Threat actor
Winter Vivern
Last fetched
Winter Vivern is a threat actor tracked in WhisperGraph's MITRE ATT&CK corpus, observed using 27 techniques and also known as 4 other names.
Also known as
UAC-0114, TA473, TAG-70, TA-473
Description
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.(Citation: DomainTools WinterVivern 2021)(Citation: SentinelOne WinterVivern 2023)(Citation: CERT-UA WinterVivern 2023)(Citation: ESET WinterVivern 2023)(Citation: Proofpoint WinterVivern 2023)
Techniques by tactic
Attributed infrastructure
None published. WhisperGraph carries no ATTRIBUTED_TO edge to Winter Vivern today — this states the absence of a published link, not that Winter Vivern has no infrastructure.
References
- https://www.sentinelone.com/labs/winter-vivern-uncovering-a-wave-of-global-espionage/
- https://www.domaintools.com/resources/blog/winter-vivern-a-look-at-re-crafted-government-maldocs
- https://www.welivesecurity.com/en/eset-research/winter-vivern-exploits-zero-day-vulnerability-roundcube-webmail-servers/
- https://www.proofpoint.com/us/blog/threat-insight/exploitation-dish-best-served-cold-winter-vivern-uses-known-zimbra-vulnerability
- https://socprime.com/blog/uac-0114-group-aka-winter-vivern-attack-detection-hackers-launch-malicious-phishing-campaigns-targeting-government-entities-of-ukraine-and-poland/
- https://cybersecuritynews.com/russian-hackers-xss-flaw/
- https://www.recordedfuture.com/russia-aligned-tag-70-targets-european-government-and-military-mail
- https://www.bsi.bund.de/DE/Themen/Unternehmen-und-Organisationen/Cyber-Sicherheitslage/Analysen-und-Prognosen/Threat-Intelligence/Aktive_APT-Gruppen/aktive-apt-gruppen_node.html
- https://attack.mitre.org/groups/G1035
- https://cert.gov.ua/article/3761104
- https://www.domaintools.com/resources/blog/winter-vivern-a-look-at-re-crafted-government-maldocs/
© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Related pages
Pivot from Winter Vivern into its techniques, tactics and any attributed infrastructure.
Queries
Resolves the slug to this actor, merging every duplicate node sharing the same name.
MATCH (a:ACTOR)
WHERE a.name =~ $pattern OR any(x IN a.aliases WHERE x =~ $pattern)
RETURN a.id AS id, a.name AS name, a.aliases AS aliases, a.description AS description,
a.references AS references, a.campaigns AS campaigns
LIMIT 25Techniques this actor uses, grouped by the tactic each one serves.
MATCH (a:ACTOR {name: $name})-[:USES_TECHNIQUE]->(t:ATTACK_PATTERN)
OPTIONAL MATCH (t)-[:USES_TACTIC]->(tac:ATTACK_PATTERN)
RETURN t.id AS techniqueId, t.name AS techniqueName, tac.id AS tacticId, tac.name AS tacticName
LIMIT 1000Infrastructure publicly attributed to this actor.
MATCH (n)-[:ATTRIBUTED_TO]->(a:ACTOR {name: $name})
RETURN labels(n)[0] AS kind, n.name AS name
LIMIT 25Or query Whisper from your own LLM workflow via the Whisper MCP server.