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PT Bukit Muria Jaya

listed as BMJ Paperpack · Claimed by Worldleaks · listed 2 months ago

53d
Age
since listed · data leaked

Status timeline

  1. ListedMay 22, 2026
  2. Data leakeddate unknown

At a glance

Group
Worldleaks
Status
Data leaked
Country
Indonesia
Sector
Manufacturing
Listed on leak site
May 22, 2026

About the victim

AI dossier — public-source company profile

PT Bukit Muria Jaya (trading as BMJ Paperpack) is an Indonesian manufacturer of specialty paper products and packaging solutions for the global cigarette industry. Founded in 1991, the company produces cigarette paper, tipping paper, plug wrap, printed packaging, and related materials, serving customers across multiple continents with a focus on sustainability and high-efficiency solutions.

Industry
Specialty Paper & Packaging Manufacturing – Cigarette Industry
Address
Jl. Karawang Spoor, Kec. Teluk Jambe, P.O BOX 54 KW, Karawang 41300, Jawa Barat, Indonesia
Founded
1991

Attack summary

Severity: low — Leak post is truncated with no substantive details on data exfiltrated, proof files advertised, or operational impact. No sensitive data categories confirmed. Disclosure status is 'data_published' but without evidence of what was actually released or its sensitivity.

The worldleaks group claims to have attacked BMJ Paperpack and published data. No specific details on encryption, exfiltration, or data types are provided in the truncated leak post.

low

Original description

AI-summarised, not from the leak post

N/A

Sources

Source

Indexed 2 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.

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Disclosure context

About worldleaks

Based on the limited available data, worldleaks is a recently emerged ransomware group that was first observed in May 2025 and appears to be primarily financially motivated, having claimed 134 victims in a relatively short timeframe since its emergence. The group's origin and organizational structure remain unclear, with no publicly documented information from major cybersecurity firms or law enforcement agencies regarding their country of origin, potential affiliations, or operational model. Their targeting patterns indicate a focus on English-speaking countries, particularly the United States, United Kingdom, and Canada, with additional activity observed in Germany and Japan, while their sector targeting shows a preference for healthcare, technology, manufacturing, and consumer services organizations. Due to the group's recent emergence and limited public documentation by established threat intelligence sources, specific details about their attack methodologies, encryption techniques, extortion tactics, and notable campaigns have not yet been comprehensively analyzed or reported by organizations such as CISA, FBI, or major cybersecurity research firms. The group appears to remain active as of the most recent observations, though comprehensive threat intelligence profiling awaits further analysis and documentation by established cybersecurity authorities. The group has been linked to 173 public disclosures across our corpus. First observed on a leak site on May 18, 2025; most recent post July 2, 2026. The operation is currently active.

Timeline of this disclosure

  • May 22, 2026BMJ Paperpack listed by worldleakson the group's public leak site

Other recent disclosures by worldleaks

worldleaks has been linked to 173 public victims on Darkfield. A sample of the most recent:

See the full worldleaks dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, BMJ Paperpack is reported in Indonesia, a country with 37 ransomware disclosures in our corpus.

If your organisation is affected

A listing by worldleaks means BMJ Paperpack 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 worldleaks'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.