Analysis

  • max time kernel
    123s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 21:55

General

  • Target
    4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe
  • Size 8.7MB
  • Sample240605-1sssfsbb57
  • SHA256 4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • njrat

Version
  • 0.7d

Botnet
  • jjj

C2
  • youri.mooo.com:1605

Mutex
  • e936a10f968ac948cd351c9629dbd36d

Attributes
  • reg_key

    e936a10f968ac948cd351c9629dbd36d

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 23 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 1 IoCs
  • NTFS ADS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe
    "C:\Users\Admin\AppData\Local\Temp\4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe"
    1⤵
    • Adds Run key to start application
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c start C:\PROGRA~3\456507~1.TXT
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3984
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe.txt
        3⤵
          PID:1568
      • C:\ProgramData\winmgr107.exe
        C:\ProgramData\winmgr107.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • NTFS ADS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4344
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3148
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
            4⤵
            • Modifies Windows Firewall
            PID:3556
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1624
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3864
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:4308
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3120
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1056
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:2968
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1496
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3044
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3180
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:4400
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1624
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3864
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:4520
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:412
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:540
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:2968
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3596
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:2392
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:60
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:2984
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1776
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:1352
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
          3⤵
          • Creates scheduled task(s)
          PID:3916
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2260 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4264
      • C:\ProgramData\winmgr107.exe
        C:\ProgramData\winmgr107.exe
        1⤵
        • Executes dropped EXE
        • NTFS ADS
        • Suspicious behavior: EnumeratesProcesses
        PID:1796
      • C:\ProgramData\winmgr107.exe
        C:\ProgramData\winmgr107.exe
        1⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:4288

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe.txt

            • Path C:\PROGRA~3\4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe.txt
            • Size 992B
            • SHA256 78bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0
            • MD5 SHA1 SHA512

            winmgr107.exe

            • Path C:\ProgramData\winmgr107.exe
            • Size 7.2MB
            • SHA256 23db2678ffc926c94db719dedd21303453ee2fd92a6d4e59bdb681a654ecdc59
            • MD5 SHA1 SHA512 SSDEEP

            winmgr107.exe

            • Path C:\ProgramData\winmgr107.exe
            • Size 6.1MB
            • SHA256 22ad15b95413bbd0d422983683c80778de89929c92af81989367ecdf94cc285d
            • MD5 SHA1 SHA512 SSDEEP

            winmgr107.exe

            • Path C:\ProgramData\winmgr107.exe
            • Size 8.7MB
            • SHA256 3282cc8120286ee666acbcbd22cd4ff133da09a7ac58ef50d356fd76da4c6132
            • MD5 SHA1 SHA512 SSDEEP

            4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe

            • Path C:\Users\Admin\AppData\Local\Temp\4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67.exe
            • Size 8.7MB
            • SHA256 4565079cd64eda4060fad13b8c4b7d1aabd4b75472a4168762a180d94efd5e67
            • MD5 SHA1 SHA512 SSDEEP

            memory/3148-15-0x0000000000810000-0x000000000081C000-memory.dmp