THREATOPS Actor Dossier
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AppleJeus

G10490 reports
aliases · AppleJeus · Gleaming Pisces · Citrine Sleet · UNC1720 · UNC4736
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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

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Rpts/wk
Reporting timeline · 12 months

Overview

Analyst triage
Intelligence summary

AppleJeus is a North Korean state-sponsored threat group attributed to the Reconnaissance General Bureau. Associated with the broader Lazarus Group umbrella of actors, AppleJeus has been active since at least 2018 and is closely aligned in resources with TEMP.hermit, another DPRK-affiliated group under the same umbrella.(Citation: dtex DPRK 2025 structure ITworkers) The group’s primary mission is to generate and launder revenue to provide financial support to the government. AppleJeus primarily targets the cryptocurrency industry and is most notably responsible for the 3CX Supply Chain Attack.(Citation: Mandiant 3cx UNC4736 2023) The group traditionally deploys malicious cryptocurrency software in combination with Phishing. From these compromised environments, it selectively deploys additional backdoors to enable extended operations against high-value financial targets.(Citation: Mandiant DPRK Groups 2023)(Citation: JPCert Blog Laz Subgroups 2025)

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
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            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
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                  Activity

                  30-day mention timeline
                  Recent reporting
                  TitleSourceSeverityCollected