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

May 7, 2026gyf.com.ar listed by Sarcomaon the group's public leak site

Data size: 286 GB

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, gyf.com.ar is reported in Argentina, a country with 16 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

gyf.com.ar

Claimed by Sarcoma · listed 13 days ago

286 GB

Data size

13d

Age

since listed · listed for ransom

Status timeline

Listed
May 7, 2026

Current state: Listed for ransom

At a glance

Group: Sarcoma
Status: Listed for ransom
Country: Argentina
Sector: Business Services
Listed on leak site: May 7, 2026
Data size: 286 GB

About the victim

AI dossier — public-source company profile

GYF Inteligencia Digital is an Argentine IT company specialising in the design and development of software products and services for the financial market, including banking and fintech sectors. The company is based in Buenos Aires and reports over 30 years of operation, more than 50 satisfied clients, and 5 million-plus programming hours. Its product portfolio includes solutions such as Adintar, MODO integration, Maxwell BI, and cash dispenser systems.

Industry: Financial Technology & Digital Banking Software
Address: 25 de Mayo 457 piso 10, CABA C1002ABI, Buenos Aires, Argentina
Employees: 51-200

Attack summary

Severity: high — The victim is a fintech/banking software provider handling financial-market systems for 50+ clients; exfiltration of 286 GB from such an entity likely encompasses sensitive financial data, client credentials, or proprietary banking software, representing significant business and potentially regulated data exposure.

The Sarcoma ransomware group has listed gyf.com.ar as a victim, claiming to possess a 286 GB archive of data exfiltrated from the company. No ransom amount has been stated and the disclosure status is 'listed', indicating the data has not yet been fully published.

high

Data the group says was taken

AI dossier — extracted from the leak post

286 GB archived data

What the group claims

Design and develop IT products and services for the financial market

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…

Screenshot of the leak post

Sources

Victim sitehttps://gyf.com.ar/
Leak posthttp://sarcomawmawlhov7o5mdhz4eszxxlkyaoiyiy2b5iwxnds2dmb4jakad.onion

Source

Indexed 13 days 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.