Analysis

  • max time kernel
    29s
  • max time network
    30s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-12-2024 09:46

General

  • Target

    BootstrapperV1.23.exe

  • Size

    800KB

  • MD5

    02c70d9d6696950c198db93b7f6a835e

  • SHA1

    30231a467a49cc37768eea0f55f4bea1cbfb48e2

  • SHA256

    8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3

  • SHA512

    431d9b9918553bff4f4a5bc2a5e7b7015f8ad0e2d390bb4d5264d08983372424156524ef5587b24b67d1226856fc630aaca08edc8113097e0094501b4f08efeb

  • SSDEEP

    12288:qhd8cjaLXVh84wEFkW1mocaBj6WtiRPpptHxQ0z:2ycjar84w5W4ocaBj6y2tHDz

Score
7/10

Malware Config

Signatures

  • Unexpected DNS network traffic destination 7 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: LoadsDriver 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.23.exe
    "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.23.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd" /c ipconfig /all
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\system32\ipconfig.exe
        ipconfig /all
        3⤵
        • Gathers network information
        PID:2164
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4600
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3552
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
    1⤵
      PID:4552

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

      Filesize

      10KB

      MD5

      ad7a569bafd3a938fe348f531b8ef332

      SHA1

      7fdd2f52d07640047bb62e0f3d3c946ddd85c227

      SHA256

      f0e06109256d5577e9f62db2c398974c5002bd6d08892f20517760601b705309

      SHA512

      b762bae338690082d817b3008144926498a1bd2d6d99be33e513c43515808f9a3184bd10254e5c6a1ff90a9211653f066050249030ad9fe0460ec88335b3d423

    • memory/2644-0-0x00007FF9D6B73000-0x00007FF9D6B75000-memory.dmp

      Filesize

      8KB

    • memory/2644-1-0x0000023863C60000-0x0000023863D2E000-memory.dmp

      Filesize

      824KB

    • memory/2644-2-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

      Filesize

      10.8MB

    • memory/2644-10-0x00007FF9D6B73000-0x00007FF9D6B75000-memory.dmp

      Filesize

      8KB

    • memory/2644-12-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

      Filesize

      10.8MB