Analysis

  • max time kernel
    120s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-10-2024 03:30

General

  • Target

    1180538d564ed7fab7e05e8a4c55f314e930d962ec4b7bb8b54dbb82bf4f04f4N.exe

  • Size

    80KB

  • MD5

    59a4d8a653f691725e82e3e9480cab20

  • SHA1

    e88607925bf5f78b0f4a16e123662d61d7778496

  • SHA256

    1180538d564ed7fab7e05e8a4c55f314e930d962ec4b7bb8b54dbb82bf4f04f4

  • SHA512

    40a238d5a794fa4b03aceb0420d25f501c5ed14f02cd969048f92b6543aacf9c5e8457f940084233cc4f40d9921ccb5702aa7bef656e685359d6901abdfc4a30

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWOjzJxuOmb54vHTL6lm:diqCspIzVmb5uHv6lm

Malware Config

Signatures

  • BlackNET

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

  • BlackNET payload 1 IoCs
  • Blacknet family
  • 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\1180538d564ed7fab7e05e8a4c55f314e930d962ec4b7bb8b54dbb82bf4f04f4N.exe
    "C:\Users\Admin\AppData\Local\Temp\1180538d564ed7fab7e05e8a4c55f314e930d962ec4b7bb8b54dbb82bf4f04f4N.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:3840
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • 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:4760
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4908

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

    6d3e9c29fe44e90aae6ed30ccf799ca8

    SHA1

    c7974ef72264bbdf13a2793ccf1aed11bc565dce

    SHA256

    2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

    SHA512

    60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

    Filesize

    80KB

    MD5

    59a4d8a653f691725e82e3e9480cab20

    SHA1

    e88607925bf5f78b0f4a16e123662d61d7778496

    SHA256

    1180538d564ed7fab7e05e8a4c55f314e930d962ec4b7bb8b54dbb82bf4f04f4

    SHA512

    40a238d5a794fa4b03aceb0420d25f501c5ed14f02cd969048f92b6543aacf9c5e8457f940084233cc4f40d9921ccb5702aa7bef656e685359d6901abdfc4a30

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fdwbwv0u.3wt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2912-51-0x00007FFD96D50000-0x00007FFD97811000-memory.dmp

    Filesize

    10.8MB

  • memory/2912-45-0x00007FFD96D50000-0x00007FFD97811000-memory.dmp

    Filesize

    10.8MB

  • memory/2912-44-0x00007FFD96D50000-0x00007FFD97811000-memory.dmp

    Filesize

    10.8MB

  • memory/2912-31-0x0000020432880000-0x00000204328A2000-memory.dmp

    Filesize

    136KB

  • memory/2912-19-0x00007FFD96D53000-0x00007FFD96D55000-memory.dmp

    Filesize

    8KB

  • memory/3840-8-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-42-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-11-0x00007FFD9A925000-0x00007FFD9A926000-memory.dmp

    Filesize

    4KB

  • memory/3840-12-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-13-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-16-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-17-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-9-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-0-0x00007FFD9A925000-0x00007FFD9A926000-memory.dmp

    Filesize

    4KB

  • memory/3840-7-0x000000001C5C0000-0x000000001C60C000-memory.dmp

    Filesize

    304KB

  • memory/3840-6-0x000000001B880000-0x000000001B888000-memory.dmp

    Filesize

    32KB

  • memory/3840-10-0x000000001D200000-0x000000001D262000-memory.dmp

    Filesize

    392KB

  • memory/3840-43-0x00000000012E9000-0x00000000012EF000-memory.dmp

    Filesize

    24KB

  • memory/3840-5-0x000000001C460000-0x000000001C4FC000-memory.dmp

    Filesize

    624KB

  • memory/3840-1-0x000000001B8D0000-0x000000001B976000-memory.dmp

    Filesize

    664KB

  • memory/3840-2-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3840-4-0x000000001BE50000-0x000000001C31E000-memory.dmp

    Filesize

    4.8MB

  • memory/3840-3-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/4760-48-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/4760-46-0x0000000001210000-0x0000000001220000-memory.dmp

    Filesize

    64KB

  • memory/4760-47-0x00007FFD9A925000-0x00007FFD9A926000-memory.dmp

    Filesize

    4KB

  • memory/4760-64-0x0000000001210000-0x0000000001220000-memory.dmp

    Filesize

    64KB

  • memory/4760-65-0x00007FFD9A925000-0x00007FFD9A926000-memory.dmp

    Filesize

    4KB

  • memory/4760-66-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB