Disclosure context

About egregor

Egregor is a ransomware group that emerged in October 2020 and operated with primarily financial motivations, quickly establishing itself as a significant threat in the ransomware landscape. The group is believed to have originated from Russian-speaking cybercriminals and operated as a Ransomware-as-a-Service (RaaS) model, with some researchers suggesting potential connections to the defunct Maze ransomware operation. Egregor employed double extortion tactics, typically gaining initial access through compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, and exploitation of network vulnerabilities, followed by lateral movement using tools like Cobalt Strike before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group targeted organizations across multiple sectors including commercial facilities, financial services, transportation systems, and healthcare, with notable victims spanning the United States, Chile, Canada, and France, though specific high-profile attacks received limited public documentation from major security agencies. Egregor's operations were significantly disrupted in early 2021 when international law enforcement actions led to arrests of suspected affiliates, effectively ending the group's activities by mid-2021. The group has been linked to 6 public disclosures across our corpus. First observed on a leak site on October 10, 2020; most recent post February 8, 2021. The operation is currently inactive.

Timeline of this disclosure

February 8, 2021Center Hospitalier de Dax-Côte d’Argent listed by egregoron the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare and Public Health sector, which has 52 disclosures indexed across all operators we track. Geographically, Center Hospitalier de Dax-Côte d’Argent is reported in France, a country with 472 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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Center Hospitalier de Dax-Côte d’Argent

Claimed by egregor · listed 5 years ago

64m

Age

since listed · data leaked

Status timeline

Listed
Feb 8, 2021
Data leaked

At a glance

Group: egregor
Status: Data leaked
Country: France
Sector: Healthcare and Public Health
Listed on leak site: Feb 8, 2021

About the victim

AI dossier — public-source company profile

Centre Hospitalier de Dax-Côte d'Argent is a public hospital located in Dax, in the Landes department of southwestern France. It serves as the main regional hospital for the Côte d'Argent area, providing acute care, emergency services, and a range of medical and surgical specialties. As a French public health institution, it handles sensitive patient medical records and personal data for a large catchment population.

Industry: Public Hospital & Healthcare Services
Address: 351 Avenue Georges Clemenceau, 40100 Dax, France
Employees: 500-1000

Attack summary

Severity: critical — The victim is a public hospital whose systems inherently contain large volumes of regulated, sensitive medical and personal data (PHI/PII). The 'data_published' status indicates confirmed exfiltration and public release of that data, meeting the threshold for critical severity. Attacks on hospital infrastructure also pose direct risk to patient safety.

The Egregor ransomware group claimed an attack on Centre Hospitalier de Dax-Côte d'Argent and listed the victim with a 'data_published' status, indicating exfiltration and publication of stolen data. No specific ransom amount or data volume was stated in the available post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient medical records
Personal health information (PHI)
Staff personnel records
Administrative and financial documents
Internal hospital operational data

Sources

Victim sitech-dax.fr

Source

Indexed 5 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.