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Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 14:07

General

  • Target

    b7eea6971453584c9c0caec2f044108c_JaffaCakes118.exe

  • Size

    757KB

  • MD5

    b7eea6971453584c9c0caec2f044108c

  • SHA1

    28a9bd2260f89a90de8a2ed49c492f967f130c0c

  • SHA256

    28aa6312df9de132a6953f1c1ccd654e7ec6935a739cd9a35e9699b7c9740a10

  • SHA512

    9e886116eacd9e6766c192a7ef0e91d9fb67a202ba8d0552f0495657158db310dade6355d8e53ffa97708fd66da2312b16fd6ee8d5c6f8708b490737763ae331

  • SSDEEP

    12288:h9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKcNY:XAQ6Zx9cxTmOrucTIEFSpOGpNY

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7eea6971453584c9c0caec2f044108c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b7eea6971453584c9c0caec2f044108c_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4792
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4636
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 152
        3⤵
        • Program crash
        PID:2068
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Checks BIOS information in registry
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:5036
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4636 -ip 4636
    1⤵
      PID:1624

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/4636-2-0x0000000000930000-0x0000000000931000-memory.dmp

      Filesize

      4KB

    • memory/4792-0-0x0000000002330000-0x0000000002331000-memory.dmp

      Filesize

      4KB

    • memory/4792-9-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-6-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-7-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-8-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-11-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-10-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-13-0x0000000002A40000-0x0000000002A41000-memory.dmp

      Filesize

      4KB

    • memory/5036-12-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/5036-14-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB