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

May 17, 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 Pharmaceuticals & Healthcare sector. 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 4 days ago

$23.83

Ransom

demanded

Age

since listed · data leaked

Status timeline

Listed
May 17, 2026
Data leaked

At a glance

Group: beast
Status: Data leaked
Country: South Korea
Sector: Pharmaceuticals & Healthcare
Listed on leak site: May 17, 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. Its portfolio spans prescription drugs, medical devices, and health supplements.

Industry: Pharmaceuticals & Healthcare
Founded: 1953

Attack summary

Severity: high — Data has been confirmed as published by the threat actor against a pharmaceutical and healthcare company, which likely holds regulated PII, proprietary drug formulations, and health-related records. The 'data_published' status elevates this beyond a mere listing.

The Beast ransomware group claims to have published data exfiltrated from AJU Pharm Co., Ltd., indicating the disclosure status is 'data_published'. No specific ransom demand or data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Pharmaceutical business data
Medical device records
Health supplement product data

What the group claims

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

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

Screenshot of the leak post

Sources

Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/aju_pharm_co___ltd

Source

Indexed 4 days 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.