Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/06/2024, 17:31

General

  • Target
    New/3mm.exe
  • Size 1009KB
  • Sample240611-v35bcavdmb
  • SHA256 05b5a1a5354201eb02051a8555a63d82e98766798f5739111c454103ca2599bb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

  • mimikatz is an open source tool to dump credentials on Windows 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New\3mm.exe
    "C:\Users\Admin\AppData\Local\Temp\New\3mm.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Windows\Help\Help\3.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\Help\Help\Win32\mimikatz.exe
        Win32\mimikatz.exe privilege::debug sekurlsa::logonpasswords
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3276
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo Executed 32. You can close ."
        3⤵
          PID:948
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\HZ~7724.tmp.bat"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1556
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 2
          3⤵
          • Runs ping.exe
          PID:4352
    • 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:3048

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          SearchHoverUnifiedTileModelCache.dat

          • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat
          • Size 11KB
          • SHA256 70a6cf268c013fb4d907bedc12af3e5f802f179f0cc8353c7b8227dde840d31a
          • MD5 SHA1 SHA512 SSDEEP

          HZ~7724.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\HZ~7724.tmp.bat
          • Size 152B
          • SHA256 2ed1c3802692a780c56735e17d2a33f48071aa91471b9abe75943076e31f8238
          • MD5 SHA1 SHA512

          3.bat

          • Path C:\Windows\Help\Help\3.bat
          • Size 196B
          • SHA256 b05f645941a40594c82a4277cb02edcf75a31378676f002dcd79c9dda2f71a43
          • MD5 SHA1 SHA512

          mimikatz.exe

          • Path C:\Windows\Help\Help\Win32\mimikatz.exe
          • Size 1.0MB
          • SHA256 94795fd89366e01bd6ce6471ff27c3782e2e16377a848426cf0b2e6baee9449b
          • MD5 SHA1 SHA512 SSDEEP