Disclosure context

About Karakurt

Karakurt is a ransomware group that emerged in December 2022, operating primarily as a data extortion threat actor with financial motivations rather than traditional file encryption. The group's origin and affiliations remain largely undocumented by major cybersecurity agencies, though their operational patterns suggest they function as an independent entity rather than a confirmed ransomware-as-a-service operation. Karakurt employs data theft and extortion tactics, focusing on exfiltrating sensitive information from victim networks before demanding payment under threat of public disclosure, representing a pure extortion model that bypasses traditional encryption-based ransomware approaches. The group has targeted 74 known victims across multiple sectors, with particular focus on healthcare, education, manufacturing, energy, and professional services organizations, primarily affecting entities in the United States, United Kingdom, Germany, Singapore, and India. Based on available reporting from established cybersecurity agencies and researchers, Karakurt appears to remain active as of recent assessments, though comprehensive intelligence on their specific attack vectors, tools, and major campaigns remains limited in publicly documented sources from CISA, FBI, and major security research organizations. The group has been linked to 74 public disclosures across our corpus. First observed on a leak site on December 11, 2022; most recent post September 22, 2023. The operation is currently inactive.

Timeline of this disclosure

September 22, 2023Yakima Valley Radiology listed by Karakurton the group's public leak site

Records: 212579 rows

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Yakima Valley Radiology is reported in United States, a country with 7,392 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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Yakima Valley Radiology

Claimed by Karakurt · listed 3 years ago

212579 rows

Records

32m

Age

since listed · data leaked

Status timeline

Listed
Sep 22, 2023
Data leaked

At a glance

Group: Karakurt
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Sep 22, 2023
Records: 212579 rows

About the victim

AI dossier — public-source company profile

Yakima Valley Radiology PC is a radiology practice operating in the healthcare sector, likely serving patients in the Yakima Valley region of Washington State. The organization provides diagnostic imaging and radiology services. Based on the leak post, it has maintained patient records spanning at least 15 years.

Industry: Diagnostic Radiology & Medical Imaging

Attack summary

Severity: critical — Confirmed exfiltration and publication of highly regulated PII at scale: 212,579 patient records spanning 15 years and 766,000 SSN records covering patients, staff, and doctors — constituting a major HIPAA-covered breach of medical and financial identity data.

Karakurt claims to have exfiltrated data from Yakima Valley Radiology PC, including financial reports, client lists, a 15-year patient list containing 212,579 rows, and a database of social security numbers with 766,000 rows affecting staff and doctors. The group has disclosed the data publicly.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Financial reports
Client lists with contact information
Patient records (15 years, 212,579 rows)
Social Security Number database (766,000 rows, staff and physicians)

What the group claims

Yakima Valley Radiology PC is a company that operates in the Hospital & Health Care industry. 10 of the organization contain financial reports, client lists with contacts, list of patients for 15 years (212579 rows), a database of social security numbers (including staff, doctors) with 766000 rows.

Source

Indexed 3 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.