Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
  • 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 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 28 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 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:2276
    • C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\98763ac353971441fa30d67cb10a5c1b_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • 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:1968
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\REGISTER.BAT" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2912
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 C:\Windows\System32\SkinCrafter2.dll
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2984
      • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
        "C:\Windows\system32\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:2072
        • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
          "C:\Windows\SysWOW64\MSDCSC\msdcsc.exe"
          4⤵
          • Modifies firewall policy service
          • Windows security bypass
          • 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:2236
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\REGISTER.BAT" "
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2684
            • C:\Windows\SysWOW64\regsvr32.exe
              regsvr32 C:\Windows\System32\SkinCrafter2.dll
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    365B

    MD5

    1a1fbcb52768d8aa5ca24b2ec4c597b5

    SHA1

    0df05cdac850709cece0b19d956de45f57cf0a6d

    SHA256

    1348640e021316be9ef666fd5cf9bcc2e266a5456e42769cfb224dca6c6f6ede

    SHA512

    5043ca8fc1a594d4e9696eb2a3233baabfbfbc5d88335ea3d7ea8461c30cd800e86ffa7fced9065ccb6950651b0b650e59d14c38e99d6cbbc695727515e67159

  • \Windows\SysWOW64\MSDCSC\msdcsc.exe

    Filesize

    304KB

    MD5

    98763ac353971441fa30d67cb10a5c1b

    SHA1

    94e781c77f374c406c1bb8a3ff9feb54f3078f16

    SHA256

    f72ffb67efe93075a9686032026933a10fd68e4730ee327a1e08c523015ede13

    SHA512

    ba1cd80158a9e8e1e96f3207022ffa39c21ed742c1cd2cb199067f5edc4372763a0fc0623aad7446e7e4016270d9d31b0a18e98aa8880246d2f1b8399db8b1bc

  • memory/1968-6-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1968-8-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-10-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-9-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-11-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-4-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-0-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-40-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1968-45-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2072-43-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2236-58-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-66-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-46-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-75-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-59-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-60-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-61-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-62-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-63-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-64-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-65-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-41-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-67-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-68-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-69-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-70-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-71-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-72-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-73-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2236-74-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2276-5-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB