Disclosure context

About beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 74 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post May 20, 2026. The operation is currently active.

Timeline of this disclosure

April 8, 2026irmler.org listed by beaston the group's public leak site

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, irmler.org is reported in DE, a country with 333 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

irmler.rechtsanwälte

listed as irmler.org · Claimed by beast · listed 1 month ago

42d

Age

since listed · data leaked

Status timeline

Listed
Apr 8, 2026
Data leaked

At a glance

Group: beast
Status: Data leaked
Country: DE
Sector: Not Found
Listed on leak site: Apr 8, 2026

About the victim

AI dossier — public-source company profile

irmler.rechtsanwälte is a German law firm specialising exclusively in architectural law, public procurement law, and private and public construction law. The firm operates from offices in Schwerin (Mecklenburg-Vorpommern) and Lübeck (Schleswig-Holstein), and is active nationwide in supporting procurement procedures for architect and planning services and architectural competitions.

Industry: Legal Services – Architectural & Construction Law
Address: Schwerin, Mecklenburg-Vorpommern, Germany; Lübeck, Schleswig-Holstein, Germany

Attack summary

Severity: high — Data has been published (data_published status), confirming exfiltration. As a law firm, the stolen data is likely to include privileged client communications, sensitive procurement and construction-contract documents, and personal data of clients and staff, constituting significant sensitive business and potentially regulated personal data.

The Beast ransomware group claims to have attacked irmler.rechtsanwälte and has published data (disclosed status: data_published), indicating exfiltration of firm data; the leak post does not specify an encryption event or quantify the volume of data stolen.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Procurement procedure documents
Internal correspondence
Contact and personal data of clients/staff

What the group claims

irmler.rechtsanwalte specializes exclusively in architectural law, public procurement law and private and public construction law. We are represented in Mecklenburg-Vorpommern and in Schleswig-Holstein at the locations in Schwerin and Lubeck. In the support of procurement procedures, in particular for the award of architect/planning services and architectural competitions, irmler.rechtsanwalte is active nationwide.

The leak post

captured from the group's site

AJU Pharm Co., Ltd. is a prominent South Korean total healthcare company founded in 1953. For over 70 years, it has evolved from a manufacturer of raw materials into a global pharmaceutical group specializing in prescription drugs, medical devices, and health supplements
P U B L I S H E D

Sources

Victim sitewww.irmler.org
Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/irmler_org

Source

Indexed 1 month 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.