Overview

overview

10

Static

static

10

Server2.exe

windows7-x64

10

Server2.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    1800s
  • max time network
    1801s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 16:43

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General

  • Target

    Server2.exe

  • Size

    37KB

  • MD5

    eb58ab61b4f6752137b47922b3fa3a21

  • SHA1

    df08cf24715c89aa84954587080b87d7ad33e56d

  • SHA256

    e74dfaa4c10425645b96135ef379febb8fd5a822708da089d22b98b9739cc844

  • SHA512

    bc1d4743b452c9a2cf6abc7b597b1b7a8c9993beb608f958b5425a2bb910e9e4b48c9c6d036ac32fba1474f0d0de7645313c20e71ea8684f866afdc1e2b438ed

  • SSDEEP

    384:z0BqiUD54NLHdayszTbUfblsWs7PrAF+rMRTyN/0L+EcoinblneHQM3epzX8NCnm:IhZdJszTbUh1szrM+rMRa8Nu+OWt

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

every-unnecessary.gl.at.ply.gg:41021

Mutex

6f3457932b8896a88f738e8383f18e0a

Attributes
  • reg_key

    6f3457932b8896a88f738e8383f18e0a

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server2.exe
    "C:\Users\Admin\AppData\Local\Temp\Server2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Users\Admin\AppData\Local\Temp\Windows.exe
      "C:\Users\Admin\AppData\Local\Temp\Windows.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows.exe" "Windows.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:872
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM Exsample.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\Windows.exe
    Filesize

    37KB

    MD5

    eb58ab61b4f6752137b47922b3fa3a21

    SHA1

    df08cf24715c89aa84954587080b87d7ad33e56d

    SHA256

    e74dfaa4c10425645b96135ef379febb8fd5a822708da089d22b98b9739cc844

    SHA512

    bc1d4743b452c9a2cf6abc7b597b1b7a8c9993beb608f958b5425a2bb910e9e4b48c9c6d036ac32fba1474f0d0de7645313c20e71ea8684f866afdc1e2b438ed

    Download Submit

  • memory/2324-0-0x00000000742D1000-0x00000000742D2000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2324-2-0x00000000742D0000-0x000000007487B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2324-1-0x00000000742D0000-0x000000007487B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2324-10-0x00000000742D0000-0x000000007487B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2736-11-0x00000000742D0000-0x000000007487B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2736-21-0x00000000742D0000-0x000000007487B000-memory.dmp

    Filesize

    5.7MB

    Download