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 75 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post May 21, 2026. The operation is currently active.

Timeline of this disclosure

February 24, 2026AJU Pharm Co., Ltd listed by beaston the group's public leak site

Ransom demanded: $23.83

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, AJU Pharm Co., Ltd is reported in South Korea, a country with 32 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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AJU Pharm Co., Ltd

Claimed by beast · listed 3 months ago

$23.83

Ransom

demanded

Age

since listed · data leaked

Status timeline

Listed
Feb 24, 2026
Data leaked

At a glance

Group: beast
Status: Data leaked
Country: South Korea
Sector: Healthcare
Listed on leak site: Feb 24, 2026
Ransom demanded: $23.83

About the victim

AI dossier — public-source company profile

AJU Pharm Co., Ltd. is a South Korean total healthcare company founded in 1953. Over more than 70 years it has evolved from a raw materials manufacturer into a global pharmaceutical group specialising in prescription drugs, medical devices, and health supplements.

Industry: Pharmaceuticals & Medical Devices
Founded: 1953

Attack summary

Severity: high — The disclosure status is 'data_published', confirming exfiltration and public release of data from a pharmaceutical and medical device company operating in the regulated healthcare sector; potential exposure of sensitive business, regulatory, and possibly patient-adjacent data elevates severity to high.

The Beast ransomware group claims an attack against AJU Pharm Co., Ltd. and has published data; the post implies exfiltration of company data, though specific data categories and volume are not detailed in the available excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post

Pharmaceutical business data
Prescription drug records
Medical device documentation
Health supplement product data

What the group claims

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

The leak post

captured from the group's site

[ 2fORM Architecture specializes in innovative sustainable architecture, offering design services for residential, commercial, and interior projects. Their portfolio includes a diverse range of developments, such as multi-family housing, health care facilities, and various remodels. The company aims to serve clients in the Pacific Northwest, including individual homeowners, businesses, and institutions. With a commitment to sustainability and creativity, 2fORM Architecture enhances the built environment through thoughtful design. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/2form_architecture)[ ACMARK s r o is a company that operates in the Repair Services industry. It employs 10to19 people and has 1Mto5M of revenue. The company is headquartered in Brno, South Moravian, Czech Republic. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/acmark)[ 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…

Screenshot of the leak post

Sources

Victim site-
Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/aju_pharm_co___ltd

Source

Indexed 3 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.