Disclosure context

About osiris

Osiris is a recently emerged ransomware group first observed in December 2025, operating with apparent financial motivations based on their targeting patterns and limited known victim base of three organizations. The group's origin and affiliations remain unclear due to their recent emergence, though their targeting of victims across the United States, India, and the Philippines suggests either a broad opportunistic approach or potential connections to actors operating across these regions. Limited intelligence is available regarding Osiris's specific attack methodology, encryption techniques, or whether they employ data exfiltration tactics prior to encryption, though their focus on manufacturing and technology sectors indicates they may be targeting organizations with valuable intellectual property or operational data. No major high-profile campaigns or significant ransoms have been publicly documented for this group, likely due to their recent emergence and small victim count. Given the December 2025 first observation date, Osiris appears to be a newly active threat actor, though insufficient data exists to determine their operational tempo, capabilities, or long-term threat potential. The group has been linked to 3 public disclosures across our corpus. First observed on a leak site on December 18, 2025; most recent post March 23, 2026. The operation is currently active.

Timeline of this disclosure

December 18, 2025The Araneta Group listed by osirison the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, The Araneta Group is reported in PH, a country with 5 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

The Araneta Group

Claimed by osiris · listed 5 months ago

Age

since listed · data leaked

Status timeline

Listed
Dec 18, 2025
Data leaked

At a glance

Group: osiris
Status: Data leaked
Country: PH
Sector: Not Found
Listed on leak site: Dec 18, 2025

About the victim

AI dossier — public-source company profile

The Araneta Group is a private, diversified conglomerate headquartered in the Philippines, operating across property development, food service, leisure and entertainment, and hospitality sectors. It is composed of five main business units: ACI, Inc., PPI Holdings Inc., Uniprom Inc., Araneta Hotels Inc., and Progressive Development Corporation. The group employs approximately 12,000 people and is associated with the landmark Araneta City development in Cubao, Quezon City.

Industry: Diversified Conglomerate (Property Development, Hospitality & Entertainment)
Address: Araneta City, Cubao, Quezon City, Metro Manila, Philippines
Employees: 12000

Attack summary

Severity: high — Data has been confirmed as published by the threat actor against a large private conglomerate with approximately 12,000 employees, indicating exfiltration of significant business data at scale. The breadth of business units (hospitality, property, food service) suggests a wide variety of potentially sensitive corporate and employee records are at risk.

The osiris ransomware group claims to have compromised The Araneta Group and has published data (disclosed status: data_published), indicating both potential exfiltration and/or encryption of company data. No ransom amount or specific data volume has been stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business records
Employee data
Financial records
Property development documents
Hospitality and entertainment operations data

What the group claims

The Araneta Group is a private, diversified conglomerate in the Philippines — active in property development, food service, leisure & entertainment, and hospitality — and is composed of five main business units including ACI, Inc., PPI Holdings Inc., Uniprom Inc., Araneta Hotels Inc. and Progressive Development Corporation. aranetacity.com, aranetagroup.com The group employs around 12,000 people. While publicly available consolidated revenue figures for the entire group are not clearly disclosed, one of its listed related entities (separate from the core private group) — Araneta Properties, Inc. (PSE: ARA) — reported gross revenue of ₱706.7 million in 2024

Sources

Victim sitearanetacity.com

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.