Disclosure context

About Sarcoma

Sarcoma is a relatively new ransomware group that emerged in October 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach with at least 140 documented victims across multiple countries and industry sectors. The group's origin and affiliations remain unclear due to its recent emergence, with no publicly documented connections to established ransomware families or confirmation of whether they operate as an independent entity or through a Ransomware-as-a-Service model. Limited public information is available regarding Sarcoma's specific attack methodologies, initial access vectors, or technical capabilities, though their targeting patterns suggest opportunistic rather than highly selective victim selection across diverse industries including manufacturing, business services, agriculture and food production, and technology sectors. The group has shown a particular focus on victims in the United States while also maintaining operations against targets in Italy, Canada, Germany, and Australia, though no specific high-profile attacks or record ransom demands have been publicly documented by major security firms or law enforcement agencies. Given the group's recent emergence in late 2024, Sarcoma appears to remain active with no reported law enforcement disruptions or confirmed rebranding activities at this time. The group has been linked to 150 public disclosures across our corpus. First observed on a leak site on October 9, 2024; most recent post May 12, 2026. The operation is currently active.

Also tracked as: Sarcoma Ransomware Group.

Timeline of this disclosure

November 19, 2025B&J Rocket Sales listed by Sarcomaon the group's public leak site

Data size: 156 GB

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, B&J Rocket Sales is reported in Switzerland, a country with 78 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

← All victims

B&J Rocket Sales

Claimed by Sarcoma · listed 6 months ago

156 GB

Data size

Age

since listed · data leaked

Status timeline

Listed
Nov 19, 2025
Data leaked

At a glance

Group: Sarcoma
Status: Data leaked
Country: Switzerland
Sector: Manufacturing
Listed on leak site: Nov 19, 2025
Data size: 156 GB

About the victim

AI dossier — public-source company profile

B&J Rocket Sales (BJ Rocket) is a manufacturer specializing in retreading blades and carbide tools for the tire and rubber industry. The company also produces specialized cutting tools for materials such as mineral wool, marble, and leather. It is described as a recognized market leader in tire retreading tool manufacturing.

Industry: Tire Retreading Tools & Carbide Cutting Tools Manufacturing

Attack summary

Severity: high — 156 GB of data has been confirmed published (disclosed status: data_published), indicating exfiltration and public release of potentially significant business data; however, no specific regulated or sensitive personal data (medical, financial at scale) is confirmed, placing this at high rather than critical.

The Sarcoma ransomware group claims to have exfiltrated 156 GB of data from B&J Rocket Sales and has published the data as part of a multi-victim leak post. No encryption claim is explicitly stated beyond the data publication.

high

Data the group says was taken

AI dossier — extracted from the leak post

156 GB archived company data

What the group claims

B&J Rocket Sales BJ Rocket is a leading manufacturer in the tire and rubber industry, specializing in retreading blades and carbide tools. The company provides a comprehensive range of tire retreading tools and is recognized for its innovative offerings that enhance the efficiency of tire processing. Additionally, BJ Rocket caters to various sectors by producing specialized tools for materials like mineral wool, marble, and leather. Their commitment to product quality and customer satisfaction has secured their position as a trusted market leaderGeo: Switzerland - Leak size: 156 GB Archive - Contains: Files, SQL, Exchange

The leak post

captured from the group's site

Site: https://gyf.com.ar/ Industry: Business Services GEO: Argentina 
Site: www.propanelevac.ca Industry: Gas Stations, Retail GEO: Canada 
Site: www.mecmatica.it Industry: Provider of software solutions GEO: Italy 
Site: bedachungen-soellner.de Industry: Commercial & Residential Construction GEO: Germany 
Site: charterindustrial.com Industry: Industrial Machinery & Equipment GEO: USA 
Site: msbuilders.com Industry: Commercial & Residential Construction GEO: USA 
Site: thermofin.de Industry: Building Materials GEO: Germany 
Site: miamimanagement.com Industry: Business Services GEO: USA 
Site: kwg-senftenberg.de Industry: Business Services GEO: Germany 
Site: f1-generation.com Industry: Apparel & Accessories Retail GEO: Germany 
Site: inoxlaghi.com Industry: Industrial Machinery & Equipment GEO: Italy 
Site: maselli.com Industry: Manufacturing innovative optical technology GEO: Italy 
Site: metroheatingandair.com Industry: Commercial & Residential Construction GEO: USA 
Site: hv.com.co Industry: Food & Beverage GEO: Colombia 

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Design and develop IT products and services for the financial market
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Propane Levac inc. specializes in the distribution of propane across Ontari…

Source

Indexed 6 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.