Was cle**rp**er.eu hit by ransomware?

cle**rp**er.eu was listed by the obscura ransomware operation, 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 obscura ransomware group?

obscura 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 cle**rp**er.eu breach?

obscura published data attributed to cle**rp**er.eu. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Clearper.eu

listed as cle**rp**er.eu · Claimed by Obscura · listed 7 months ago

Age

since listed · data leaked

Status timeline

ListedDec 15, 2025
Data leakeddate unknown

At a glance

Group: Obscura
Status: Data leaked
Listed on leak site: Dec 15, 2025

About the victim

AI dossier — public-source company profile

Clearper.eu is described by the ransomware operator as a technology leader for modern energy infrastructure, suggesting the company provides technology products or services related to energy systems. The company operates under the .eu domain, indicating it is based in or primarily serves the European market. No further verifiable details are available from the public site excerpt.

Industry: Energy Infrastructure Technology

Attack summary

Severity: medium — Data is listed as published, indicating some level of exfiltration or disclosure, but no specific data types, volume, or sensitivity details are provided, preventing a higher severity classification.

The group 'obscura' claims to have attacked Clearper.eu and has published data (disclosed status: data_published), though the specific nature of the attack (encryption, exfiltration, or both) and the type of data involved are not detailed in the leak post.

medium

What the group claims

Technology leader for modern energy infrastructure

Sources

Victim sitecle**rp**er.eu

Source

Indexed 7 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 obscura

Obscura is a recently emerged ransomware group that was first observed in September 2025, operating with apparent financial motivations based on their targeting patterns across multiple sectors and geographic regions. The group has compromised at least 33 known victims since their emergence, demonstrating rapid operational capabilities despite their recent entry into the ransomware landscape. Limited public documentation exists regarding their country of origin, operational structure, or affiliations with established ransomware families, though their targeting pattern suggests either opportunistic attacks or access to diverse initial compromise vectors. Their victim profile spans multiple sectors including healthcare, technology, manufacturing, and construction, with geographic focus on the United States, Malaysia, Portugal, Egypt, and Denmark, indicating either broad targeting criteria or access to varied attack infrastructure across different regions. Due to the group's recent emergence and limited public reporting from major security vendors and law enforcement agencies, specific details regarding their technical capabilities, encryption methods, data exfiltration practices, or ransom demands remain undocumented in open-source intelligence. The group appears to remain active as of late 2025, though insufficient time has elapsed to determine their long-term operational sustainability or potential law enforcement attention. The group has been linked to 33 public disclosures across our corpus. First observed on a leak site on September 5, 2025; most recent post January 11, 2026. The operation is currently active.

Timeline of this disclosure

December 15, 2025cle**rp**er.eu listed by obscuraon the group's public leak site

Other recent disclosures by obscura

obscura has been linked to 33 public victims on Darkfield. A sample of the most recent:

See the full obscura dossier →

If your organisation is affected

A listing by obscura means cle**rp**er.eu 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 obscura'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.