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 5, 2026GRANDHOME listed by lamashtuon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 396 disclosures indexed across all operators we track. Geographically, GRANDHOME is reported in BD, a country with 2 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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GRANDHOME

Claimed by lamashtu · listed 16 days ago

15d

Age

since listed · data leaked

Status timeline

Listed
May 5, 2026
Data leaked

At a glance

Group: lamashtu
Status: Data leaked
Country: BD
Sector: Consumer Services
Listed on leak site: May 5, 2026

About the victim

AI dossier — public-source company profile

GRANDHOME (บริษัท แกรนด์ โฮมมาร์ท จำกัด) is a Thai retailer specialising in construction materials, tiles, sanitary ware, home decor, and furnishing products, operating from Bangkok, Thailand. The company sells products from leading global brands through physical branches and an online store at grandhomemart.com. It has been in operation since 1973 and offers associated installation and rental-space services.

Industry: Home Improvement & Construction Materials Retail
Address: 82/90 Moo 6, Ngam Wong Wan Road, Thung Song Hong, Lak Si District, Bangkok 10210, Thailand
Founded: 1973

Attack summary

Severity: high — Data has been published (not merely listed), indicating confirmed exfiltration. As a retailer with a membership programme, the likely exposure of customer PII at scale elevates severity to high; insufficient detail to confirm regulated data volume required for critical.

The lamashtu group claims to have attacked GRANDHOME and has published data (disclosed status: data_published); no specific claims about encryption or exfiltration volume are detailed in the post excerpt, but the data is described as published rather than merely listed.

high

Data the group says was taken

AI dossier — extracted from the leak post

Customer personal data
Member account information
Business/operational data

What the group claims

GRANDHOME is a leading Thai retailer specializing in construction materials, home decor, and furnishing products. Established in 1973, it has grown into a major hub for high-quality tiles, sanitary ware, and kitchen innovations

Sources

Source

Indexed 16 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.