Disclosure context

About m3rx

Based on the limited publicly available information, m3rx is an emerging ransomware group first observed in April 2026 with a relatively small victim count of eight organizations, suggesting they are either a newly formed operation or a smaller-scale criminal enterprise focused on financial gain. The group's origin and affiliations remain unclear, with no documented evidence from major security vendors or law enforcement agencies regarding their geographical base, operational structure, or whether they operate as an independent cell or as part of a larger ransomware-as-a-service ecosystem. Their attack methodology and specific technical capabilities have not been extensively documented by established threat intelligence sources, though their targeting pattern indicates a preference for English-speaking nations including Great Britain, Australia, and the United States, as well as operations in Switzerland and Italy, with victims spanning consumer services, business services, technology, and healthcare sectors. No major campaigns, high-profile victims, or significant ransoms have been publicly reported by CISA, FBI, Mandiant, or other reputable security researchers, likely due to the group's recent emergence and limited scope of operations. Given their recent first observation date and small victim count, m3rx appears to be in early operational stages with their current activity status and long-term viability remaining uncertain. The group has been linked to 19 public disclosures across our corpus. First observed on a leak site on April 29, 2026; most recent post May 17, 2026. The operation is currently active.

Timeline of this disclosure

May 17, 2026dosocho.es listed by m3rxon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, dosocho.es is reported in ES, a country with 116 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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dosocho.es

Claimed by m3rx · listed 4 days ago

Age

since listed · data leaked

Status timeline

Listed
May 17, 2026
Data leaked

At a glance

Group: m3rx
Status: Data leaked
Country: ES
Sector: Not Found
Listed on leak site: May 17, 2026

About the victim

AI dossier — public-source company profile

dosocho.es is a Spanish-registered domain (country-code .es). No public site content was available at the time of analysis, making it impossible to determine the nature, scale, or activities of the associated organisation beyond its Spanish registration.

Attack summary

Severity: low — The post is essentially a bare listing with a contact handle and no proof files, no data samples, no stated data categories, and no confirmed exfiltration or operational impact described.

The group m3rx claims to have obtained data from dosocho.es and states it is available for purchase via Tox messenger; no details on encryption, exfiltration volume, or data categories are provided in the post.

low

What the group claims

+34 918 264 028. Recambios Generales del Automóvil Dosocho S.L. is a Madrid-based Spanish company specializing in the retail and e-commerce distribution of brand-new automotive spare parts and accessories. Operating through its dedicated platforms like dosochoauto.es, the company provides a comprehensive catalog of high-quality components tailored for various vehicle repairs and maintenance Stolen: 50gb 28k files

The leak post

captured from the group's site

If you are interested in this data, please contact our support.Tox: 9A1217BEDA4AB77052A25D17CB6FFB34AFA2BE462E607F2FD8E1DF1DDD4CA16A64E18B1A0BF2

Sources

Victim sitedosocho.es
Leak posthttp://4k6plf4h2cm2nco6ae3inrsxnmqgl6lllmwefydhnlcq4tuhwbj4qpad.onion#dosocho.es

Source

Indexed 4 days 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.