Disclosure context

About direwolf

Direwolf is a ransomware group that emerged in May 2025 with primarily financial motivations, having targeted 71 known victims across multiple sectors and geographic regions. The group's origin and potential affiliations remain undocumented in public threat intelligence reports, with no confirmed information regarding whether they operate as a Ransomware-as-a-Service model or as an independent entity. Their attack methodology and technical capabilities have not been extensively documented by major cybersecurity firms or government agencies, though their targeting patterns indicate a focus on manufacturing, technology, healthcare, and transportation/logistics sectors across Malaysia, the United States, Thailand, Singapore, and Taiwan. No major high-profile campaigns or significant ransomware demands have been publicly attributed to this group by CISA, FBI, or established security researchers such as Mandiant. Given the group's recent emergence and limited public documentation, their current operational status and long-term threat posture remain unclear, requiring continued monitoring by the cybersecurity community to establish a more comprehensive threat profile. The group has been linked to 71 public disclosures across our corpus. First observed on a leak site on May 27, 2025; most recent post January 13, 2026. The operation is currently active.

Timeline of this disclosure

December 22, 2025Sanyang Motor listed by direwolfon 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, Sanyang Motor is reported in TW, a country with 46 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

Sanyang Motor

Claimed by direwolf · listed 5 months ago

Age

since listed · data leaked

Status timeline

Listed
Dec 22, 2025
Data leaked

At a glance

Group: direwolf
Status: Data leaked
Country: TW
Sector: Manufacturing
Listed on leak site: Dec 22, 2025

About the victim

AI dossier — public-source company profile

Sanyang Motor Co., Ltd. (SYM) is a major Taiwanese manufacturer of motorcycles, scooters, and automobiles, headquartered in Taiwan. Founded in 1954, the company produces and sells two-wheeled and four-wheeled vehicles under the SYM brand across domestic and international markets. It is one of Taiwan's largest and longest-established vehicle manufacturers.

Industry: Motorcycle & Scooter Manufacturing
Employees: 1001-5000
Founded: 1954

Attack summary

Severity: high — Data has been published (disclosed status: data_published) by the threat actor against a major vehicle manufacturer, confirming exfiltration of business data. While specific data categories are not enumerated in the truncated post, published data from a large industrial manufacturer typically includes sensitive business, employee, and operational information warranting a high severity rating.

The direwolf ransomware group claims to have compromised Sanyang Motor and has published data, indicating confirmed exfiltration of company data. The specific data types and volume were not detailed in the available post excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Internal company files

What the group claims

Manufacturing

Sources

Victim sitesanyang.com.tw
Leak posthttp://direwolfcdkv5whaz2spehizdg22jsuf5aeje4asmetpbt6ri4jnd4qd.onion/api/public/articles/53

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.