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Overview

overview

10

Static

static

3

JaffaCakes...f9.exe

windows7-x64

10

JaffaCakes...f9.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_a31d59e190008f0a3a2abc334c6ce9f9

  • Size

    828KB

  • Sample

    250205-yjqwdsznct

  • MD5

    a31d59e190008f0a3a2abc334c6ce9f9

  • SHA1

    37456e8559512dff814b09f9ca3710517148f8f2

  • SHA256

    27e663cc439cf3ff7b2f66260a851c8cf0ea5292d259bd1c22171685017dbd4c

  • SHA512

    47bdeb93ec8e8b659d3279c43524b4410bb91fc8b96e6f3a8044f189d91269b9e0d3fa236063f2fc05c12cf73777079f6e84f4b935e8122c095e85e525b49d75

  • SSDEEP

    24576:Gqv5LEymyQvPvS8cZTouk1wRhZ2Bq8aChQ:GqBL1AXvA0B1lw8/hQ

Score
10/10
darkcometbootkitdiscoverypersistencerattrojan

Malware Config

Targets

    • Target

      JaffaCakes118_a31d59e190008f0a3a2abc334c6ce9f9

    • Size

      828KB

    • MD5

      a31d59e190008f0a3a2abc334c6ce9f9

    • SHA1

      37456e8559512dff814b09f9ca3710517148f8f2

    • SHA256

      27e663cc439cf3ff7b2f66260a851c8cf0ea5292d259bd1c22171685017dbd4c

    • SHA512

      47bdeb93ec8e8b659d3279c43524b4410bb91fc8b96e6f3a8044f189d91269b9e0d3fa236063f2fc05c12cf73777079f6e84f4b935e8122c095e85e525b49d75

    • SSDEEP

      24576:Gqv5LEymyQvPvS8cZTouk1wRhZ2Bq8aChQ:GqBL1AXvA0B1lw8/hQ

    Score
    10/10
    darkcometbootkitdiscoverypersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks