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Brasilmad

Claimed by Sarcoma · listed 2 years ago

2 GB
Data size
19m
Age
since listed · data leaked

Status timeline

  1. ListedDec 12, 2024
  2. Data leakeddate unknown

At a glance

Group
Sarcoma
Status
Data leaked
Country
Brazil
Listed on leak site
Dec 12, 2024
Data size
2 GB

About the victim

AI dossier — public-source company profile

Brasilmad is a Brazilian wood export company specializing in pine wood processing and supply for furniture, packaging, and construction applications. Operating since 1997 and led by Nivaldo Dzyekanski, the company works with major Brazilian sawmills including Imaribo S/A and has received multiple export merit awards.

Industry
Wood Export & Processing
Founded
1997

Attack summary

Severity: medium — Confirmed data exfiltration of 2 GB with published archive; no indication of PII at scale or regulatory data, but business information from a mid-market exporter poses moderate commercial risk.

Sarcoma claims to have exfiltrated approximately 2 GB of data from Brasilmad. The group has published the data archive but the specific nature of compromised information is not detailed in the available leak post.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Business files
  • Corporate records
  • Client data

What the group claims

Brasilmad Brasilmad is a brazilian corporation acting in the wood export market since 1997. We are specialized in pine wood, cut and processed on the final and exact measurements set by our clients. Our wood is used in all continents for furniture manufacture, special packaging and construction. We have partnerships with sawmills with their own forests; the main one is Imaribo S/A Ind e Com, one of the largest brazilian sawmills, with 13000 ha (more than 32 acres) of pine forests. Presided by Nivaldo Dzyekanski, an experienced entrepreneur on the wood export market, Brasilmad has received numerous awards. Since 2003 we have been receivers of the annual "Mérito Exportação" award from the trade magazine "Revista da Madeira". We were also present in the "100 Biggest Brazilian Exporters" list published by "Indústria e Comércio" newspaper in 2008.Geo: Brazil - Leak size: 2 GB Archive - Contains: Files

Sources

Source

Indexed 2 years 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.

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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

  • December 12, 2024Brasilmad listed by Sarcomaon the group's public leak site
Data size
2 GB

Other recent disclosures by Sarcoma

Sarcoma has been linked to 150 public victims on Darkfield. A sample of the most recent:

See the full Sarcoma dossier →

Sector and geography

Geographically, Brasilmad is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means Brasilmad appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CERT.br (Brazil), as required for your jurisdiction.
  • Monitor for the data appearing on Sarcoma's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.