Was Jangho Group hit by ransomware?

Jangho Group was listed by the Ransomhouse ransomware operation (China), 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 Ransomhouse ransomware group?

Ransomhouse 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 Jangho Group breach?

Ransomhouse published data attributed to Jangho Group (~743 GB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Jangho Group (江河创建集团股份有限公司)

listed as Jangho Group · Claimed by Ransomhouse · listed 2 years ago

743 GB

Data size

$740

Ransom

demanded

23m

Age

since listed · data leaked

Status timeline

ListedAug 19, 2024
Data leakeddate unknown

At a glance

Group: Ransomhouse
Status: Data leaked
Country: China
Sector: Business Services
Listed on leak site: Aug 19, 2024
Data size: 743 GB
Ransom demanded: $740

About the victim

AI dossier — public-source company profile

Jangho Group (江河创建集团股份有限公司) is a Chinese conglomerate engaged in architectural decoration, curtain wall systems, and related construction services. The group operates multiple subsidiaries including Jangho Curtain Wall, Chengda Group, and Gangyuan Decoration, with international projects in Indonesia and across Asia. The company also has healthcare divisions (Vision Eye Care clinics) and renewable energy interests (solar photovoltaic operations).

Industry: Construction & Building Materials; Architecture & Decoration

Attack summary

Severity: high — 743 GB of exfiltrated data from a large multinational conglomerate with significant operational footprint across construction, healthcare, and energy sectors. Scale and confirmed exfiltration of business data warrants high severity, though lack of specific sensitive data categories (PII at scale, financial records, medical data) prevents critical classification.

Ransomware operator claims encryption of Jangho Group systems and exfiltration of approximately 743 GB of data. The leak post displays a portfolio of multiple victim companies (primarily used for advertising purposes), with Jangho Group listed as the primary victim. No specific data categories are detailed in the excerpt provided.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business operational data
Corporate records
Project documentation

What the group claims

Jangho Group Co., Ltd. (hereinafter referred to as “Jangho Group”, “the Company” or “we”, stock code: 601886) is a large multinational corporation listed on SSE A-share mainboard. Headquartered in Beijing, the Company was established in 1999 and formerly known as Beijing Jangho Curtain Wall Co., Ltd. By upholding the holy mission of “working for human’s living environment and health”, we are devoted to supplying green building system services and high-quality medical health services. The Company has two business sectors, i.e., building decoration and medical health, and has established several world’s famous brands such as JANGHO, Sundart, Gangyuan, SLD and Vision. With our business involving more than 20 countries and regions worldwide, we take lead in such fields as building curtain wall, interior decoration and design, PV building and eye medical treatment.

The leak post

captured from the group's site

```
{"data":[{"id":"a1894b76b7004c75a3a0845799af49956592e3d9","display":"animated","header":"HOT NEWS","info":" Trellix is a global cybersecurity company.","url":"","sort":1,"views":"436242"},{"id":"336b257f582b17573c97578efd4b22762bf77344","sort":2,"header":"Trellix (McAfee & FireEye)","url":"https://www.trellix.com/","private":"false","revenue":"1.5-2 B$","employees":"5000","info":"Trellix is a global cybersecurity company formed from the October 2021 merger of McAfee Enterprise and FireEye. It provides services to over 50,000 business and government customers worldwide, protecting more than 200 million endpoints. The companys open and native extended detection and response (XDR) platform helps organizations confronted by todays most advanced threats gain confidence in the protection and resilience of their operations. Trellix, along with an extensive partner ecosystem, accelerates technology innovation through machine learning and automation to empower over 40,000 business and government customers with living security","statusDate":"DEPENDS ON YOU","status":"EVIDENCE","published":"NOT YET","action":"Encrypted","actionDate":"17/04/2026","volume":"~","content":"cybersecurity.html"…

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 Ransomhouse

Ransomhouse is a ransomware group that emerged in June 2021, operating primarily for financial gain through extortion campaigns targeting organizations across multiple sectors globally. The group's origin and specific affiliations remain unclear based on publicly available intelligence, though their operational patterns suggest they function as an independent cybercriminal organization rather than a traditional ransomware-as-a-service model. Ransomhouse employs double extortion tactics, stealing sensitive data before deploying their ransomware payload and threatening to publish the information on their leak site if victims refuse to pay the demanded ransom. The group has demonstrated a broad targeting approach, with documented attacks against 187 victims primarily concentrated in the United States, China, United Kingdom, Italy, and Spain, focusing heavily on healthcare, technology, business services, and manufacturing sectors. While specific high-profile campaigns have not been extensively documented by major security firms, the group's consistent victim count and geographic distribution indicate sustained operational capability since their emergence. As of current reporting, Ransomhouse remains active with no known major law enforcement disruptions or confirmed rebranding efforts. The group has been linked to 210 public disclosures across our corpus. First observed on a leak site on June 1, 2021; most recent post June 29, 2026. The operation is currently active.

Also tracked as: RANSOM HOUSE.

Timeline of this disclosure

August 19, 2024Jangho Group listed by Ransomhouseon the group's public leak site

Data size: 743 GB
Ransom demanded: $740

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Jangho Group is reported in China, a country with 72 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Ransomhouse means Jangho Group 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.
Monitor for the data appearing on Ransomhouse'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.