Resubmissions

11/08/2024, 16:27

240811-tx5jgs1hnc10

11/08/2024, 04:12

240811-espvxavbrl10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 04:12

General

  • Target
    88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe
  • Size 804KB
  • Sample240811-espvxavbrl
  • SHA256 e37abad92404bba98bc23c66ae860cdf6a99d417f1ec32e86b4b6ea7dd5d61f9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • HydraAntivirüs

C2
  • 127.0.0.1:1604

  • hydrahydra1907.zapto.org:1604

Mutex
  • DC_MUTEX-N3ACU05

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Bj3PNgEjTbH5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Extracted

Family
  • latentbot

C2
  • hydrahydra1907.zapto.org

Signatures

  • Darkcomet

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

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Modifies Windows Firewall 2 TTPs 2 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 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 14 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe"
    1⤵
    • Adds policy Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c netsh firewall set opmode disable
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2292
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall set opmode disable
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1992
    • C:\Users\Admin\AppData\Local\Temp\88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:508
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\88f2ea17a90d31b673d1a54e25477756_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2304
      • 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:1708
        • 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:4392
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:4036
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c netsh firewall set opmode disable
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2860
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall set opmode disable
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:4040
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • Modifies security service
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Windows security modification
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • System policy modification
          PID:644
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2796

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        msdcsc.exe

        • Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        • Size 804KB
        • SHA256 e37abad92404bba98bc23c66ae860cdf6a99d417f1ec32e86b4b6ea7dd5d61f9
        • MD5 SHA1 SHA512 SSDEEP

        memory/644-34-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-48-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-51-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-50-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-49-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-39-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-47-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-33-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-36-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-37-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-46-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-45-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-40-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-38-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-44-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-41-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-42-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/644-43-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-6-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-4-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-29-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-5-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-8-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2184-7-0x0000000000400000-0x00000000004CA000-memory.dmp

        memory/2796-35-0x0000000000D00000-0x0000000000D01000-memory.dmp

        memory/4036-11-0x0000000000480000-0x0000000000481000-memory.dmp