Was CH Paper hit by ransomware?

CH Paper was listed by the Deadlock 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 Deadlock ransomware group?

Deadlock 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 CH Paper breach?

Deadlock published data attributed to CH Paper. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Cheng Heng Paper Products Co (Pte) Ltd

listed as CH Paper · Claimed by Deadlock · listed 5 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJun 15, 2026
Data leakeddate unknown

At a glance

Group: Deadlock
Status: Data leaked
Country: China
Sector: Manufacturing
Listed on leak site: Jun 15, 2026

About the victim

AI dossier — public-source company profile

Cheng Heng Paper is a regional manufacturer of corrugated cardboard boxes and custom packaging solutions. Operating across Malaysia, Indonesia, and China with headquarters in Singapore, the company serves logistics, e-commerce, and commercial retail sectors.

Industry: Packaging & Corrugated Cardboard Manufacturing

Attack summary

Severity: medium — Data has been published (disclosed_status confirms 'data_published'), indicating confirmed exfiltration, but no specific sensitive data types, volume, or operational impact is documented in the available post excerpt. No ransom demand is stated.

Deadlock claims to have attacked Cheng Heng Paper and published exfiltrated data. The group's leak post does not specify encryption status, ransom demand, or details of compromised data.

medium

What the group claims

Cheng Heng Paper Products Co (Pte) Ltd is a prominent regional manufacturer supplying corrugated cardboard boxes and custom packaging solutions. The company, with operations across Malaysia, Indonesia, and China, offers certified, durable products for logistics, e-commerce, and commercial retail.

Sources

Victim sitewww.chenghengpaper.com

Source

Indexed 5 hours 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 Deadlock

Deadlock is a ransomware operator currently tracked by Darkfield. The group has been linked to 10 public disclosures across our corpus. First observed on a leak site on June 15, 2026. The operation is currently active.

Timeline of this disclosure

June 15, 2026CH Paper listed by Deadlockon the group's public leak site

Other recent disclosures by Deadlock

Deadlock has been linked to 10 public victims on Darkfield. A sample of the most recent:

See the full Deadlock dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,672 disclosures indexed across all operators we track. Geographically, CH Paper is reported in China, a country with 39 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Deadlock means CH Paper 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 Deadlock'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.