Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-03-2024 05:59

General

  • Target

    b6ae15ab999b2dd5398dd62de1a92179.exe

  • Size

    33KB

  • MD5

    b6ae15ab999b2dd5398dd62de1a92179

  • SHA1

    27de86591832a8688660372bf9ae930560b0ea4c

  • SHA256

    579ae9a57dd87fe89a5ac05f9a2aa235ba0ca7886d63a485d68adc17a2bf2357

  • SHA512

    8b4d8b3264f71d70564b842f5c75967643149b12907f9a2e3a1f8e631d0d92f47059bfd74157545bdb6f4ad0c2ce96cb5d0c70610f61dcf86f5a1b914a483811

  • SSDEEP

    768:AHdF/wBIOnkujXAIUGpKzERLziyS1WTJy7s:A9h8tjXfQzs3uWSs

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Obfuscated with Agile.Net obfuscator 2 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6ae15ab999b2dd5398dd62de1a92179.exe
    "C:\Users\Admin\AppData\Local\Temp\b6ae15ab999b2dd5398dd62de1a92179.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe
        "C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4400
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe" "Host Process for Windows Tasks.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    28KB

    MD5

    38bc37837b8ac3034f5d1ed53c49ebc6

    SHA1

    df2e9e9c5105406934e9a0ae916cd7f14c1b6081

    SHA256

    a03fd81c4580e67525fcfad3642eb7e511069a91d70ba10ccd667561f663324c

    SHA512

    b093211c777ea22f0a829b0abe75429e1fa08030bf99d3ccbc454648b3bf9d8d73b7a2eb04b5c7b562c6bfc123f888fa49eddd0065e61e97076ea7232e57d61f

  • memory/2992-0-0x0000000000060000-0x000000000006E000-memory.dmp

    Filesize

    56KB

  • memory/2992-1-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/2992-2-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

    Filesize

    64KB

  • memory/2992-3-0x0000000005080000-0x0000000005624000-memory.dmp

    Filesize

    5.6MB

  • memory/2992-14-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/4400-28-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB

  • memory/4400-35-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-39-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-38-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-37-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-29-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-30-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB

  • memory/4400-32-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB

  • memory/4400-33-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-34-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/4400-36-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

    Filesize

    64KB

  • memory/5088-17-0x0000000001750000-0x0000000001760000-memory.dmp

    Filesize

    64KB

  • memory/5088-15-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB

  • memory/5088-27-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB

  • memory/5088-18-0x00000000707B0000-0x0000000070D61000-memory.dmp

    Filesize

    5.7MB