Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250113-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    26-01-2025 19:38

General

  • Target

    NjRat Red Edition/NjRat 0.7D Red Edition.exe

  • Size

    9.3MB

  • MD5

    ce53474089a9756898a43d473638dccf

  • SHA1

    22cafe1b5e69c2a0ceea58642e722b53744df694

  • SHA256

    489db926ac0420a76ff682ceb90003a78dd2a02e42c254a2aae4fc234bb013e6

  • SHA512

    df437ce1ac935d78ba9a0495a568e63cf204117aaefd6397a00b67fbd1aaec876ba7150380e7ea4a52370f80bf506c76f347d0d01e9a50acb2676b8bd5f69701

  • SSDEEP

    98304:SodZrxZERMDoMu2EW5nnim//7uvwCt5tuo32vIoZp:SodjE6nnim//7uVtFw

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

MyBot

C2

127.0.0.1:6522

Mutex

60c28f2ec9c1d3d7f391e11534af955e

Attributes
  • reg_key

    60c28f2ec9c1d3d7f391e11534af955e

  • splitter

    Y262SUCZ4UJJ

Signatures

  • Njrat family
  • 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 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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies registry class 54 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NjRat Red Edition\NjRat 0.7D Red Edition.exe
    "C:\Users\Admin\AppData\Local\Temp\NjRat Red Edition\NjRat 0.7D Red Edition.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\ilasm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\ilasm.exe" /alignment=512 /QUIET "C:\Users\Admin\AppData\Local\Temp\stub.il" /output:"C:\Users\Admin\Desktop\Client.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2032
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x4e4 0x454
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2316
  • C:\Users\Admin\Desktop\Client.exe
    "C:\Users\Admin\Desktop\Client.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2940
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\Desktop\Client.exe" "Client.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:4736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\stub.il

    Filesize

    338KB

    MD5

    cb94a1f3d924e1e9f7737ea5516c3ceb

    SHA1

    0ab0c6dc2ac0def2ed64c710d81cfb23e8007356

    SHA256

    47296718f8989a56b09ebff98db9d9240f5bfd7886985bb64a8fdd17ba006ca5

    SHA512

    a93b2b801f053bfb12e56c94f43736a5bdc42a3575801d0070e1035981cc47dd54b43b3dd8268b3466bc864a2a58338bc0276b1982adb7b3a7a09c5c399485e0

  • C:\Users\Admin\Desktop\Client.exe

    Filesize

    30KB

    MD5

    3126366fdd73ab3758c41188ea1cf95d

    SHA1

    ec2fc677654538dbd4facc0991bd60fb402de44c

    SHA256

    59e7b5d53242700de8bd4e3270d92f42a5e1201d94e05eca57990f7a572722e8

    SHA512

    95bd434308f35b6782433a1680b2290921f1e0f6fa39ce52be1fd87631412399f7593bb42a6f75f8eed4e9319b398e59c8e82c3fe7265813d51a481b00a34dea

  • memory/2032-19-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-21-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-8-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-11-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-6-0x0000000074942000-0x0000000074943000-memory.dmp

    Filesize

    4KB

  • memory/3188-7-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-0-0x0000000074942000-0x0000000074943000-memory.dmp

    Filesize

    4KB

  • memory/3188-9-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-10-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-5-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-12-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-13-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-14-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-4-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-3-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-2-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3188-1-0x0000000074940000-0x0000000074EF1000-memory.dmp

    Filesize

    5.7MB