Was Nu-Pro Group hit by ransomware?

Nu-Pro Group was listed by the Malas ransomware operation (United Kingdom), 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 Malas ransomware group?

Malas 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 Nu-Pro Group breach?

Malas published data attributed to Nu-Pro Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Nu-Pro Group

Claimed by Malas · listed 3 years ago

39m

Age

since listed · data leaked

Status timeline

ListedApr 9, 2023
Data leakeddate unknown

At a glance

Group: Malas
Status: Data leaked
Country: United Kingdom
Sector: Business Services
Listed on leak site: Apr 9, 2023

About the victim

AI dossier — public-source company profile

Nu-Pro Group is a UK-based business services company operating under the domain nupro.co.uk. Based on the available information, the organisation appears to provide professional or managed business services within the United Kingdom. No further detail about their operations or scale is available from the leak post or public site.

Industry: Business Services

Attack summary

Severity: high — Data is marked as published (disclosed), indicating confirmed exfiltration rather than a mere listing. Exploitation of a known Zimbra vulnerability typically yields access to email archives and sensitive communications, representing significant business data exposure. Insufficient evidence to elevate to critical without confirmation of regulated PII or financial/medical data at scale.

The Malas ransomware group claims to have compromised Nu-Pro Group by exploiting a Zimbra vulnerability, with data described as published. The post indicates data exfiltration has occurred, though specific data categories and volume were not detailed in the available excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post

Email communications (via Zimbra exploit)
Business correspondence
Potentially internal documents

What the group claims

using Zimbra vulnerability

Sources

Victim sitenupro.co.uk
Leak posthttp://malas2urovbyyavjzaezkt5ohljvyd5lt7vv7mnsgbf2y4bwlh72doqd.onion/posts/defaulters/

Source

Indexed 3 years 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 Malas

**Overview**: Malas is a ransomware group that emerged in April 2023, operating with primarily financial motivations and targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity levels, compromising approximately 170 victims within its first operational period. **Origin & Affiliation**: Public documentation regarding Malas' specific country of origin and operational structure remains limited in available CISA, FBI, and security researcher reports. The group's targeting patterns across both Western nations and Russia suggest either independent operations or a complex operational structure that crosses traditional geopolitical boundaries. **Attack Methodology**: Detailed technical analysis of Malas' specific attack vectors, tools, and encryption methods has not been extensively documented in publicly available threat intelligence reports from major security organizations. Based on victim distribution patterns, the group appears to employ effective initial access techniques that enable them to successfully compromise diverse organizational targets across multiple countries and industry sectors. **Notable Campaigns**: While Malas has accumulated a substantial victim count of 170 organizations, specific high-profile attacks or record ransom demands have not been prominently featured in public security advisories or law enforcement communications. The group's targeting of media, technology, manufacturing, and transportation sectors across Italy, Russia, Germany, France, and the United States indicates a broad operational scope. **Current Status**: Given the limited public documentation available from authoritative sources, the current operational status of Malas remains unclear based on verified threat intelligence reporting. The group has been linked to 170 public disclosures across our corpus. First observed on a leak site on April 9, 2023; most recent post May 18, 2023. The operation is currently inactive.

Timeline of this disclosure

April 9, 2023Nu-Pro Group listed by Malason the group's public leak site

Other recent disclosures by Malas

Malas has been linked to 170 public victims on Darkfield. A sample of the most recent:

See the full Malas dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Nu-Pro Group is reported in United Kingdom, a country with 1,217 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Malas means Nu-Pro Group 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.
Report the incident to your national CERT, NCSC (United Kingdom), as required for your jurisdiction.
Monitor for the data appearing on Malas'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.