OTX Threat: Ukraine's UAV Supply Chain Targeted With Besomar-Themed Malware Chain

A newly identified threat group, designated as GhostShell, has been conducting cyber operations against Ukraine's unmanned aerial vehicle supply chain since February 2026. The attackers employ malicious archives containing decoy documents that impersonate Besomar, a Ukrainian manufacturer of high-precision interceptor drones, to compromise defense and procurement networks. The attack chain deploys Sectors: Defense