Analysis

  • max time kernel
    150s
  • max time network
    126s
  • 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 18:37

General

  • Target

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe

  • Size

    80KB

  • MD5

    e95b79a1f19abb4fb5144412ed01e810

  • SHA1

    8bb1a184264c8b22929c4b6ec7439b28072c0d5b

  • SHA256

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351d

  • SHA512

    3272f74164c4188c275b5276f3ba1430384e12003a12558609e857ad28a675b70d4553bfdce8b3956a74582e788e040dfbbd899c95c81f6d01afd5ed623faf26

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWfjzJxuOmb54vHTL6lm:diqCsp7zVmb5uHv6lm

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.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe
    "C:\Users\Admin\AppData\Local\Temp\a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3456
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1640
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    52afa702b34ab802e2ecd71d9539c829

    SHA1

    6a6f18158c82910e158d7e27972486c6e4dc5c93

    SHA256

    992fefff5236c174b6dd74b76a2c5c0d33470bec786ee4b30f5577aea27b8025

    SHA512

    5e42fead63b34fb62e4173e83e11110543583aece41f736c007d8512e8f23b6713140c9233bf99f9b9d1c3302a2f526bd4d33ed1ce1f777c9e0d9dea25e37639

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

    Filesize

    80KB

    MD5

    e95b79a1f19abb4fb5144412ed01e810

    SHA1

    8bb1a184264c8b22929c4b6ec7439b28072c0d5b

    SHA256

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351d

    SHA512

    3272f74164c4188c275b5276f3ba1430384e12003a12558609e857ad28a675b70d4553bfdce8b3956a74582e788e040dfbbd899c95c81f6d01afd5ed623faf26

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_porxa1lg.uaw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1640-54-0x00007FF855000000-0x00007FF855AC1000-memory.dmp

    Filesize

    10.8MB

  • memory/1640-44-0x00000200FFAB0000-0x00000200FFAD2000-memory.dmp

    Filesize

    136KB

  • memory/1640-34-0x00007FF855000000-0x00007FF855AC1000-memory.dmp

    Filesize

    10.8MB

  • memory/1640-33-0x00007FF855000000-0x00007FF855AC1000-memory.dmp

    Filesize

    10.8MB

  • memory/1640-29-0x00007FF855003000-0x00007FF855005000-memory.dmp

    Filesize

    8KB

  • memory/3456-28-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-5-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-13-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-14-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-15-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-25-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-9-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-26-0x00007FF858EE5000-0x00007FF858EE6000-memory.dmp

    Filesize

    4KB

  • memory/3456-27-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-0-0x00007FF858EE5000-0x00007FF858EE6000-memory.dmp

    Filesize

    4KB

  • memory/3456-8-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-7-0x000000001BFB0000-0x000000001BFFC000-memory.dmp

    Filesize

    304KB

  • memory/3456-6-0x0000000000BD0000-0x0000000000BD8000-memory.dmp

    Filesize

    32KB

  • memory/3456-10-0x000000001EE30000-0x000000001EE92000-memory.dmp

    Filesize

    392KB

  • memory/3456-1-0x0000000000DF0000-0x0000000000E96000-memory.dmp

    Filesize

    664KB

  • memory/3456-48-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-2-0x000000001B930000-0x000000001BDFE000-memory.dmp

    Filesize

    4.8MB

  • memory/3456-50-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-3-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/3456-45-0x000000001FE00000-0x000000001FF00000-memory.dmp

    Filesize

    1024KB

  • memory/3456-4-0x000000001BEA0000-0x000000001BF3C000-memory.dmp

    Filesize

    624KB

  • memory/5016-46-0x00000000019A0000-0x00000000019B0000-memory.dmp

    Filesize

    64KB

  • memory/5016-51-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB

  • memory/5016-47-0x00007FF858EE5000-0x00007FF858EE6000-memory.dmp

    Filesize

    4KB

  • memory/5016-68-0x00007FF858EE5000-0x00007FF858EE6000-memory.dmp

    Filesize

    4KB

  • memory/5016-67-0x00000000019A0000-0x00000000019B0000-memory.dmp

    Filesize

    64KB

  • memory/5016-69-0x00007FF858C30000-0x00007FF8595D1000-memory.dmp

    Filesize

    9.6MB