THREATOPS Actor Dossier
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CURIUM

G10120 reports
aliases · CURIUM · Crimson Sandstorm · TA456 · Tortoise Shell · Yellow Liderc
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Reports
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Techniques
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Tactics
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Countries
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Hunt coverage
5
Aliases

Analyst assessment — key judgments

  • No recorded activity: 0 report(s) in last 30d vs 0 prior (+0%).
  • Assessment confidence: n/a.

Activity & trend

InactiveLast 30d: 0 vs 0 prior (+0%)
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Rpts/wk
Reporting timeline · 12 months

Overview

Analyst triage
Intelligence summary

CURIUM is an Iranian threat group, first reported in September 2019 and active since at least July 2018, targeting IT service providers in the Middle East.(Citation: Symantec Tortoiseshell 2019) CURIUM has since invested in building relationships with potential targets via social media over a period of months to establish trust and confidence before sending malware. Security researchers note CURIUM has demonstrated great patience and persistence by chatting with potential targets daily and sending benign files to help lower their security consciousness.(Citation: Microsoft Iranian Threat Actor Trends November 2021)

Top co-occurring indicators
    Aliases & naming
      Targeting · countries
        Targeting · named victims

          ATT&CK technique matrix

          Coverage vs hunt library:
          Hunt-coverage gaps — prioritized

            Top techniques by observation
            • No ATT&CK techniques associated yet.

            Threat catalogue · engineering roadmap0

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              Infrastructure

              IOC type mix
              Tooling / malware families
                Tracked infrastructure

                Relationships

                Related actors (behavioral cluster)
                  Attributed malware
                  Campaigns
                  No behavioral cluster, attributed malware, or campaigns recorded for this actor yet.

                  Activity

                  30-day mention timeline
                  Recent reporting
                  TitleSourceSeverityCollected