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Analysis

  • max time kernel
    112s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22/07/2024, 04:11

General

  • Target

    5a5f661f57fa5ef4e21c7044952f46d0N.exe

  • Size

    70KB

  • MD5

    5a5f661f57fa5ef4e21c7044952f46d0

  • SHA1

    3f486c07f6af7bacb5b127cea4d9d23e793131c5

  • SHA256

    f75a86e7845ccc38bd3bc6b3326e7308342ea37802aac970e637252ba38cf499

  • SHA512

    0b6902056cbf9e7d4c94bfaa4b2eab75cb4a47aa88abb8afb1217ce08ccc9d0fac865c3d109cc11c5dc73b8f8e2a6a6e5ab65f2b208425b7af2352131a810b9f

  • SSDEEP

    1536:RpJf7lEfNqUbyrrj57sXFjcXaIJjxK4jYUO:TJlK6kFYxxK4jYx

Score
8/10

Malware Config

Signatures

  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 6 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 12 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe
      2⤵
        PID:2888
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\123.bat
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\ZhuDongFangYu.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:1548
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\360tray.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:1412
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\taskmgr.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:2292
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c assoc .txt = exefile
        2⤵
        • Modifies registry class
        PID:1968
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype comfile=C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe
        2⤵
        • Modifies system executable filetype association
        • Modifies registry class
        PID:376
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype zipfile=C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe
        2⤵
        • Modifies registry class
        PID:888
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype jpgfile=C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe
        2⤵
        • Modifies registry class
        PID:2212
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype txtfile=C:\Users\Admin\AppData\Local\Temp\5a5f661f57fa5ef4e21c7044952f46d0N.exe
        2⤵
        • Modifies registry class
        PID:2444

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\123.bat

      Filesize

      443B

      MD5

      70170ba16a737a438223b88279dc6c85

      SHA1

      cc066efa0fca9bc9f44013660dea6b28ddfd6a24

      SHA256

      d3674f4b34a8ca8167160519aa5c66b6024eb09f4cb0c9278bc44370b0efec6a

      SHA512

      37cc8c954544374d0a1ca4d012c9bd0b47781bc9bb8d0c15a8a95b9934893db3bedee867b984c20edabe54c39574abf7250de433aade6c0d544b8dd2c972c6da

    • C:\Program Files\7-Zip\7zG.exe

      Filesize

      70KB

      MD5

      948159c4ee07771dfba556767267fc2e

      SHA1

      c73c62ff12607a7419b49d24daba18d1bf130fdd

      SHA256

      e9bd72f16ec092c6c974d802dc101a0eea20d391a83dc3acafe1b09a62010295

      SHA512

      2d1e26f2ad4b683c8cde53ed96bdac980d0100709d8bcfbcb363ba077006f3c5daf0bfbcd46b623434cc7d5db6df927cd34264153c9b15600212f7792aa523ab

    • memory/2388-0-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2388-1066-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB