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ZACROS株式会社

listed as 藤森工業株式会社 · Claimed by Argonauts · listed 2 years ago

19m
Age
since listed · data leaked

Status timeline

  1. ListedNov 27, 2024
  2. Data leakeddate unknown

At a glance

Group
Argonauts
Status
Data leaked
Country
Japan
Sector
Manufacturing
Listed on leak site
Nov 27, 2024

About the victim

AI dossier — public-source company profile

ZACROS is a Japanese manufacturer specializing in precision coating technologies for electronic materials, pharmaceutical and medical packaging, cosmetic containers, and functional food packaging. The company operates across four business domains (Wellness, Environmental Solutions, Electronic Materials, Industrial Infrastructure) with 111 years of history, global presence in 15 locations, and approximately ¥150.7 billion in group revenue.

Industry
Specialty Materials & Advanced Packaging — Precision Coatings, Pharmaceuticals, Cosmetics, Food
Founded
1915

Attack summary

Severity: high — Confirmed exfiltration of 140 GB of data from a large multinational manufacturing company with operations across pharmaceuticals, medical devices, and cosmetics — sectors handling regulated and sensitive information. Public disclosure of data with refusal to pay indicates active publication threat.

The Argonauts group claims to have exfiltrated approximately 140 GB of company data due to the victim's refusal to pay ransom. The group indicates data publication is underway.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • corporate records
  • business documents
  • operational files

The group's post references roughly 1 proof file advertised (news:00.pdf) proof files.

What the group claims

ALL DATA SIZE: 140GB [news:00.pdf] Due to the company’s refusal to pay the ransom,We continue to sell

Sources

Source

Indexed 2 years 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.

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Disclosure context

About argonauts

The Argonauts ransomware group is a recently emerged threat actor that began operations in November 2024, appearing to be financially motivated based on their ransomware deployment patterns. Given their recent emergence and limited public reporting, specific details about their country of origin, affiliations, and operational model remain largely undocumented by major threat intelligence firms and law enforcement agencies. Based on observed targeting patterns, the group appears to focus on opportunistic attacks across multiple sectors, with their 13 known victims spanning technology, manufacturing, transportation and logistics, business services, and healthcare organizations primarily located in Italy, Taiwan, the United States, Japan, and Canada. The group's attack methodology, encryption techniques, and whether they employ double or triple extortion tactics have not been extensively documented in publicly available threat intelligence reports from established security research organizations. No major high-profile campaigns or significant law enforcement actions against Argonauts have been reported in open sources as of early 2024. The group appears to remain active as of the most recent threat intelligence reporting, though their limited operational history and low victim count suggest they are either a newly formed operation or a relatively small-scale threat actor. The group has been linked to 13 public disclosures across our corpus. First observed on a leak site on November 27, 2024; most recent post December 16, 2024. The operation is currently inactive.

Timeline of this disclosure

  • November 27, 2024藤森工業株式会社 listed by argonautson the group's public leak site

Other recent disclosures by argonauts

argonauts has been linked to 13 public victims on Darkfield. A sample of the most recent:

See the full argonauts dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, 藤森工業株式会社 is reported in Japan, a country with 88 ransomware disclosures in our corpus.

If your organisation is affected

A listing by argonauts means 藤森工業株式会社 appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, JPCERT/CC (Japan), as required for your jurisdiction.
  • Monitor for the data appearing on argonauts's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.