Analysis

  • max time kernel
    6s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 10:38

General

  • Target

    4ac48637b0c873c5a6747754cf380932a7a63658c562937dcc85d2a8db56bbb6N.exe

  • Size

    70KB

  • MD5

    8c3576e6a42711e4deb71285045a7820

  • SHA1

    fc83e5ce23b2e44feeeeca7a9f5b6a7467dc0372

  • SHA256

    4ac48637b0c873c5a6747754cf380932a7a63658c562937dcc85d2a8db56bbb6

  • SHA512

    e764647cf2839bfdbbf73b82f718a4d23933f29ac4288c8f012471a9d4566832d44637d3e693103995b31ed9e017d17493d5b7dfb7216e76ef98a4ab90b62275

  • SSDEEP

    1536:gFTnqpKxynVqGeifCSzTPb542HkLbvJfxa:gFTDGeifrvb59H+bvJ5a

Malware Config

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET payload 1 IoCs
  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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).

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ac48637b0c873c5a6747754cf380932a7a63658c562937dcc85d2a8db56bbb6N.exe
    "C:\Users\Admin\AppData\Local\Temp\4ac48637b0c873c5a6747754cf380932a7a63658c562937dcc85d2a8db56bbb6N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      PID:3980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe

    Filesize

    70KB

    MD5

    8c3576e6a42711e4deb71285045a7820

    SHA1

    fc83e5ce23b2e44feeeeca7a9f5b6a7467dc0372

    SHA256

    4ac48637b0c873c5a6747754cf380932a7a63658c562937dcc85d2a8db56bbb6

    SHA512

    e764647cf2839bfdbbf73b82f718a4d23933f29ac4288c8f012471a9d4566832d44637d3e693103995b31ed9e017d17493d5b7dfb7216e76ef98a4ab90b62275

  • memory/904-8-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-3-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-10-0x000000001F520000-0x000000001F582000-memory.dmp

    Filesize

    392KB

  • memory/904-11-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-5-0x000000001C210000-0x000000001C2AC000-memory.dmp

    Filesize

    624KB

  • memory/904-6-0x000000001B650000-0x000000001B658000-memory.dmp

    Filesize

    32KB

  • memory/904-7-0x000000001C370000-0x000000001C3BC000-memory.dmp

    Filesize

    304KB

  • memory/904-35-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-0-0x00007FF803275000-0x00007FF803276000-memory.dmp

    Filesize

    4KB

  • memory/904-2-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-4-0x000000001BC50000-0x000000001C11E000-memory.dmp

    Filesize

    4.8MB

  • memory/904-12-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-13-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-1-0x000000001B6D0000-0x000000001B776000-memory.dmp

    Filesize

    664KB

  • memory/904-28-0x00007FF803275000-0x00007FF803276000-memory.dmp

    Filesize

    4KB

  • memory/904-29-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-33-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/904-9-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-31-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-32-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-30-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-36-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-37-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-38-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-39-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-40-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-42-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-41-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-43-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-44-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-45-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-46-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-47-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-48-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-49-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB

  • memory/3980-50-0x00007FF802FC0000-0x00007FF803961000-memory.dmp

    Filesize

    9.6MB