New backdoor targeting Ukrainian entities with possible links to Laundry Bear
Essential information
- Published
- 17/03/2026 11:01
- Modified
- 17/03/2026 11:17
- Tags
- 2026-03-17 backdoor cpl files drillapp edge browser javascript lnk files russia ukraine websocket
- Related entities
- 28 observables, 1 intrusion sets (apt), 12 techniques (mitre), 1 malware, 3 others
Description
A new campaign targeting Ukrainian entities has been identified, attributed to actors linked to Russia. The campaign uses judicial and charity-themed lures to deploy a JavaScript-based backdoor called DRILLAPP, which runs through the Edge browser. This backdoor enables various actions including file manipulation, microphone access, and webcam capture. Two variants of the campaign have been observed, with the second variant introducing additional capabilities. The attackers utilize the browser's capabilities to evade detection and gain access to sensitive resources. The campaign shares tactics with a previously reported Laundry Bear operation, leading to a low-confidence attribution to this group.