Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Policlínica Dona Anita

listed as www.donaanita.com · Claimed by Ransomcortex · listed 2 years ago

24m
Age
since listed · data leaked

Status timeline

  1. ListedJul 12, 2024
  2. Data leakeddate unknown

At a glance

Group
Ransomcortex
Status
Data leaked
Country
Brazil
Sector
Hospitality and Tourism
Listed on leak site
Jul 12, 2024

About the victim

AI dossier — public-source company profile

Policlínica Dona Anita is a medical clinic based in Araçuária, Paraná, Brazil, operating since 2010. It serves as a regional healthcare reference facility providing medical services to the local community.

Industry
Healthcare - Medical Clinic
Address
Rua Rodolpho Hasselmann, 309 - Centro, Araçuária - Paraná - Brasil, 83702-130
Founded
2010

Attack summary

Severity: high — Healthcare provider with confirmed data publication by ransomware group. Patient medical records constitute regulated sensitive PII under Brazilian healthcare law, posing significant privacy and compliance risk regardless of volume.

Ransomcortex claims to have accessed Policlínica Dona Anita's systems. The group has published data but the specific nature of exfiltration versus encryption-only, and the data categories involved, are not detailed in the available post excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient records
  • Medical data

What the group claims

Find out more about the Medical Clinic. A reference in the region, Policlínica Dona Anita has been serving since 2010, always seeking…

Sources

Source

Indexed 2 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Ransomcortex

Ransomcortex is an emerging ransomware group that first appeared in July 2024, operating with apparent financial motivation based on their targeting patterns and ransom demands. Given the group's recent emergence and limited public documentation, details about their country of origin and organizational structure remain unclear, though their primary focus on Brazilian targets suggests potential regional connections or familiarity with local business environments. The group has demonstrated a preference for targeting critical infrastructure and service sectors, specifically healthcare, manufacturing, and hospitality organizations, though specific details about their initial access methods, encryption techniques, and whether they employ data exfiltration tactics have not been extensively documented by major security firms. With only four confirmed victims since their emergence six months ago, Ransomcortex appears to operate on a smaller scale compared to established ransomware families, and no major high-profile attacks or significant law enforcement actions have been publicly reported against this group. As of early 2024, the group appears to remain active but maintains a relatively low profile in the ransomware landscape. The group has been linked to 4 public disclosures across our corpus. First observed on a leak site on July 12, 2024. The operation is currently inactive.

Timeline of this disclosure

  • July 12, 2024www.donaanita.com listed by Ransomcortexon the group's public leak site

Other recent disclosures by Ransomcortex

Ransomcortex has been linked to 4 public victims on Darkfield. A sample of the most recent:

See the full Ransomcortex dossier →

Sector and geography

This disclosure adds to ransomware activity in the Hospitality and Tourism sector, which has 452 disclosures indexed across all operators we track. Geographically, www.donaanita.com is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Ransomcortex means www.donaanita.com appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CERT.br (Brazil), as required for your jurisdiction.
  • Monitor for the data appearing on Ransomcortex's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.