Marutake
About the organisation
kk-marutake.co.jp zoominfo.com/c/marutake/561552308 Marutake Co., Ltd. is a comprehensive pharmaceutical and medical wholesale company founded on June 15, 1925, and headquartered in Niigata City, Japan, with a 100-year history of connecting manufacturers to healthcare providers across the region. The company distributes prescription pharmaceuticals, medical devices, clinical diagnostic reagents, hygiene materials, nursing care products, and healthcare IT systems to hospitals, clinics, and pharmacies, primarily across Niigata, Yamagata, Miyagi, Akita, Tokyo, and Gunma prefectures. With a workforce of 477 employees and capital of ¥100 million, Marutake positions itself as a "supporter of the medical frontline," ensuring stable supply of essential medical commodities to local communities
What the listing means
Marutake appeared on the thegentlemen leak site on 06 May 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated — the attack itself is dated 28 April 2026, 8 days before the listing. This group has published 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Marutake as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on kk-marutake.co.jp, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Agriculture and Food Production organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/TWFydXRha2VAdGhlZ2VudGxlbWVu