Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 21:57

General

  • Target

    2e8deb2e81589b0a6550efc54a14a6b8d8a374239dbaa5c51c4feafd7613bb96N.exe

  • Size

    80KB

  • MD5

    9ef47661f2f57c31f5bf89ac0356e1f0

  • SHA1

    38fa6e73917da5bfcae120faede519a310d3b48b

  • SHA256

    2e8deb2e81589b0a6550efc54a14a6b8d8a374239dbaa5c51c4feafd7613bb96

  • SHA512

    80b95261a5614b46203b745fba9bcd08f4395980aadd9594d5ec5f4f588066e14a8ef7646e5cda738ea9c000a64610b3d83667ba122a686f0c7f16337cbd6ebe

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWljzJxuOmb54vHTL6lm:diqCsp1zVmb5uHv6lm

Malware Config

Extracted

Family

blacknet

Botnet

HacKed

C2

https://lovegunny.net/

Mutex

BN[GnFquUJG-0548378]

Attributes
  • antivm

    false

  • elevate_uac

    true

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    cde2f914e4cce7f13b2c1cec7b6da970

  • startup

    false

  • usb_spread

    true

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
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e8deb2e81589b0a6550efc54a14a6b8d8a374239dbaa5c51c4feafd7613bb96N.exe
    "C:\Users\Admin\AppData\Local\Temp\2e8deb2e81589b0a6550efc54a14a6b8d8a374239dbaa5c51c4feafd7613bb96N.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security modification
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2716
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Windows security modification
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabE61D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    9ef47661f2f57c31f5bf89ac0356e1f0

    SHA1

    38fa6e73917da5bfcae120faede519a310d3b48b

    SHA256

    2e8deb2e81589b0a6550efc54a14a6b8d8a374239dbaa5c51c4feafd7613bb96

    SHA512

    80b95261a5614b46203b745fba9bcd08f4395980aadd9594d5ec5f4f588066e14a8ef7646e5cda738ea9c000a64610b3d83667ba122a686f0c7f16337cbd6ebe

  • C:\Users\Admin\AppData\Local\Temp\TarE64F.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\1KAWR8Z092383WXZ7R53.temp

    Filesize

    7KB

    MD5

    d46d7020239ccad4335cee7b3f2f5689

    SHA1

    c38c4f88ea59c5f89ce573adca6b6d3b6f2cbd62

    SHA256

    22ad45a2c37b38a0cd02600c33510c6c9cc57ab64fbb2709dd54dcd28c2993d7

    SHA512

    65c383ad6f4968669f229f6e198c800fa90fd07205d68b4f4492f22b40786214b6a8fe2e67a7f3ff4254e3e7c6932591b8117f70d157f5f5575a347aefa576fa

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    1acf74f9d8f58c1f0eaba59ba0f30261

    SHA1

    a81df86bd231e57fd43267c73b4e819438a847c6

    SHA256

    38130e3426a39c804a015ca5445bf14ec6279ca863d4da2172517fac62dc03a7

    SHA512

    360086f12b8549c66c26418514ec94c5f706b85a7dfec60c92aa5fe9dbe752f6ac3039a1384e8ccf9cc3383738bb8c36e64592dbf0190a553b304f64db0c18d9

  • memory/2492-55-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-64-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-3-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-46-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-48-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-49-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-1-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-0-0x000007FEF5EEE000-0x000007FEF5EEF000-memory.dmp

    Filesize

    4KB

  • memory/2492-56-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-2-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-58-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-60-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-59-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-62-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-61-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-63-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-42-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-65-0x000007FEF5C30000-0x000007FEF65CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2640-71-0x000000001B590000-0x000000001B872000-memory.dmp

    Filesize

    2.9MB

  • memory/2640-72-0x0000000001F70000-0x0000000001F78000-memory.dmp

    Filesize

    32KB

  • memory/2716-57-0x0000000002290000-0x0000000002298000-memory.dmp

    Filesize

    32KB

  • memory/2716-54-0x000000001B6A0000-0x000000001B982000-memory.dmp

    Filesize

    2.9MB