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Threat actor

UNC6426

Last fetched

UNC6426 is a threat actor tracked in WhisperGraph's MITRE ATT&CK corpus, observed using 0 techniques.

Description

UNC6426 exploited a supply chain compromise of the nx npm package to steal a developer's GitHub Personal Access Token and gain access to a victim's cloud environment. They abused the GitHub-to-AWS OpenID Connect trust to create a new administrator role, leveraging overly permissive permissions associated with the compromised GitHub-Actions-CloudFormation role. Using the legitimate open-source tool Nord Stream, UNC6426 conducted reconnaissance and extracted secrets from CI/CD environments, leading to the exfiltration of files from AWS S3 buckets and data destruction. The actor escalated to full AWS administrator permissions in under 72 hours.

Techniques by tactic

No ATT&CK techniques are recorded for UNC6426 in WhisperGraph.

Attributed infrastructure

None published. WhisperGraph carries no ATTRIBUTED_TO edge to UNC6426 today — this states the absence of a published link, not that UNC6426 has no infrastructure.

References

© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

Related pages

Pivot from UNC6426 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 25
Run yourself →

Techniques 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 1000
Run yourself →

Infrastructure publicly attributed to this actor.


MATCH (n)-[:ATTRIBUTED_TO]->(a:ACTOR {name: $name})
RETURN labels(n)[0] AS kind, n.name AS name
LIMIT 25
Run yourself →

Or query Whisper from your own LLM workflow via the Whisper MCP server.