Analysis

  • max time kernel
    125s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2022, 09:49

General

  • Target

    3eaa901d1b151fb67d5df543a987041c17568914932136fd9d74315138c8b95c.exe

  • Size

    171KB

  • MD5

    d9885615e02ccb31e35b40e31f06855d

  • SHA1

    46a1105c79198b55decda69bf8b5a4d42e9f574f

  • SHA256

    3eaa901d1b151fb67d5df543a987041c17568914932136fd9d74315138c8b95c

  • SHA512

    9adb122bec02969f98dc64d76ce18161440e24506a68242a52fb4e3796bc4def1139eb4c8c66d1f8e5ed520ae72bce3f86c35b659008ccf50e392408958b620b

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCmT4k3hsanEtOX:gDCwfG1bnxM6saEtOX

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3eaa901d1b151fb67d5df543a987041c17568914932136fd9d74315138c8b95c.exe
    "C:\Users\Admin\AppData\Local\Temp\3eaa901d1b151fb67d5df543a987041c17568914932136fd9d74315138c8b95c.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:336
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4784
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:440
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2352
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:3068
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:1464
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:2736
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:4132
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4552
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4668
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:736
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2212
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:3784
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2140
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3936
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4452
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4856
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:400
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2588
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:3084
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3628

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\avscan.exe

            Filesize

            171KB

            MD5

            73ac9d8df7a75a87a1453457c6862a75

            SHA1

            e5866aa0fa81215b57391f93f8c4b26fb75b05ba

            SHA256

            c0c0d8d8e1239a9d97a88d7a5fdaa90ab91dcaecf7a146bc1e4dee7534dc6254

            SHA512

            196d4754269734346fb58503151596ae6c762277e79d11e30156393883697d20feb9debfa3a3363fd2ea225664158c9274494d49359379813e81e62313511471

          • C:\Users\Admin\AppData\Local\Temp\avscan.exe

            Filesize

            171KB

            MD5

            73ac9d8df7a75a87a1453457c6862a75

            SHA1

            e5866aa0fa81215b57391f93f8c4b26fb75b05ba

            SHA256

            c0c0d8d8e1239a9d97a88d7a5fdaa90ab91dcaecf7a146bc1e4dee7534dc6254

            SHA512

            196d4754269734346fb58503151596ae6c762277e79d11e30156393883697d20feb9debfa3a3363fd2ea225664158c9274494d49359379813e81e62313511471

          • C:\Users\Admin\AppData\Local\Temp\avscan.exe

            Filesize

            171KB

            MD5

            73ac9d8df7a75a87a1453457c6862a75

            SHA1

            e5866aa0fa81215b57391f93f8c4b26fb75b05ba

            SHA256

            c0c0d8d8e1239a9d97a88d7a5fdaa90ab91dcaecf7a146bc1e4dee7534dc6254

            SHA512

            196d4754269734346fb58503151596ae6c762277e79d11e30156393883697d20feb9debfa3a3363fd2ea225664158c9274494d49359379813e81e62313511471

          • C:\Users\Admin\AppData\Local\Temp\avscan.exe

            Filesize

            171KB

            MD5

            73ac9d8df7a75a87a1453457c6862a75

            SHA1

            e5866aa0fa81215b57391f93f8c4b26fb75b05ba

            SHA256

            c0c0d8d8e1239a9d97a88d7a5fdaa90ab91dcaecf7a146bc1e4dee7534dc6254

            SHA512

            196d4754269734346fb58503151596ae6c762277e79d11e30156393883697d20feb9debfa3a3363fd2ea225664158c9274494d49359379813e81e62313511471

          • C:\Windows\W_X_C.vbs

            Filesize

            195B

            MD5

            c35f93e634b81f2cb003c72a1fb9d1f2

            SHA1

            9b6c533eebab7958e9e167ab93a412d5411c7a89

            SHA256

            6afae199db9be5b7c4c5dac778ec8c45051666d11f93dd93c1700beb20e1136f

            SHA512

            5cc512763da54bc66ffff42e02dc28ad9cda03e46a8b9181425c619815fb7c7afe3a71fc73742e151e26de7a21ade101e59d6853fe70b7d99ea93195325c010d

          • C:\Windows\hosts.exe

            Filesize

            171KB

            MD5

            fa0839dadcb72e104e6b2b020ddd2904

            SHA1

            72b5c9bb3d13bba92ef7d95fc99426a3cf2471f0

            SHA256

            18627b32ca31ecac47f306f26cf35ffe64ee29841c331cd22985054b1ab0229c

            SHA512

            467bd4e4063b67a6f50798a6ecf8b0e661d365d125eba6d136f9b959140699b05b1d928bca0f376c0d6eae13cd41d21d9db9d829d5095910d2f4ca7edff4032f

          • C:\Windows\hosts.exe

            Filesize

            171KB

            MD5

            fa0839dadcb72e104e6b2b020ddd2904

            SHA1

            72b5c9bb3d13bba92ef7d95fc99426a3cf2471f0

            SHA256

            18627b32ca31ecac47f306f26cf35ffe64ee29841c331cd22985054b1ab0229c

            SHA512

            467bd4e4063b67a6f50798a6ecf8b0e661d365d125eba6d136f9b959140699b05b1d928bca0f376c0d6eae13cd41d21d9db9d829d5095910d2f4ca7edff4032f

          • C:\Windows\hosts.exe

            Filesize

            171KB

            MD5

            fa0839dadcb72e104e6b2b020ddd2904

            SHA1

            72b5c9bb3d13bba92ef7d95fc99426a3cf2471f0

            SHA256

            18627b32ca31ecac47f306f26cf35ffe64ee29841c331cd22985054b1ab0229c

            SHA512

            467bd4e4063b67a6f50798a6ecf8b0e661d365d125eba6d136f9b959140699b05b1d928bca0f376c0d6eae13cd41d21d9db9d829d5095910d2f4ca7edff4032f

          • C:\Windows\hosts.exe

            Filesize

            171KB

            MD5

            fa0839dadcb72e104e6b2b020ddd2904

            SHA1

            72b5c9bb3d13bba92ef7d95fc99426a3cf2471f0

            SHA256

            18627b32ca31ecac47f306f26cf35ffe64ee29841c331cd22985054b1ab0229c

            SHA512

            467bd4e4063b67a6f50798a6ecf8b0e661d365d125eba6d136f9b959140699b05b1d928bca0f376c0d6eae13cd41d21d9db9d829d5095910d2f4ca7edff4032f

          • C:\windows\hosts.exe

            Filesize

            171KB

            MD5

            fa0839dadcb72e104e6b2b020ddd2904

            SHA1

            72b5c9bb3d13bba92ef7d95fc99426a3cf2471f0

            SHA256

            18627b32ca31ecac47f306f26cf35ffe64ee29841c331cd22985054b1ab0229c

            SHA512

            467bd4e4063b67a6f50798a6ecf8b0e661d365d125eba6d136f9b959140699b05b1d928bca0f376c0d6eae13cd41d21d9db9d829d5095910d2f4ca7edff4032f

          • \??\c:\windows\W_X_C.bat

            Filesize

            336B

            MD5

            4db9f8b6175722b62ececeeeba1ce307

            SHA1

            3b3ba8414706e72a6fa19e884a97b87609e11e47

            SHA256

            d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

            SHA512

            1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b