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

September 25, 2025MACMA Werbeartikel oHG listed by Sarcomaon the group's public leak site

Data size: 285 GB
Records: 400 employees

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, MACMA Werbeartikel oHG is reported in Germany, a country with 695 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

MACMA Werbeartikel oHG

Claimed by Sarcoma · listed 8 months ago

285 GB

Data size

400 employees records

Age

since listed · data leaked

Status timeline

Listed
Sep 25, 2025
Data leaked

At a glance

Group: Sarcoma
Status: Data leaked
Country: Germany
Sector: Not Found
Listed on leak site: Sep 25, 2025
Data size: 285 GB
Records: 400 employees

About the victim

AI dossier — public-source company profile

MACMA Werbeartikel oHG is one of the largest promotional product importers in Europe, supplying and partnering with the promotional products trade. The company employs over 400 staff and offers an extensive range of items including writing instruments, tools, travel accessories, and other promotional merchandise. MACMA focuses on serving resellers in the promotional merchandise sector with a reputation for speed and reliability.

Industry: Promotional Products & Merchandise Import
Employees: 400+

Attack summary

Severity: high — 285 GB of data has been confirmed as published by the threat actor, indicating significant exfiltration of business data including likely customer, employee, and financial records from a large European importer with 400+ employees.

The Sarcoma ransomware group claims to have exfiltrated 285 GB of data from MACMA Werbeartikel oHG, with the data published as part of a multi-victim leak post. The disclosure is marked as 'data_published', indicating the stolen data has been made available.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business documents
Employee records
Customer/reseller data
Financial records
Operational data

What the group claims

MACMA Werbeartikel oHG MACMA is one of the largest promotional product importers in Europe, serving as a supplier and partner to the promotional products trade. The company prides itself on being capable, fast, and reliable, with over 400 employees dedicated to ensuring customer satisfaction. Their extensive product range includes writing instruments, tools, travel accessories, and various promotional items designed to enhance customer engagement. MACMA focuses on providing high-quality products and efficient service to resellers in the promotional merchandise sector.Geo: Germany - Leak size: 285 GB Archive - Contains: Files

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 8 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.