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

December 17, 2025Netstar Australia PTY Ltd listed by blackshrantacon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Telecommunication sector, which has 54 disclosures indexed across all operators we track. Geographically, Netstar Australia PTY Ltd is reported in Australia, a country with 368 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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Netstar Australia PTY Ltd

Claimed by blackshrantac · listed 5 months ago

Age

since listed · data leaked

Status timeline

Listed
Dec 17, 2025
Data leaked

At a glance

Group: blackshrantac
Status: Data leaked
Country: Australia
Sector: Telecommunication
Listed on leak site: Dec 17, 2025

About the victim

AI dossier — public-source company profile

Netstar Australia Pty Ltd is a technology company based in Melbourne, Australia, specialising in fleet and asset management solutions including GPS vehicle tracking and advanced reporting. The company serves businesses across a diverse range of sectors throughout Australia, focusing on improving operational efficiency, productivity, and profitability.

Industry: Fleet & Asset Management Technology
Address: Melbourne, Australia

Attack summary

Severity: medium — Data is marked as published (disclosed status: data_published), indicating confirmed exfiltration and release; however, no details on data type, volume, or sensitivity are provided, and the leak post description appears AI-generated with no specific data inventory or proof count advertised, limiting severity assessment to medium.

The group blackshrantac claims to have compromised Netstar Australia Pty Ltd and has published data, though no specific details on encryption or the volume of exfiltrated data are stated in the post.

medium

Original description

AI-summarised, not from the leak post

Netstar Australia Pty Ltd is a technology-focused company specializing in the field of fleet and asset management. It offers customized fleet management solutions including GPS vehicle tracking and advanced reporting. With a strong commitment to innovation and customer service, Netstar aims to improve efficiency, productivity, and profitability for businesses. Based in Melbourne, the company serves a diverse range of sectors across Australia.

Sources

Leak posthttp://b2ykcy2gcug4gnccm6hnrb5xapnresmyjjqgvhafaypppwgo4feixwyd.onion/targets/37

Source

Indexed 5 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.