Disclosure context

About direwolf

Direwolf is a ransomware group that emerged in May 2025 with primarily financial motivations, having targeted 71 known victims across multiple sectors and geographic regions. The group's origin and potential affiliations remain undocumented in public threat intelligence reports, with no confirmed information regarding whether they operate as a Ransomware-as-a-Service model or as an independent entity. Their attack methodology and technical capabilities have not been extensively documented by major cybersecurity firms or government agencies, though their targeting patterns indicate a focus on manufacturing, technology, healthcare, and transportation/logistics sectors across Malaysia, the United States, Thailand, Singapore, and Taiwan. No major high-profile campaigns or significant ransomware demands have been publicly attributed to this group by CISA, FBI, or established security researchers such as Mandiant. Given the group's recent emergence and limited public documentation, their current operational status and long-term threat posture remain unclear, requiring continued monitoring by the cybersecurity community to establish a more comprehensive threat profile. The group has been linked to 71 public disclosures across our corpus. First observed on a leak site on May 27, 2025; most recent post January 13, 2026. The operation is currently active.

Timeline of this disclosure

November 26, 2025Transpedrosa listed by direwolfon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Transportation/Logistics sector, which has 847 disclosures indexed across all operators we track. Geographically, Transpedrosa is reported in Brazil, a country with 319 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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Transpedrosa

Claimed by direwolf · listed 6 months ago

Age

since listed · data leaked

Status timeline

Listed
Nov 26, 2025
Data leaked

At a glance

Group: direwolf
Status: Data leaked
Country: Brazil
Sector: Transportation/Logistics
Listed on leak site: Nov 26, 2025

About the victim

AI dossier — public-source company profile

Transpedrosa is a Brazilian road transport and logistics company established in 1969, specializing in the transportation of liquid and gas products including chemical, petrochemical, and aviation materials. The company operates a modern fleet with advanced monitoring technology across multiple units in Brazilian states including Sergipe, São Paulo, Pernambuco, Minas Gerais, and Bahia. It positions itself as a strategic logistics partner offering safety-certified, punctual, and flexible cargo transport services.

Industry: Road Transport & Logistics for Liquid and Gas Products
Founded: 1969

Attack summary

Severity: high — Data has been confirmed published by the threat actor against a logistics company handling hazardous/chemical cargo transport; exfiltration of operational, client, and business data from a critical-sector Brazilian company constitutes significant business data exposure, though specific regulated data categories (PII at scale, financial, medical) are not explicitly confirmed.

The direwolf ransomware group claims an attack on Transpedrosa and has published data, though no specific data size or ransom amount was stated. The disclosure status of 'data_published' indicates exfiltration and publication of company data has occurred.

high

Data the group says was taken

AI dossier — extracted from the leak post

Company operational data
Logistics and transport records
Client information
Internal business documents

Original description

AI-summarised, not from the leak post

Transpedrosa is a Brazilian company that specializes in the transportation of liquid and gas products. Established in 1969, they handle an array of materials like chemical, petrochemical, and aviation products. They continue to expand their services beyond their initial local focus, becoming a crucial player in the road transport logistic sector within Brazil.

Sources

Victim sitetranspedrosa.com.br
Leak posthttp://direwolfcdkv5whaz2spehizdg22jsuf5aeje4asmetpbt6ri4jnd4qd.onion/api/public/articles/45

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.