 2025
Threat Actor Statement“The full leak will be published soon, unless a company representative contacts us via the channels provided.”

Mausolff Immobilien, with over 35 years of experience in the real estate sector, is a trusted name in Germany. The Dragonforce group, known for its aggressive ransomware tactics, has threatened to release confidential data, putting the company’s reputation at risk.

To proactively respond to such threats, organizations should employ dark web monitoring strategies. This includes using tools like the email breach checker available at mspdarkintel.com/domain-breach-scan to keep an eye on potential data breaches and protect their assets.

Recommendations

  • Monitor your domains and email addresses for exposure using reputable threat intelligence tools.
  • Conduct a full compromise assessment and incident response drill internally.
  • Verify backups and ensure they are offline and ransomware-resistant.
  • Educate staff on phishing, social engineering, and lateral movement techniques used by groups like Qilin.
  • Engage with cyber forensics and legal counsel before initiating contact with threat actors.

Check Your Exposure

Wondering if your organization or employees are impacted by recent breach activity?


Disclaimer

The MSPDarkIntel team does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information.
All breach data reported here is sourced from publicly available threat intelligence feeds for awareness and early-warning purposes only.
Our goal is to inform organizations of emerging threats so they can take timely defensive action.

Keep reading