Threat actor
Sima
Last fetched
Sima is a threat actor tracked in WhisperGraph's MITRE ATT&CK corpus, observed using 0 techniques.
Description
Sima is a group of suspected Iranian origin targeting Iranians in diaspora. In February 2016, Iran-focused individuals received messages purporting to be from Human RightsWatch's (HRW) Emergencies Director, requesting that they read an article about Iran pressing Afghanr efugees to fight in Syria. While referencing a real report published by HRW, the links provided for the Director’s biography and article directed the recipient to malware hosted elsewhere. These spear-phishing attempts represent an evolution of Iranian actors based on their social engineering tactics and narrow targeting. Although the messages still had minor grammatical and stylistic errors that would be obvious to a native speaker, the actors demonstrated stronger English-language proficiency than past intrusion sets and a deeper investment in background research prior to the attempt. The actors appropriated a real identity that would be expected to professionally interact with the subject, then offered validation through links to their biography and social media, the former of which itself was malware as well. The bait documents contained a real article relevant to their interests and topic referenced, and the message attempted to address to how it aligned with their professional research or field of employment. The referenced documents sent were malware binaries posing as legitimate files using the common right-to-left filenames tactic in order to conceal the actual file extension. All of these techniques, while common pretexting mechanisms, are a refinement compared to a tendency amongst other groups to simply continually send different forms of generic malware or phishing, in the hopes that one would eventually be successful.
Techniques by tactic
No ATT&CK techniques are recorded for Sima in WhisperGraph.
Attributed infrastructure
None published. WhisperGraph carries no ATTRIBUTED_TO edge to Sima today — this states the absence of a published link, not that Sima has no infrastructure.
References
© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Related pages
Pivot from Sima 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.