Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 1 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.

  • NTFS ADS 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 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⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c start C:\PROGRA~3\3DA8C8~1.TXT
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\3da8c86e51c566e6a12dc2bfb4fecf20N.exe.txt
        3⤵
          PID:540
      • 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:1216
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2644
          • 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:2540
        • 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:2740
        • 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:2924
        • 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:2568
        • 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:2252
        • 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:1664
        • 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:1564
        • 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:2700
        • 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:1852
        • 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:1428
        • 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:2904
        • 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:3048
        • 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:2040
        • 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:2864
        • 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:1788
        • 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:1268
        • 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:892
        • 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:1904
        • 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:1456
        • 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:380
        • 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:1636
        • 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:560
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {FF4344C4-87F3-49FC-AF9E-306938ECB93D} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
      1⤵
        PID:2404
        • C:\ProgramData\winmgr107.exe
          C:\ProgramData\winmgr107.exe
          2⤵
          • Executes dropped EXE
          • NTFS ADS
          • Suspicious behavior: EnumeratesProcesses
          PID:2476

      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

        ffa6c4e8a0091ee63585c2d9d97707c0

        SHA1

        ee3288d12dbccb706a4eb169e9819c54907e01b3

        SHA256

        2757c93ca244c1f9e3e15892171aea57c0b780a30a38005f8bd10a3fdc6132f5

        SHA512

        b229398fee52fe835e11aae3732617583dfe3ce83ca180850c76e8775366b0ef500bce5d05dab5b55543e34ef5668ebea7f1603a8d8124ccdc4fef92a14d14ba

      • memory/2436-9-0x0000000002660000-0x0000000002760000-memory.dmp

        Filesize

        1024KB

      • memory/2644-25-0x0000000000090000-0x000000000009C000-memory.dmp

        Filesize

        48KB

      • memory/2644-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2644-27-0x0000000000090000-0x000000000009C000-memory.dmp

        Filesize

        48KB

      • memory/2644-29-0x0000000000090000-0x000000000009C000-memory.dmp

        Filesize

        48KB

      • memory/2644-28-0x0000000000090000-0x000000000009C000-memory.dmp

        Filesize

        48KB