Ruhrpumpen Data Breach

Ruhrpumpen, a manufacturing company based in Germany, has been listed as a victim on the Dark Project ransomware group’s dark web portal, published on August 5, 2026. The listing was identified through SOCRadar’s Dark Web Monitoring service. The company operates in industrial pump manufacturing, supplying equipment into energy, water, and process industries. It is the only German entry in Dark Project’s recent listing population. In the 60 days prior to this listing, Dark Project has claimed 17 other victims across its leak portal. The group has shown a strong targeting pattern in the manufacturing, healthcare, and transportation sectors. Geographically, its victims are concentrated in the United States, the United Kingdom, and the Philippines. Other recent Dark Project listings that overlap with Ruhrpumpen’s profile — manufacturing organisations — include Rocky Mount Recyclers, Leviton, Sutherland Packaging, and Mayco International. Ruhrpumpen matches the group’s dominant sector while extending its geography into a market it has not otherwise touched in this window.

Initial-access correlation against SOCRadar’s stealer-log telemetry surfaced a severe exposure for the ruhrpumpen.com domain. The returned sample contained seven records classified as employee credentials on organisation-controlled systems, including the corporate identity provider and mail infrastructure, alongside ten records showing corporate users authenticating to third-party services and one customer-side entry. Log activity runs into June 2026. The heavier weighting toward third-party endpoints suggests infected employee workstations as the underlying condition, with the identity-provider records representing the sharp end of that exposure. The overall profile is mixed. For ransomware groups such as Dark Project, infostealer-harvested credentials are a well-documented initial access vector: operators or initial access brokers source fresh logs from underground marketplaces, validate the corporate credentials, and use them to log into Microsoft 365, VPN, or remote-access portals before deploying ransomware. While the stealer-log evidence here does not confirm that these specific credentials were used by Dark Project, the pattern is consistent with the kill chain typically observed for this class of incident. CTI teams tracking this listing should treat the exposed corporate identities as a standing risk and prioritise credential rotation and session invalidation over point-in-time assessment.

This report is intended for threat intelligence and security awareness purposes. SOCRadar does not host, redistribute or buy stolen data. All breach information reported here is collected from publicly accessible threat actor and ransomware portals. This content is intended to equip CTI teams with context around recent attacks. While we strive for accuracy, listings on ransomware leak and extortion sites cannot always be independently verified and may not reflect confirmed breaches. If you believe any data in this report is incorrect, please contact us.