UTA0355
UTA0355 is a threat actor group with an ideological motive, tracked by Brandefense. It uses 10 MITRE ATT&CK techniques.
- Techniques
- 10
- Exploited CVEs
- No CVE data
- Record updated
About UTA0355.
UTA0355 is a Russian threat actor that conducts phishing campaigns targeting individuals and organizations associated with Ukraine. The actor initiates contact via email, inviting targets to a video conference, and follows up through Signal or WhatsApp to enhance legitimacy. After establishing communication, UTA0355 prompts victims to log in via a malicious M365 URL, subsequently requesting approval for a 2FA authentication to access email data.
Last updated Sep 12, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.