Disclosure context

About blackshrantac

Based on available intelligence, blackshrantac is a recently emerged ransomware group first observed in September 2025, operating with apparent financial motivations and demonstrating a geographically diverse targeting approach across multiple continents. The group has victimized 43 known entities primarily across India, the United States, Turkey, Peru, and Australia, suggesting either a broad opportunistic targeting strategy or access to varied initial compromise vectors that span different regions. Their sector targeting shows a preference for manufacturing, technology, financial services, and public sector organizations, though a significant portion of their attacks have occurred against entities in unspecified sectors, indicating either incomplete intelligence gathering or deliberate obfuscation of their targeting patterns. Due to the group's recent emergence and relatively limited public exposure, detailed information about their specific attack methodologies, tooling, encryption techniques, data exfiltration practices, or operational structure remains largely undocumented by major threat intelligence organizations and law enforcement agencies. The group's current operational status appears to be active given their recent first observation date, though the limited intelligence available suggests they may be either a smaller operation or have successfully maintained a lower profile compared to more established ransomware groups. The group has been linked to 43 public disclosures across our corpus. First observed on a leak site on September 17, 2025; most recent post January 20, 2026. The operation is currently active.

Timeline of this disclosure

October 28, 2025Eligibility Tracking Calculators listed by blackshrantacon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, Eligibility Tracking Calculators 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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Eligibility Tracking Calculators

Claimed by blackshrantac · listed 7 months ago

Age

since listed · data leaked

Status timeline

Listed
Oct 28, 2025
Data leaked

At a glance

Group: blackshrantac
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Oct 28, 2025

About the victim

AI dossier — public-source company profile

Eligibility Tracking Calculators (ETC) is a US-based technology company that provides software solutions for employee benefits eligibility tracking and calculation. Its clients include employers, insurance brokers, and CPA firms seeking to manage benefits compliance with legal requirements. The company operates in the HR-tech and benefits administration space.

Industry: Employee Benefits Management Software

Attack summary

Severity: high — Data has been published (not merely announced) by the threat actor. Given ETC's business handling employee benefits eligibility data for employers, brokers, and CPA firms, the likely exposure includes PII and sensitive HR/financial records at potentially significant scale, warranting a high severity classification.

The group blackshrantac claims to have published data belonging to ETC, with the disclosure status marked as data_published. The specific nature of the exfiltrated data is not detailed in the post, though the company's business context suggests potential exposure of employer and employee benefits-related records.

high

Data the group says was taken

AI dossier — extracted from the leak post

Employee benefits eligibility records
Employer client data
Insurance broker information
CPA firm records
Compliance-related documentation

Original description

AI-summarised, not from the leak post

"Eligibility Tracking Calculators" (ETC) is a company that offers technological solutions for employee benefits management. It provides software applications that help employers, insurance brokers, and CPA firms to track and calculate their employee benefits eligibility efficiently. This assists organizations in adhering to various legal compliance requirements related to employee benefits.

Sources

Leak posthttp://jvkpexgkuaw5toiph7fbgucycvnafaqmfvakymfh5pdxepvahw3xryqd.onion/targets/19

Source

Indexed 7 months 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.