Disclosure context

About Stormous

Stormous is a relatively new ransomware group that emerged in March 2022, operating primarily with financial motivations and has claimed responsibility for attacks against at least 165 victims across multiple countries and sectors. The group's country of origin remains unclear from publicly documented sources, though their operational patterns suggest they may operate as an independent entity rather than a established ransomware-as-a-service model. Limited public documentation from major security firms indicates the group employs common ransomware tactics, though specific details about their initial access vectors, encryption methods, and data exfiltration practices have not been extensively detailed in reports from CISA, FBI, or major threat intelligence providers. Their targeting appears geographically diverse with a focus on Spain, the United States, France, UAE, and Brazil, while showing particular interest in technology, hospitality and tourism, government, and business services sectors, though many of their victims span unspecified industries. As of current reporting, Stormous appears to remain an active threat, though the limited public documentation suggests they operate as a lower-tier ransomware group compared to more prominent families that receive extensive coverage from major security research organizations. The group has been linked to 220 public disclosures across our corpus. First observed on a leak site on March 22, 2022; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

November 6, 2025www.wilmar.co.id listed by Stormouson the group's public leak site

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, www.wilmar.co.id 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

← All victims

Wilmar International (Indonesia)

listed as www.wilmar.co.id · Claimed by Stormous · listed 7 months ago

Age

since listed · data leaked

Status timeline

Listed
Nov 6, 2025
Data leaked

At a glance

Group: Stormous
Status: Data leaked
Country: Indonesia
Sector: Agriculture and Food Production
Listed on leak site: Nov 6, 2025

About the victim

AI dossier — public-source company profile

Wilmar International is one of Asia's leading agribusiness groups, with its Indonesian operations (www.wilmar.co.id) covering the full value chain of palm oil, sugar, flour, and consumer food products. The group operates extensive plantations, processing facilities, and distribution networks across Indonesia and the wider Asia-Pacific region. It is a subsidiary of Singapore-listed Wilmar International Limited, one of the world's largest agricultural commodity processors.

Industry: Agriculture & Agribusiness (Palm Oil, Oilseeds, Sugar, Grain Processing)
Employees: 10001+
Founded: 1991

Attack summary

Severity: high — Confirmed internal network access (VPN) to a major agribusiness conglomerate with global operations, with data published; the scale of the organisation and potential exposure of business-critical, financial, and operational data elevates this beyond medium, though the absence of enumerated regulated/PII data prevents critical classification.

The Stormous ransomware group claims to have obtained VPN access to the company's internal network, implying unauthorised access to internal systems; no specific data volume or file categories are enumerated in the post, but the 'data_published' status indicates data has been released.

high

Data the group says was taken

AI dossier — extracted from the leak post

VPN/internal network access credentials
Internal network data (unspecified)

What the group claims

VPN access to the company’s internal network is provided

Sources

Victim sitewww.wilmar.co.id

Source

Indexed 7 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.