Was Aroeira Salles Advogados hit by ransomware?

Aroeira Salles Advogados was listed by the direwolf ransomware operation (Brazil), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the direwolf ransomware group?

direwolf is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Aroeira Salles Advogados breach?

direwolf published data attributed to Aroeira Salles Advogados. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Aroeira Salles Advogados

Claimed by Direwolf · listed 11 months ago

10m

Age

since listed · data leaked

Status timeline

ListedAug 25, 2025
Data leakeddate unknown

At a glance

Group: Direwolf
Status: Data leaked
Country: Brazil
Listed on leak site: Aug 25, 2025

About the victim

AI dossier — public-source company profile

Aroeira Salles Advogados is a Brazilian law firm with over 20 years of experience providing comprehensive legal services to large companies and public/private entities. Their practice areas include labor law, public law, civil law, business law, environmental law, anticorruption and compliance, public procurement, and litigation finance. The firm also participates in the international 'Doing Business in Brazil' guide as a legal expert.

Industry: Legal Services
Founded: 2001

Attack summary

Severity: high — The data has been confirmed as published by the threat actor. As a law firm handling sensitive client matters including anticorruption, criminal inquiries, corporate transactions, and compliance programs, the exfiltrated data likely contains privileged attorney-client communications and sensitive business/legal records for large corporate clients, representing significant confidentiality and legal privilege exposure.

The direwolf ransomware group claims to have attacked Aroeira Salles Advogados and has published data (disclosed status: data_published), though the specific nature of the attack (encryption, exfiltration, or both) and the volume or type of data involved are not detailed in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Corporate advisory documents
Compliance and due diligence records
Litigation and dispute records
Contracts and agreements
Internal firm data

Original description

AI-summarised, not from the leak post

Aroeira Salles Advogados is a Brazilian law firm providing a comprehensive array of legal services. Their expertise covers a range of disciplines such as labor law, public law, civil law, business law, and environmental law. Established in 2001, the firm serves both individuals and corporations and is known for its commitment to ethical and effective legal practice. Aroeira Salles prides itself on its use of technology for driving efficiency in legal services.

Sources

Victim sitearoeirasalles.com.br
Leak posthttp://direwolfcdkv5whaz2spehizdg22jsuf5aeje4asmetpbt6ri4jnd4qd.onion/articles/aroeirasalles.html

Source

Indexed 11 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.

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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 75 public disclosures across our corpus. First observed on a leak site on May 27, 2025; most recent post June 12, 2026. The operation is currently active.

Also tracked as: DIRE WOLF.

Timeline of this disclosure

August 25, 2025Aroeira Salles Advogados listed by direwolfon the group's public leak site

Other recent disclosures by direwolf

direwolf has been linked to 75 public victims on Darkfield. A sample of the most recent:

See the full direwolf dossier →

Sector and geography

Geographically, Aroeira Salles Advogados is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by direwolf means Aroeira Salles Advogados 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 direwolf'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.