Was Garden Hotel NARITA hit by ransomware?

Garden Hotel NARITA was listed by the Donutleaks ransomware operation (Japan), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Donutleaks ransomware group?

Donutleaks is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Garden Hotel NARITA breach?

Donutleaks published data attributed to Garden Hotel NARITA. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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International Garden Hotel Narita

listed as Garden Hotel NARITA · Claimed by Donutleaks · listed 3 years ago

36m

Age

since listed · data leaked

Status timeline

ListedJul 9, 2023
Data leakeddate unknown

At a glance

Group: Donutleaks
Status: Data leaked
Country: Japan
Sector: Hospitality
Listed on leak site: Jul 9, 2023

About the victim

AI dossier — public-source company profile

International Garden Hotel Narita is a full-service hotel located near Narita International Airport in Narita City, Chiba Prefecture, Japan. The property offers guest rooms, a casual Italian-themed restaurant (AVANTI), and banquet/conference facilities suited for both leisure and business travellers. It is affiliated with the Oriental Hotels & Resorts membership programme.

Industry: Hospitality & Hotel Accommodation
Address: 241-1 Yoshikura, Narita City, Chiba Prefecture 286-0133, Japan

Attack summary

Severity: high — Data has been confirmed published by the threat actor. A hotel operating near an international airport would hold guest PII (passport copies, payment card data, contact details), corporate client records, and potentially travel itinerary information, representing significant regulated personal data exposure across an international guest base.

Donutleaks claims to have published data exfiltrated from International Garden Hotel Narita, with the disclosure status listed as data_published. No specific data categories, ransom amount, or data volume were stated in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Guest records (likely)
Reservation data (likely)
Corporate/contract client information (likely)
Employee records (likely)

What the group claims

【公式】インターナショナルガーデンホテル成田- 成田市　成田空港近くの快適で利便性の高いホテルを予約する【公式】インターナショナルガーデンホテル成田へようこそ, 成田空港近くの快適で利便性の高いホテル. インターネット上で最良の価格で成田市の快適で利便性の高いホテルを予約する【公式】インターナショナルガーデンホテル成田- 成田市　成田空港近くの快適で利便性の高いホテルを予約するhttps://gardennarita.com/Narita is a comfortable and tranquil city with a interesting history. Conveniently located for sightseeing spots such as Naritasan Shinshoji temple and close to Narita International Airport. This is an ideal location for business meetings and…

Sources

Victim sitegardennarita.com
Leak posthttp://sbc2zv2qnz5vubwtx3aobfpkeao6l4igjegm3xx7tk5suqhjkp5jxtqd.onion/garden-hotel-narita/

Source

Indexed 3 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 Donutleaks

Donutleaks is a ransomware group that emerged in August 2022, operating with primarily financial motivations and demonstrating a pattern of targeting critical infrastructure and business sectors across multiple countries. The group's origin and specific affiliations remain largely undocumented in publicly available threat intelligence reports, with limited information available from major security firms or law enforcement agencies regarding their operational structure or potential ransomware-as-a-service model. Based on the limited public documentation available, the group has demonstrated a preference for attacking healthcare, technology, manufacturing, business services, and telecommunications sectors, with their attack methodology and specific technical capabilities not extensively detailed in current threat intelligence reporting. Donutleaks has been associated with approximately 42 documented victims primarily concentrated in the United States, Italy, Iran, and Spain, though specific high-profile campaigns or ransom demands have not been widely reported by major cybersecurity organizations or law enforcement agencies. The current operational status of Donutleaks remains unclear due to limited public threat intelligence coverage of this particular threat actor. The group has been linked to 42 public disclosures across our corpus. First observed on a leak site on August 24, 2022; most recent post July 24, 2024. The operation is currently inactive.

Timeline of this disclosure

July 9, 2023Garden Hotel NARITA listed by Donutleakson the group's public leak site

Other recent disclosures by Donutleaks

Donutleaks has been linked to 42 public victims on Darkfield. A sample of the most recent:

See the full Donutleaks dossier →

Sector and geography

This disclosure adds to ransomware activity in the Hospitality sector, which has 103 disclosures indexed across all operators we track. Geographically, Garden Hotel NARITA is reported in Japan, a country with 220 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Donutleaks means Garden Hotel NARITA 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 Donutleaks'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.