Analysis

  • max time kernel
    129s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-10-2024 14:59

Errors

Reason
Machine shutdown

General

  • Target

    New Client.exe

  • Size

    65KB

  • MD5

    418617925234cf8529050924c905963c

  • SHA1

    d0ee8f492b22dbea6323c8ff0ae8f38b15e68f91

  • SHA256

    6db28dbae5f2b9f2efbb6419a337bbd3c9b98adfe6cafe7a7df946017bbb77f8

  • SHA512

    e81c7d29b57d26bf208f47d48a1119244b3bedaa213138eff2317791dd91b0b7eb77eb9b1f2cb1425a0668d351133acbbb91a9dc5005f22d0482f4b5505fa415

  • SSDEEP

    1536:efqK4Tm4BoN36t4QviFw1AjHkBnvbKfLteF3nLrB9z3nIaF9bHS9vM:efqK4C4BoN36t4QviFC8EBnefWl9zYaL

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

C2

127.0.0.1:36811

Mutex

svhost.exe

Attributes
  • reg_key

    svhost.exe

  • splitter

    |Ghost|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Client.exe
    "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:2684
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2872
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2716
      • C:\Windows\SysWOW64\shutdown.exe
        "C:\Windows\System32\shutdown.exe" /s /t 00
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3068
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {8BA1DE54-3E3B-4C85-8DEB-CE9CD747BC0A} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      C:\Users\Admin\AppData\Local\Temp\svhost.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1240
    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      C:\Users\Admin\AppData\Local\Temp\svhost.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1268
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x0
    1⤵
      PID:1492
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x540
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1744
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x1
      1⤵
        PID:2320

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\svhost.exe

        Filesize

        65KB

        MD5

        418617925234cf8529050924c905963c

        SHA1

        d0ee8f492b22dbea6323c8ff0ae8f38b15e68f91

        SHA256

        6db28dbae5f2b9f2efbb6419a337bbd3c9b98adfe6cafe7a7df946017bbb77f8

        SHA512

        e81c7d29b57d26bf208f47d48a1119244b3bedaa213138eff2317791dd91b0b7eb77eb9b1f2cb1425a0668d351133acbbb91a9dc5005f22d0482f4b5505fa415

      • memory/2380-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

        Filesize

        4KB

      • memory/2380-1-0x0000000000880000-0x0000000000896000-memory.dmp

        Filesize

        88KB

      • memory/2636-11-0x0000000000FD0000-0x0000000000FE6000-memory.dmp

        Filesize

        88KB

      • memory/2636-12-0x00000000744D0000-0x0000000074BBE000-memory.dmp

        Filesize

        6.9MB

      • memory/2636-13-0x00000000744D0000-0x0000000074BBE000-memory.dmp

        Filesize

        6.9MB

      • memory/2636-14-0x00000000744D0000-0x0000000074BBE000-memory.dmp

        Filesize

        6.9MB

      • memory/2636-15-0x00000000744D0000-0x0000000074BBE000-memory.dmp

        Filesize

        6.9MB

      • memory/2636-16-0x00000000003F0000-0x00000000003FE000-memory.dmp

        Filesize

        56KB

      • memory/2636-17-0x0000000000600000-0x000000000060A000-memory.dmp

        Filesize

        40KB

      • memory/2636-20-0x00000000744D0000-0x0000000074BBE000-memory.dmp

        Filesize

        6.9MB