Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-09-2024 21:37

General

  • Target

    c34be82d4d26914808ef38f10338c6dc66da3179e70319a2362c387f770b288fN.exe

  • Size

    64KB

  • MD5

    ab351ab86e32f9936c7943a397eba860

  • SHA1

    b11324109a190f06c068cc36d8972abd6f96fbf6

  • SHA256

    c34be82d4d26914808ef38f10338c6dc66da3179e70319a2362c387f770b288f

  • SHA512

    a8934e43aa1ae58ba07885419904cfada12b5ef99093b74d775c8993f5c32a8c413ea1af88ebf8e983c10e1ebd7daf2acba45d0e917365415f64de15e13055dc

  • SSDEEP

    768:t+w1rw9MVg/KgUA1M69FSXOfsJ8LpG8K78AQdc/LPNX2iFJNgl:x/td4toX+sJqA8K78AiKzNrJNgl

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Cleno

C2

arabchat24.servemp3.com:3461

Mutex

3a89e7585d94d684ad793985a8f8b48e

Attributes
  • reg_key

    3a89e7585d94d684ad793985a8f8b48e

  • 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 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).

  • 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.

  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c34be82d4d26914808ef38f10338c6dc66da3179e70319a2362c387f770b288fN.exe
    "C:\Users\Admin\AppData\Local\Temp\c34be82d4d26914808ef38f10338c6dc66da3179e70319a2362c387f770b288fN.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3992
    • C:\Users\Admin\AppData\Roaming\Notepad.exe
      "C:\Users\Admin\AppData\Roaming\Notepad.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Notepad.exe" "Notepad.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:3960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Notepad.exe

    Filesize

    64KB

    MD5

    ab351ab86e32f9936c7943a397eba860

    SHA1

    b11324109a190f06c068cc36d8972abd6f96fbf6

    SHA256

    c34be82d4d26914808ef38f10338c6dc66da3179e70319a2362c387f770b288f

    SHA512

    a8934e43aa1ae58ba07885419904cfada12b5ef99093b74d775c8993f5c32a8c413ea1af88ebf8e983c10e1ebd7daf2acba45d0e917365415f64de15e13055dc

  • memory/2748-16-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB

  • memory/2748-18-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB

  • memory/2748-20-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB

  • memory/2748-21-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB

  • memory/3992-0-0x00007FFE45553000-0x00007FFE45555000-memory.dmp

    Filesize

    8KB

  • memory/3992-1-0x0000000000A10000-0x0000000000A24000-memory.dmp

    Filesize

    80KB

  • memory/3992-2-0x00000000011C0000-0x00000000011CC000-memory.dmp

    Filesize

    48KB

  • memory/3992-3-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB

  • memory/3992-17-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

    Filesize

    10.8MB