Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 8 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 57 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:1596
    • C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_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:3240
      • 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
        • Suspicious use of WriteProcessMemory
        PID:3640
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\4e80168bcb2673f9fb284d339a1f36be_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3908
      • 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:3096
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2676
      • 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:3820
        • 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:2908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    794KB

    MD5

    4e80168bcb2673f9fb284d339a1f36be

    SHA1

    55d06c980caf3920a53846dfe106c2e83fe11fae

    SHA256

    5732ac20218d329557e17f8babfa74c8ecc5035b2c021d80ec42da75a8c50926

    SHA512

    d12bdb85500d096ba714c2b742ff63da99ff5a2aa69ae23d661c9ab4c9ca8beca458947c813a4c03127b22ef10b9bab5a07c17dcda623021ba4e3526d519e021

  • memory/1596-0-0x00000000005F0000-0x00000000005F1000-memory.dmp

    Filesize

    4KB

  • memory/1596-95-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/1596-94-0x00000000005F0000-0x00000000005F1000-memory.dmp

    Filesize

    4KB

  • memory/2676-16-0x0000000000510000-0x0000000000511000-memory.dmp

    Filesize

    4KB

  • memory/2908-103-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-112-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-127-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-124-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-121-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-118-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-115-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-97-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-109-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-89-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-93-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-92-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-91-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-90-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-106-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2908-100-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-7-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-9-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-11-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-74-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-5-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-12-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-2-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-1-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-4-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3240-13-0x00000000023C0000-0x00000000023C1000-memory.dmp

    Filesize

    4KB

  • memory/3820-96-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB