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

August 6, 2025PROMOSFERA S.r.l. promosfera.com listed by blacknevason the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, PROMOSFERA S.r.l. promosfera.com is reported in Italy, a country with 496 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

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PROMOSFERA S.r.l. promosfera.com

Claimed by blacknevas · listed 10 months ago

Age

since listed · data leaked

Status timeline

Listed
Aug 6, 2025
Data leaked

At a glance

Group: blacknevas
Status: Data leaked
Country: Italy
Sector: Business Services
Listed on leak site: Aug 6, 2025

About the victim

AI dossier — public-source company profile

Promosfera S.r.l. is an Italian international prize promotions and contests agency operating for 19 years across 85+ countries. They specialize in organizing sweepstakes, giveaways, and promotional campaigns for brands, offering legal consultation, contest software, and full-service management of competitions across Europe, Asia, and America.

Industry: Marketing Services & Promotional Contests
Founded: 2005

Attack summary

Severity: high — Confirmed exfiltration of personally identifiable information (PII) at scale: hundreds of thousands of email/name combinations and tens of thousands of records with phone numbers. Includes passport data and employee/client documents. No encryption mentioned, data published and monetized. Exposure spans multiple sensitive categories affecting employees, clients, and contest participants.

BlackNevas claims to have exfiltrated passports, employee and client documents, and databases of promotional participants. The group states they have obtained hundreds of thousands of email addresses with full names, and tens of thousands of records with phone numbers, along with internal company documentation.

high

Data the group says was taken

AI dossier — extracted from the leak post

passports
employee documents
client documents
promotional participant database
email addresses (hundreds of thousands)
full names
phone numbers (tens of thousands)
internal company documentation

What the group claims

passports, employee and client documents, databases of promotional participants - hundreds of thousands of emails + full names, tens of thousands of emails + full names + phone numbersinternal company documentationhttps://gofile.io/d/5gNeSzhttps://gofile.io/d/dY7rYEWe ask all our partners, friends and clients to contact us to discuss the acquisition of this data. You know the contacts. For new members, please wait in the Contacts tab.Advertising:We are always ready to cooperate in any form, do you need specific data? We will try to provide it to you as soon as possible, we will receive and download your competitors' data, provide a list of what you are interested in. We are also ready to cooperate with law firms and data leak victims. We will provide all the information you need about the company that was negligent and provided access to data to its clients.

Sources

Source

Indexed 10 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.