Analysis

  • max time kernel
    130s
  • max time network
    124s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241023-en
  • resource tags

    arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-11-2024 18:30

General

  • Target

    Bootstrapper.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 3 IoCs

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

  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd" /c ipconfig /all
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3472
      • C:\Windows\system32\ipconfig.exe
        ipconfig /all
        3⤵
        • Gathers network information
        PID:3440
    • 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:3420
      • 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:900
  • C:\Windows\system32\BackgroundTransferHost.exe
    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
    1⤵
    • Modifies registry class
    PID:3472
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3104
    • C:\Windows\system32\SearchIndexer.exe
      C:\Windows\system32\SearchIndexer.exe /Embedding
      1⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5072
      • C:\Windows\System32\SearchProtocolHost.exe
        "C:\Windows\System32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe1_ Global\UsGthrCtrlFltPipeMssGthrPipe1 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
        2⤵
        • Modifies data under HKEY_USERS
        PID:4764
      • C:\Windows\system32\SearchFilterHost.exe
        "C:\Windows\system32\SearchFilterHost.exe" 828 2604 2600 812 {0E5DCEC5-7795-4E38-9621-94DFD9F9A421}
        2⤵
        • Modifies data under HKEY_USERS
        PID:4552
      • C:\Windows\system32\SearchFilterHost.exe
        "C:\Windows\system32\SearchFilterHost.exe" 828 2756 2760 812 {85EE815A-7738-4808-A14A-3AD87E32A3BF}
        2⤵
        • Modifies data under HKEY_USERS
        PID:2356

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\0ca0e47e-a234-4596-bbda-b695751ac234.down_data

      Filesize

      555KB

      MD5

      5683c0028832cae4ef93ca39c8ac5029

      SHA1

      248755e4e1db552e0b6f8651b04ca6d1b31a86fb

      SHA256

      855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

      SHA512

      aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

    • memory/1672-0-0x00007FFFC1183000-0x00007FFFC1185000-memory.dmp

      Filesize

      8KB

    • memory/1672-1-0x0000018A87230000-0x0000018A872FE000-memory.dmp

      Filesize

      824KB

    • memory/1672-2-0x00007FFFC1180000-0x00007FFFC1C42000-memory.dmp

      Filesize

      10.8MB

    • memory/1672-4-0x00007FFFC1183000-0x00007FFFC1185000-memory.dmp

      Filesize

      8KB

    • memory/1672-5-0x00007FFFC1180000-0x00007FFFC1C42000-memory.dmp

      Filesize

      10.8MB

    • memory/1672-7-0x00007FFFC1180000-0x00007FFFC1C42000-memory.dmp

      Filesize

      10.8MB

    • memory/4552-60-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-62-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-73-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-50-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-51-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-52-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-53-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-55-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-54-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-56-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-57-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-59-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-58-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-75-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-65-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-64-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-63-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-76-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-61-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-66-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-67-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-68-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-70-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-69-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-71-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-72-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-74-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-77-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-78-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-79-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/4552-80-0x00000223A3F90000-0x00000223A3FA0000-memory.dmp

      Filesize

      64KB

    • memory/5072-14-0x0000019D7C4F0000-0x0000019D7C500000-memory.dmp

      Filesize

      64KB

    • memory/5072-30-0x0000019D7C720000-0x0000019D7C730000-memory.dmp

      Filesize

      64KB

    • memory/5072-46-0x0000019D7C9E0000-0x0000019D7C9E8000-memory.dmp

      Filesize

      32KB