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

April 13, 2026International Assistance Sdn listed by lamashtuon 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, International Assistance Sdn is reported in MY, a country with 29 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

← All victims

International Assistance Sdn. Bhd.

listed as International Assistance Sdn · Claimed by lamashtu · listed 1 month ago

37d

Age

since listed · data leaked

Status timeline

Listed
Apr 13, 2026
Data leaked

At a glance

Group: lamashtu
Status: Data leaked
Country: MY
Sector: Business Services
Listed on leak site: Apr 13, 2026

About the victim

AI dossier — public-source company profile

International Assistance Sdn. Bhd. (IA) is a Malaysia-based healthcare services company established in 2012, offering Third-Party Administration, medical claims administration and adjudication, cashless access, medical concierge, and contact centre outsourcing. The company operates with approximately 40,000 service providers across 15 offices worldwide, positioning itself as a preferred healthcare TPA and contact centre provider in the region. It is ISO certified and serves corporate clients and their members with borderless healthcare access.

Industry: Healthcare Third-Party Administration & Contact Centre Outsourcing
Founded: 2012

Attack summary

Severity: critical — The victim is a healthcare Third-Party Administrator handling medical claims, adjudication, membership data, and personal health information at regional scale; data_published status indicates confirmed exfiltration of what is very likely regulated, sensitive medical and PII data across a large member base.

The ransomware group Lamashtu claims to have compromised International Assistance Sdn. Bhd. and has published data (disclosed status: data_published), though no ransom amount or specific data volume was stated in the post. Given the company's operations in medical claims administration and membership data management, sensitive health and personal data is likely at stake.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Medical claims records
Member personal data
Membership and data management files
Medical concierge and second opinion records
Corporate client data
Contact centre operational data

What the group claims

To provide the highest standard of service which adds value to our customers with the ultimate goal of becoming the preferred healthcare Contact Centre and Third-Party Administrator infrastructure and service provider in Malaysia.

Sources

Source

Indexed 1 month 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.