Disclosure context

About lamashtu

Based on the limited available information, Lamashtu is an emerging ransomware group that was first observed in April 2026, appearing to be financially motivated based on their operational patterns. The group's origin and potential affiliations remain unclear due to their recent emergence and limited public documentation by major threat intelligence organizations. Lamashtu's attack methodology and specific technical capabilities have not been extensively documented by established security researchers, though their targeting patterns suggest they employ standard ransomware deployment techniques across multiple industry verticals. The group has conducted at least 8 confirmed attacks, demonstrating a geographically diverse targeting approach with victims identified in France, Italy, the United States, Singapore, and Malaysia, while focusing primarily on business services, manufacturing, transportation and logistics, hospitality and tourism, and energy sectors. Given the group's recent first observation in April 2026 and limited public threat intelligence reporting from established sources like CISA, FBI, or major security firms, Lamashtu appears to represent a newly active threat actor whose current operational status and long-term capabilities require further monitoring and analysis. The group has been linked to 30 public disclosures across our corpus. First observed on a leak site on April 13, 2026; most recent post May 19, 2026. The operation is currently active.

Timeline of this disclosure

May 11, 2026Depósito Dental Universitario listed by lamashtuon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Depósito Dental Universitario is reported in MX, a country with 52 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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Depósito Dental Universitario

Claimed by lamashtu · listed 10 days ago

Age

since listed · data leaked

Status timeline

Listed
May 11, 2026
Data leaked

At a glance

Group: lamashtu
Status: Data leaked
Country: MX
Sector: Healthcare
Listed on leak site: May 11, 2026

About the victim

AI dossier — public-source company profile

Depósito Dental Universitario (DDU) is a Mexican company based in San Luis Potosí, SLP, specializing in the distribution of dental supplies and radiological services. It operates an online store serving dental professionals, students, and the general public, offering nationwide shipping across Mexico. The company also provides radiology services and targets the odontological sector.

Industry: Dental Supplies Distribution & Radiological Services
Address: Fray José de Arlegui #795, Col. Virreyes, San Luis Potosí, SLP, CP 78240, México

Attack summary

Severity: medium — Data has been published (disclosed status: data_published) suggesting confirmed exfiltration, but the leak post provides no detail on data types, volume, or sensitivity, and no proof count or data inventory is stated; the healthcare-adjacent sector elevates concern slightly above low.

The ransomware group Lamashtu claims an attack on DDU, with the disclosure status indicating data has been published; no specific claims about encryption or exfiltration volume are detailed in the post.

medium

What the group claims

Depósito Dental Universitario (DDU), a Mexican company specializing in the distribution of dental supplies and radiological services.

Sources

Victim siteddu.mx
Leak posthttp://lamashtux5j74mcm7lwwgn5yrvuwtrpxjoyendif3v3hrztjesfoyayd.onion/post/d8a7c97ccb298dfa670f7c15ded1cc89

Source

Indexed 10 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.