Disclosure context

About blacknevas

Blacknevas is an emerging ransomware group that was first observed in August 2025, appearing to be primarily financially motivated based on their targeting patterns and operational characteristics. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their diverse geographic targeting suggests either a distributed operation or broad opportunistic approach. Based on available victim data, Blacknevas has compromised at least 23 organizations across multiple countries, with the United States, Spain, India, Japan, and Thailand being the most frequently targeted nations, while their sector focus spans technology, manufacturing, energy, and consumer services industries, suggesting they employ opportunistic rather than sector-specific targeting methodologies. The group's attack vectors, specific tools, and whether they operate as a Ransomware-as-a-Service model or maintain independent operations have not been publicly documented by major cybersecurity firms or government agencies. Due to the group's recent emergence in August 2025, there is insufficient public reporting from established sources like CISA, FBI, or major threat intelligence providers to detail notable campaigns or significant attacks beyond the confirmed victim count. Given the recency of their first observed activity, Blacknevas appears to remain active as of late 2025, though comprehensive threat intelligence profiles from authoritative sources have yet to be published. The group has been linked to 31 public disclosures across our corpus. First observed on a leak site on August 6, 2025; most recent post April 30, 2026. The operation is currently active.

Also tracked as: black nevas.

Timeline of this disclosure

September 11, 2025CARTONAJES BERNABEU SAU www.cartonajesbernabeu.com serviced by IT company Verne Group www.... listed by blacknevason the group's public leak site

Data size: 1.2 TB
Records: 787K files

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, CARTONAJES BERNABEU SAU www.cartonajesbernabeu.com serviced by IT company Verne Group www.... is reported in Spain, a country with 212 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

CARTONAJES BERNABEU SAU www.cartonajesbernabeu.com serviced by IT company Verne Group www....

Claimed by blacknevas · listed 8 months ago

1.2 TB

Data size

787K files records

Age

since listed · data leaked

Status timeline

Listed
Sep 11, 2025
Data leaked

At a glance

Group: blacknevas
Status: Data leaked
Country: Spain
Sector: Manufacturing
Listed on leak site: Sep 11, 2025
Data size: 1.2 TB
Records: 787K files

About the victim

AI dossier — public-source company profile

Cartonajes Bernabeu SAU is a Spanish company specialising in the production and sale of cardboard containers and packaging solutions, founded in 1965 and headquartered in Manises, Valencia. It is part of the wider Cartonajes Bernabeu group and operates production and warehouse facilities. The company offers customised packaging solutions for clients across various industries.

Industry: Cardboard & Packaging Manufacturing
Address: Manises, Valencia, Spain
Founded: 1965

Attack summary

Severity: high — 1.2 TB of data is confirmed exfiltrated and a file listing has been published/made accessible, indicating significant business data exposure at scale. While no explicit PII or regulated data categories are confirmed, the volume and published file index raise the severity to high.

The BlackNevas ransomware group claims to have exfiltrated 1.2 TB of data from Cartonajes Bernabeu SAU, with a file listing hosted on Gofile available upon request. The post also implicates the company's IT/cybersecurity service provider, Verne Group, in the breach context.

high

Data the group says was taken

AI dossier — extracted from the leak post

File listing index (7,000+ files)
Business/operational documents
Potentially proprietary packaging design files
Internal company data (unspecified)

The group's post references roughly 1 proof file.

What the group claims

serviced by IT company Verne Group www.vernegroup.com (Cybersecurity and monitoring)CARTONAJES BERNABEU SAU www.cartonajesbernabeu.com CARTONAJES BERNABEU SAU, a company specialising in the production and sale of cardboard containers and packaging, was founded in 1965. Its headquarters are in Manises (Valencia, Spain). The company is part of the Cartonajes Bernabeu group and has production and warehouse facilities. The company offers customised packaging solutions for various industries.list of files, we will provide any file from the list upon request:https://gofile.io/d/hu4njf787k files1.2 TB

Sources

Leak posthttp://ctyfftrjgtwdjzlgqh4avbd35sqrs6tde4oyam2ufbjch6oqpqtkdtid.onion/publications/details/ba43ccf8-19fc-442c-8cac-425e8ed95df5

Source

Indexed 8 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.