Analysis

  • max time kernel
    163s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 18:20

General

  • Target

    f34a47854683ba64fd0ded9f919f55dd367ddedf458afbc7abeeba4dfd073952.exe

  • Size

    198KB

  • MD5

    0f0fb40c0a0d30b16cb7cd663577883b

  • SHA1

    c2ed195117614f83cbc4bc76c9b4d81624e80f5c

  • SHA256

    f34a47854683ba64fd0ded9f919f55dd367ddedf458afbc7abeeba4dfd073952

  • SHA512

    1d7f63cafecd41fd9fab1a4749bfd603ee93abf149ef772478b17e9843f22d4a63bfb018152dc385a1f1806fcf6bca19336b9b0c4b8b48195c4222ebf7146032

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQyzfRlREQk++M4t:gDCwfG1bnxLERRBbDREQZ+MG

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\f34a47854683ba64fd0ded9f919f55dd367ddedf458afbc7abeeba4dfd073952.exe
    "C:\Users\Admin\AppData\Local\Temp\f34a47854683ba64fd0ded9f919f55dd367ddedf458afbc7abeeba4dfd073952.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:5096
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1720
    • 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:1292
      • 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:4120
      • 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:1388
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4788
        • 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:204
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4348
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1728
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1028
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:776
    • 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:4544
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • 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:2416
        • C:\Users\Admin\AppData\Local\Temp\avscan.exe
          C:\Users\Admin\AppData\Local\Temp\avscan.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2348
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
          4⤵
          • Checks computer location settings
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:5032
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:1536
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            PID:2340
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1188
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1448
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:5100
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4192
      • 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:224
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1520

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      198KB

      MD5

      2b189bc8260cd081b2e89ea608724066

      SHA1

      eba83e70993e5da677da5af7e33971ef1c7a82c3

      SHA256

      13b11a75cf9e127ebc03a915c21cce4e9d7197d4e0f65798fbc4d4b51514915a

      SHA512

      e3f475acf593a0b80a3197d03cb8679a90f093a62a2e8076476a39b33ab0b0de6e43efb310e47259fd879d4461e861d0487adfef0e71455f8bedcf4f309b9aab

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

      Filesize

      198KB

      MD5

      2b189bc8260cd081b2e89ea608724066

      SHA1

      eba83e70993e5da677da5af7e33971ef1c7a82c3

      SHA256

      13b11a75cf9e127ebc03a915c21cce4e9d7197d4e0f65798fbc4d4b51514915a

      SHA512

      e3f475acf593a0b80a3197d03cb8679a90f093a62a2e8076476a39b33ab0b0de6e43efb310e47259fd879d4461e861d0487adfef0e71455f8bedcf4f309b9aab

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

      Filesize

      198KB

      MD5

      2b189bc8260cd081b2e89ea608724066

      SHA1

      eba83e70993e5da677da5af7e33971ef1c7a82c3

      SHA256

      13b11a75cf9e127ebc03a915c21cce4e9d7197d4e0f65798fbc4d4b51514915a

      SHA512

      e3f475acf593a0b80a3197d03cb8679a90f093a62a2e8076476a39b33ab0b0de6e43efb310e47259fd879d4461e861d0487adfef0e71455f8bedcf4f309b9aab

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

      Filesize

      198KB

      MD5

      2b189bc8260cd081b2e89ea608724066

      SHA1

      eba83e70993e5da677da5af7e33971ef1c7a82c3

      SHA256

      13b11a75cf9e127ebc03a915c21cce4e9d7197d4e0f65798fbc4d4b51514915a

      SHA512

      e3f475acf593a0b80a3197d03cb8679a90f093a62a2e8076476a39b33ab0b0de6e43efb310e47259fd879d4461e861d0487adfef0e71455f8bedcf4f309b9aab

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      c35f93e634b81f2cb003c72a1fb9d1f2

      SHA1

      9b6c533eebab7958e9e167ab93a412d5411c7a89

      SHA256

      6afae199db9be5b7c4c5dac778ec8c45051666d11f93dd93c1700beb20e1136f

      SHA512

      5cc512763da54bc66ffff42e02dc28ad9cda03e46a8b9181425c619815fb7c7afe3a71fc73742e151e26de7a21ade101e59d6853fe70b7d99ea93195325c010d

    • C:\Windows\hosts.exe

      Filesize

      198KB

      MD5

      e67c6a6460720b3f2df0b5f6f33347cc

      SHA1

      dd45768ae96e5ed08b364e6df758edfcb2271349

      SHA256

      7cd87403e3791a3e19e8b4ad27cb87a5472dfe03db84ed3a586250c855f6c024

      SHA512

      8a471f315b0beed84a048e214d6144959401ceb2a14d8b90e029e5a06a94b88c959bd22e5b1e323b54f17720be5d15efb986f705bb394ca0cd6c030c83322766

    • C:\Windows\hosts.exe

      Filesize

      198KB

      MD5

      e67c6a6460720b3f2df0b5f6f33347cc

      SHA1

      dd45768ae96e5ed08b364e6df758edfcb2271349

      SHA256

      7cd87403e3791a3e19e8b4ad27cb87a5472dfe03db84ed3a586250c855f6c024

      SHA512

      8a471f315b0beed84a048e214d6144959401ceb2a14d8b90e029e5a06a94b88c959bd22e5b1e323b54f17720be5d15efb986f705bb394ca0cd6c030c83322766

    • C:\Windows\hosts.exe

      Filesize

      198KB

      MD5

      e67c6a6460720b3f2df0b5f6f33347cc

      SHA1

      dd45768ae96e5ed08b364e6df758edfcb2271349

      SHA256

      7cd87403e3791a3e19e8b4ad27cb87a5472dfe03db84ed3a586250c855f6c024

      SHA512

      8a471f315b0beed84a048e214d6144959401ceb2a14d8b90e029e5a06a94b88c959bd22e5b1e323b54f17720be5d15efb986f705bb394ca0cd6c030c83322766

    • C:\Windows\hosts.exe

      Filesize

      198KB

      MD5

      e67c6a6460720b3f2df0b5f6f33347cc

      SHA1

      dd45768ae96e5ed08b364e6df758edfcb2271349

      SHA256

      7cd87403e3791a3e19e8b4ad27cb87a5472dfe03db84ed3a586250c855f6c024

      SHA512

      8a471f315b0beed84a048e214d6144959401ceb2a14d8b90e029e5a06a94b88c959bd22e5b1e323b54f17720be5d15efb986f705bb394ca0cd6c030c83322766

    • C:\windows\hosts.exe

      Filesize

      198KB

      MD5

      e67c6a6460720b3f2df0b5f6f33347cc

      SHA1

      dd45768ae96e5ed08b364e6df758edfcb2271349

      SHA256

      7cd87403e3791a3e19e8b4ad27cb87a5472dfe03db84ed3a586250c855f6c024

      SHA512

      8a471f315b0beed84a048e214d6144959401ceb2a14d8b90e029e5a06a94b88c959bd22e5b1e323b54f17720be5d15efb986f705bb394ca0cd6c030c83322766

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b