Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 01:41

General

  • Target

    98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe

  • Size

    304KB

  • MD5

    98763ac353971441fa30d67cb10a5c1b

  • SHA1

    94e781c77f374c406c1bb8a3ff9feb54f3078f16

  • SHA256

    f72ffb67efe93075a9686032026933a10fd68e4730ee327a1e08c523015ede13

  • SHA512

    ba1cd80158a9e8e1e96f3207022ffa39c21ed742c1cd2cb199067f5edc4372763a0fc0623aad7446e7e4016270d9d31b0a18e98aa8880246d2f1b8399db8b1bc

  • SSDEEP

    6144:6dLGw3F69JYdLdSM9mMeqOhdwmetwsfRuwOT/GFvxnH5:YGw+moUmq+dFetwspuwCGf5

Malware Config

Extracted

Family

darkcomet

Botnet

Zhinola

C2

taziyane.no-ip.org:1604

Mutex

DC_MUTEX-31MMF7V

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    kn8aQWvvLTgX

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • 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
  • Checks computer location settings 2 TTPs 2 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 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 27 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\REGISTER.BAT" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 C:\Windows\System32\SkinCrafter2.dll
          4⤵
          • System Location Discovery: System Language Discovery
          PID:684
      • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
        "C:\Windows\system32\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2560
        • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
          "C:\Windows\SysWOW64\MSDCSC\msdcsc.exe"
          4⤵
          • Modifies firewall policy service
          • Windows security bypass
          • Checks computer location settings
          • Executes dropped EXE
          • Windows security modification
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4576
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\REGISTER.BAT" "
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1696
            • C:\Windows\SysWOW64\regsvr32.exe
              regsvr32 C:\Windows\System32\SkinCrafter2.dll
              6⤵
              • System Location Discovery: System Language Discovery
              PID:556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\REGISTER.BAT

    Filesize

    365B

    MD5

    1a1fbcb52768d8aa5ca24b2ec4c597b5

    SHA1

    0df05cdac850709cece0b19d956de45f57cf0a6d

    SHA256

    1348640e021316be9ef666fd5cf9bcc2e266a5456e42769cfb224dca6c6f6ede

    SHA512

    5043ca8fc1a594d4e9696eb2a3233baabfbfbc5d88335ea3d7ea8461c30cd800e86ffa7fced9065ccb6950651b0b650e59d14c38e99d6cbbc695727515e67159

  • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe

    Filesize

    304KB

    MD5

    98763ac353971441fa30d67cb10a5c1b

    SHA1

    94e781c77f374c406c1bb8a3ff9feb54f3078f16

    SHA256

    f72ffb67efe93075a9686032026933a10fd68e4730ee327a1e08c523015ede13

    SHA512

    ba1cd80158a9e8e1e96f3207022ffa39c21ed742c1cd2cb199067f5edc4372763a0fc0623aad7446e7e4016270d9d31b0a18e98aa8880246d2f1b8399db8b1bc

  • memory/2560-26-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/3216-3-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/4204-35-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-2-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-7-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-5-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-4-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-24-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-0-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4204-6-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-39-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-43-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-34-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-37-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-38-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-28-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-40-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-41-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-42-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-33-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-44-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-45-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-46-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-47-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-48-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-49-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-50-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-51-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4576-52-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB