Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2024 02:44

General

  • Target

    3da8c86e51c566e6a12dc2bfb4fecf20N.exe

  • Size

    8.7MB

  • MD5

    3da8c86e51c566e6a12dc2bfb4fecf20

  • SHA1

    94e30bc0be5b356a2ff834b7b815dd947130827d

  • SHA256

    eace25bcb4fa221cd5ae40fe1ecafe9e2e3ab5439c5a80555a6b874f3a786abe

  • SHA512

    b322bcdf0376767564ee6e0c4b553a4ece2f07214a692c6cb498eb8002f337a5b6a8d724cca24f51e899c05a8acdb2fe2344806733ebca5efb283815c4e2ff88

  • SSDEEP

    196608:hCbGPZmVfjsCbGPZmVfjiCbGPZmVfjsCbGPZmVfj2CbGPZmVfjsCbGPZmVfjiCbY:0GmVNGmVrGmVNGmVnGmVNGmVrGmVNGm0

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 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 2 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • NTFS ADS 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 19 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe
    "C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe"
    1⤵
    • Adds Run key to start application
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4968
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c start C:\PROGRA~3\3DA8C8~1.TXT
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\3da8c86e51c566e6a12dc2bfb4fecf20N.exe.txt
        3⤵
          PID:5032
      • 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:4192
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3056
          • 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
            • Event Triggered Execution: Netsh Helper DLL
            PID:2768
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3784
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2936
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2572
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4068
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3492
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4720
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1668
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2572
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1572
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4816
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:224
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3476
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2528
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:452
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1516
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1696
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3492
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1760
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2980
    • C:\ProgramData\winmgr107.exe
      C:\ProgramData\winmgr107.exe
      1⤵
      • Executes dropped EXE
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      PID:4868

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\PROGRA~3\3da8c86e51c566e6a12dc2bfb4fecf20N.exe.txt

      Filesize

      992B

      MD5

      c8cf7247d4cfc99a7582a42d13df4c08

      SHA1

      317f5588af0b3b6374c436fb00084c522fd78a83

      SHA256

      78bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0

      SHA512

      5dd86b7ba388e5d2ad61b1c69589f42c36eec23a04b3cece0941133e0cf0e8a6f1f3aa2242d87af72db725b4b96032dadae72b3be98af3cfce5786ad8c08c357

    • C:\ProgramData\winmgr107.exe

      Filesize

      8.7MB

      MD5

      b665714344e88fd1809cbc64aecb0c48

      SHA1

      c193a96a0e82fc4b556e2005a0f538bcf16ee18a

      SHA256

      3955a8ef51bc84e5aa6b897d30598807597245c48ea6dec47c5ec248ad864885

      SHA512

      1c623c88cb3b54f614f58f76b8bfdd5816da2a189688c3af74383416eaa3f8cf90caad75ca86d068e0cf9b117b2518253f74df26ccc002222dc2c0c78a04c44d

    • C:\Users\Admin\AppData\Local\Temp\3da8c86e51c566e6a12dc2bfb4fecf20N.exe

      Filesize

      8.7MB

      MD5

      3da8c86e51c566e6a12dc2bfb4fecf20

      SHA1

      94e30bc0be5b356a2ff834b7b815dd947130827d

      SHA256

      eace25bcb4fa221cd5ae40fe1ecafe9e2e3ab5439c5a80555a6b874f3a786abe

      SHA512

      b322bcdf0376767564ee6e0c4b553a4ece2f07214a692c6cb498eb8002f337a5b6a8d724cca24f51e899c05a8acdb2fe2344806733ebca5efb283815c4e2ff88

    • memory/3056-15-0x0000000000F90000-0x0000000000F9C000-memory.dmp

      Filesize

      48KB