UTA0355
No sourced public emblem in this profile.
reference profile · reported nexus: RU (not nationality)
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. Volexity assesses with high confidence that UTA0355 successfully registered devices and downloaded email data from compromised accounts.
Source-reported aliases: . Associations do not prove equivalence.
Target geography
Catalog-listed countries (associations, not attack counts): No country-level metadata
No bound claim-post feed for this label.
Historical casebook
No dated record curated yet; absence does not establish inactivity.
Planned Kinwilder coverage
Tentative editorial review windows, contingent on evidence and review; not promised publication dates or predictions of attacks.
No assigned review window.