Winter Vivern

Origin🇷🇺 Rússia

Techniques (MITRE ATT&CK)27

SourceMITRE ATT&CK

Targeted regions: Germany

Also known as:TA-473TA473TAG-70UAC-0114

About the group

Winter Vivern is a group linked to Russian and Belorussian interests active since at least 2020 targeting various European government and NGO entities, along with sporadic targeting of Indian and US victims. The group leverages a combination of document-based phishing activity and server-side exploitation for initial access, leveraging adversary-controlled and -created infrastructure for follow-on command and control.

Attack chain

Plausible scenario built from the group's real techniques, ordered by the phases of an attack. Each step shows how the group typically operates.

Arsenal severity52

Impact: High

Illustrative chain derived from techniques documented in MITRE ATT&CK — it does not represent a specific past attack. Severity summarizes the known arsenal (kill-chain coverage, actively exploited CVEs, techniques).

Techniques (MITRE ATT&CK) 27

How the group operates, mapped to the MITRE ATT&CK matrix and organized by the phases of an attack.

Reconnaissance

Vulnerability Scanning

Resource development

Domains Virtual Private Server Web Services

Initial access

Drive-by Compromise Exploit Public-Facing Application Spearphishing Attachment

Execution

Scheduled Task Command and Scripting Interpreter PowerShell Windows Command Shell JavaScript Malicious Link

Discovery

System Owner/User Discovery System Information Discovery File and Directory Discovery

Collection

Web Portal Capture Screen Capture Local Email Collection Automated Collection

Command and control

Web Protocols Ingress Tool Transfer

Exfiltration

Automated Exfiltration Exfiltration Over C2 Channel

stealth

Masquerading Masquerade Task or Service Deobfuscate/Decode Files or Information

Exploited vulnerabilities 2

CVEs this group is known to exploit, per MITRE ATT&CK. Ordered by real-world severity.

CVE-2014-7169CRITICALEPSS 100%KEV MITRE ATT&CK

CVE-2016-6662EPSS 68% MITRE ATT&CK

References

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