Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2024 14:59

General

  • Target

    7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    7a26ef681c7f11d26f84dfc5274e5d7e

  • SHA1

    16762f2fa1ebb219afeb73e198f7fd0da8d9245c

  • SHA256

    af645484c291b49d6414fffdae61a9f7383e16785e23adcb9ef7a8d04397207b

  • SHA512

    93f933a3a16359d4dfeb8ed4bb19681df1a1fd4367bce1150de9da6e3277a2cf239fd0c50885243d0cd97fd194b12f00b2791792fa7ff3b4672bf5e3dc26a7c2

  • SSDEEP

    24576:iRmJkcoQricOIQxiZY1iafEm2cWcOrcEMEsDhec44t+Ry34WyuHOiW6ZD:3JZoQrbTFZY1iafEmycOYEMbec4E12JS

Malware Config

Extracted

Family

darkcomet

Botnet

hakjjj

C2

pess-12.zapto.org:1604

Mutex

DC_MUTEX-50JRU14

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    GjGL0jkir9x8

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4672
    • C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2092
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\7a26ef681c7f11d26f84dfc5274e5d7e_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2004
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4148
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2892
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:3016
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3648
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
          4⤵
          • Modifies firewall policy service
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1740
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    1.5MB

    MD5

    7a26ef681c7f11d26f84dfc5274e5d7e

    SHA1

    16762f2fa1ebb219afeb73e198f7fd0da8d9245c

    SHA256

    af645484c291b49d6414fffdae61a9f7383e16785e23adcb9ef7a8d04397207b

    SHA512

    93f933a3a16359d4dfeb8ed4bb19681df1a1fd4367bce1150de9da6e3277a2cf239fd0c50885243d0cd97fd194b12f00b2791792fa7ff3b4672bf5e3dc26a7c2

  • memory/1452-71-0x00000000012A0000-0x00000000012A1000-memory.dmp

    Filesize

    4KB

  • memory/1740-83-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-86-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-79-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-91-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-80-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-69-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-72-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-81-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-90-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-70-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-89-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-78-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-88-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-87-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-73-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-82-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-85-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1740-84-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/3016-7-0x0000000000A70000-0x0000000000A71000-memory.dmp

    Filesize

    4KB

  • memory/4200-0-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/4200-3-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/4200-2-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/4200-6-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/4200-76-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/4200-1-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB