Disclosure context

About Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 360 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 7, 2026. The operation is currently active.

Timeline of this disclosure

February 28, 2026UD Trucks listed by Evereston the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, UD Trucks is reported in Japan, a country with 108 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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UD Trucks

Claimed by Everest · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 28, 2026
Data leaked

At a glance

Group: Everest
Status: Data leaked
Country: Japan
Sector: Manufacturing
Listed on leak site: Feb 28, 2026

About the victim

AI dossier — public-source company profile

UD Trucks is a Japanese commercial vehicle manufacturer headquartered in Ageo, Saitama, Japan, specializing in heavy-duty trucks, medium-duty trucks, and related services. Originally founded as Nissan Diesel, the company became a subsidiary of Volvo Group and was later acquired by Isuzu Motors. UD Trucks operates globally with a strong presence in Asia, Africa, and other emerging markets.

Industry: Commercial Truck & Vehicle Manufacturing
Address: 1-1 Ageo-shi, Saitama, Japan
Employees: 5000-10000
Founded: 1935

Attack summary

Severity: high — Data has been published ('data_published' status) by a known ransomware group targeting a major international commercial vehicle manufacturer, indicating confirmed exfiltration of significant business data at scale, likely including employee PII and proprietary corporate information.

The Everest ransomware group claims to have attacked UD Trucks and has disclosed the status as 'data_published', indicating exfiltration and publication of company data. The leak post itself provides minimal detail, but the disclosed status suggests stolen data has been released on the group's leak site.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate documents
Internal business records
Employee data
Operational data

Original description

AI-summarised, not from the leak post

UD Trucks is a Japan-based company that designs, manufactures, and distributes transport solutions ranging from heavy-duty to medium-duty trucks. It is well-recognized for its reliable and high-quality products. Originally founded in 1935 as Nihon Diesel Industries, it was acquired by Volvo in 2007. UD Trucks operates globally with a primary focus on Asia and Africa.

The leak post

captured from the group's site

© 2026, All rights reserved
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Sources

Leak posthttp://ransomocmou6mnbquqz44ewosbkjk3o5qjsl3orawojexfook2j7esad.onion/news/UD_Trucks/

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.