Disclosure context

About Medusa

Medusa, also known as MedusaLocker, is a financially motivated ransomware group that emerged in November 2022 and has since compromised 568 known victims across multiple countries. The group's origin and specific affiliations remain unclear from publicly available intelligence, though their operational patterns suggest they function as an independent ransomware operation rather than a documented Ransomware-as-a-Service model. Medusa primarily targets organizations in the United States, United Kingdom, Canada, Italy, and Australia, with a focus on business services, healthcare, manufacturing, and technology sectors, employing typical ransomware tactics including data encryption and likely exfiltration for double extortion purposes, though specific technical methodologies and initial access vectors have not been extensively documented in public threat intelligence reports. While the group has maintained a relatively high victim count since its emergence, detailed information about specific notable campaigns, high-profile victims, or major ransom demands has not been widely reported by major cybersecurity firms or law enforcement agencies. As of current intelligence assessments, Medusa appears to remain active in the threat landscape, continuing to target organizations across their established geographic and sectoral preferences. The group has been linked to 568 public disclosures across our corpus. First observed on a leak site on November 15, 2022; most recent post February 14, 2026. The operation is currently active.

Also tracked as: MedusaLocker.

Timeline of this disclosure

December 19, 2025Sampoerna Agro listed by Medusaon the group's public leak site

Records: 10K Employees

Sector and geography

This disclosure adds to ransomware activity in the Agriculture and Food Production sector, which has 536 disclosures indexed across all operators we track. Geographically, Sampoerna Agro is reported in Indonesia, a country with 38 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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Sampoerna Agro

Claimed by Medusa · listed 5 months ago

10K Employees

Records

Age

since listed · data leaked

Status timeline

Listed
Dec 19, 2025
Data leaked

At a glance

Group: Medusa
Status: Data leaked
Country: Indonesia
Sector: Agriculture and Food Production
Listed on leak site: Dec 19, 2025
Records: 10K Employees

About the victim

AI dossier — public-source company profile

Sampoerna Agro is an Indonesian agribusiness company primarily engaged in the cultivation and processing of oil palm, as well as other agricultural commodities including sago and rubber. The company operates plantations and processing mills across Sumatra and Kalimantan, Indonesia. It is publicly listed on the Indonesia Stock Exchange (IDX: SGRO) and is part of the broader Sampoerna Group.

Industry: Palm Oil & Agricultural Commodities
Employees: 1001-5000
Founded: 1988

Attack summary

Severity: high — Data is listed as published by Medusa, a prolific ransomware-as-a-service group known for exfiltrating significant business data prior to publication. Sampoerna Agro is a publicly listed company, meaning leaked data could include financial records, operational data, employee PII, and commercially sensitive information. No specific data inventory is confirmable from the truncated post, but 'data_published' status elevates severity to high.

The Medusa ransomware group claims an attack on Sampoerna Agro and has listed the disclosure status as data_published, indicating exfiltration and/or publication of company data. The specific contents of the published data cannot be confirmed from the truncated leak post due to a CAPTCHA verification wall.

high

What the group claims

Founded in 1993 and headquartered in South Sumatra, Indonesia, PT Sampoerna Agro Tbk is a palm oil manufacturer. They engage in the production of palm products, which are crude palm oil (CPO) and palm kernel (PK); palm kernel products, which include palm kernel oil and palm kernel expelle; germinated palm seeds, and non- palm oil products. The company headquarters is located Sampoerna Agro headquarters: Sampoerna Strategic Square, North Tower 28th Floor, Jl. Jenderal Sudirman Kav. 45, Jakarta 12930, Indonesia. 5K - 10K Employees

The leak post

captured from the group's site

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Sources

Leak posthttp://xfv4jzckytb4g3ckwemcny3ihv4i5p4lqzdpi624cxisu35my5fwi5qd.onion/detail?id=2f35c0cf1d2d0eae4048611a97fc8ad2

Source

Indexed 5 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.