Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-10-2024 19:01

General

  • Target

    4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe

  • Size

    794KB

  • MD5

    4e80168bcb2673f9fb284d339a1f36be

  • SHA1

    55d06c980caf3920a53846dfe106c2e83fe11fae

  • SHA256

    5732ac20218d329557e17f8babfa74c8ecc5035b2c021d80ec42da75a8c50926

  • SHA512

    d12bdb85500d096ba714c2b742ff63da99ff5a2aa69ae23d661c9ab4c9ca8beca458947c813a4c03127b22ef10b9bab5a07c17dcda623021ba4e3526d519e021

  • SSDEEP

    12288:7l6RkwVNVSNW9dDRySO94a29sL1Ni8r1NTTbsTohYWEgRW1ah2M:7wkwVmNW9lBNs5Ni8rXTPsE3LIahR

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

bomido.no-ip.biz:5000

Mutex

DC_MUTEX-QJ5HZQG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    9GXWxSfCCvaS

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 7 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2740
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2700
      • 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
        PID:2788
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2736
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2648
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
          4⤵
          • 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
          PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    794KB

    MD5

    4e80168bcb2673f9fb284d339a1f36be

    SHA1

    55d06c980caf3920a53846dfe106c2e83fe11fae

    SHA256

    5732ac20218d329557e17f8babfa74c8ecc5035b2c021d80ec42da75a8c50926

    SHA512

    d12bdb85500d096ba714c2b742ff63da99ff5a2aa69ae23d661c9ab4c9ca8beca458947c813a4c03127b22ef10b9bab5a07c17dcda623021ba4e3526d519e021

  • memory/2512-0-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2736-32-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2736-54-0x00000000001E0000-0x00000000001E1000-memory.dmp

    Filesize

    4KB

  • memory/2880-20-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-11-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2880-29-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2880-28-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-18-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-27-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-26-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-14-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-5-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-3-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-1-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2880-63-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB