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Analysis

  • max time kernel
    128s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2022, 14:50

General

  • Target

    c0c71726ae07bded4d2dbb380eaccb837361a8b72cb528222ecc5615e33a67a2.exe

  • Size

    190KB

  • MD5

    02741a4953e2eb08e64422d494cb999b

  • SHA1

    0cb5e676d12b2ec65fc32b40bc9156b9e68fb005

  • SHA256

    c0c71726ae07bded4d2dbb380eaccb837361a8b72cb528222ecc5615e33a67a2

  • SHA512

    05095f24cc71e410f89309940414f0c547c4653559250478bdc8addcd171f3641b563ae0019585f9bb2ee1eef3c80f586beea1c0c52beb6d86c5f681de4fd24c

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQ9pssU9Z:gDCwfG1bnxLERResdZ

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0c71726ae07bded4d2dbb380eaccb837361a8b72cb528222ecc5615e33a67a2.exe
    "C:\Users\Admin\AppData\Local\Temp\c0c71726ae07bded4d2dbb380eaccb837361a8b72cb528222ecc5615e33a67a2.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 behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4744
    • 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:4984
      • 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:2236
      • 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:516
        • 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:3092
          • 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:112
          • 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:4648
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:1852
            • 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:3464
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:5028
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4228
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3908
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3276
        • 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:1472
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2168
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1112
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2376
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1896
    • 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:4312
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1624
      • 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:4380
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4716

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      190KB

      MD5

      33c25bcba1d95afd58445f2a44edb657

      SHA1

      4a3794e0377658b8b86d912bbe1384118ba84d50

      SHA256

      e76a1b3f720a9bd69da08709d6dfe5adf683e033711e09aa38e0346b76a1a9f8

      SHA512

      6aa18727d5b73c38aae37b989f8dda6caaed1f08875a54a091948461727af28e8a63c494d99992315d5acd80bb5edf473fa41682ce027813acd2774b8e6297ac

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

      Filesize

      190KB

      MD5

      33c25bcba1d95afd58445f2a44edb657

      SHA1

      4a3794e0377658b8b86d912bbe1384118ba84d50

      SHA256

      e76a1b3f720a9bd69da08709d6dfe5adf683e033711e09aa38e0346b76a1a9f8

      SHA512

      6aa18727d5b73c38aae37b989f8dda6caaed1f08875a54a091948461727af28e8a63c494d99992315d5acd80bb5edf473fa41682ce027813acd2774b8e6297ac

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

      Filesize

      190KB

      MD5

      33c25bcba1d95afd58445f2a44edb657

      SHA1

      4a3794e0377658b8b86d912bbe1384118ba84d50

      SHA256

      e76a1b3f720a9bd69da08709d6dfe5adf683e033711e09aa38e0346b76a1a9f8

      SHA512

      6aa18727d5b73c38aae37b989f8dda6caaed1f08875a54a091948461727af28e8a63c494d99992315d5acd80bb5edf473fa41682ce027813acd2774b8e6297ac

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

      Filesize

      190KB

      MD5

      33c25bcba1d95afd58445f2a44edb657

      SHA1

      4a3794e0377658b8b86d912bbe1384118ba84d50

      SHA256

      e76a1b3f720a9bd69da08709d6dfe5adf683e033711e09aa38e0346b76a1a9f8

      SHA512

      6aa18727d5b73c38aae37b989f8dda6caaed1f08875a54a091948461727af28e8a63c494d99992315d5acd80bb5edf473fa41682ce027813acd2774b8e6297ac

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      5b87381bf407d7c6018a8b11c3e20f92

      SHA1

      bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

      SHA256

      4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

      SHA512

      05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

    • C:\Windows\hosts.exe

      Filesize

      190KB

      MD5

      7207d103e2fcc294dd761dc201fb3845

      SHA1

      4190c97c2cc6e54a39775c8797b39b832bb6b098

      SHA256

      849b9ce66c97206338aca9292ec79c6f738a8eb9cebc6f6ea8664dd4009b4348

      SHA512

      e105b689d23af6b535020ae14371ffc3cc3e55c3bd129f1ba71ae6c4452cfbd6a90f1dbd1132c729cbde6aa34094d8e9a6f74a961ec919cda5bae7e09a37ce3f

    • C:\Windows\hosts.exe

      Filesize

      190KB

      MD5

      7207d103e2fcc294dd761dc201fb3845

      SHA1

      4190c97c2cc6e54a39775c8797b39b832bb6b098

      SHA256

      849b9ce66c97206338aca9292ec79c6f738a8eb9cebc6f6ea8664dd4009b4348

      SHA512

      e105b689d23af6b535020ae14371ffc3cc3e55c3bd129f1ba71ae6c4452cfbd6a90f1dbd1132c729cbde6aa34094d8e9a6f74a961ec919cda5bae7e09a37ce3f

    • C:\Windows\hosts.exe

      Filesize

      190KB

      MD5

      7207d103e2fcc294dd761dc201fb3845

      SHA1

      4190c97c2cc6e54a39775c8797b39b832bb6b098

      SHA256

      849b9ce66c97206338aca9292ec79c6f738a8eb9cebc6f6ea8664dd4009b4348

      SHA512

      e105b689d23af6b535020ae14371ffc3cc3e55c3bd129f1ba71ae6c4452cfbd6a90f1dbd1132c729cbde6aa34094d8e9a6f74a961ec919cda5bae7e09a37ce3f

    • C:\Windows\hosts.exe

      Filesize

      190KB

      MD5

      7207d103e2fcc294dd761dc201fb3845

      SHA1

      4190c97c2cc6e54a39775c8797b39b832bb6b098

      SHA256

      849b9ce66c97206338aca9292ec79c6f738a8eb9cebc6f6ea8664dd4009b4348

      SHA512

      e105b689d23af6b535020ae14371ffc3cc3e55c3bd129f1ba71ae6c4452cfbd6a90f1dbd1132c729cbde6aa34094d8e9a6f74a961ec919cda5bae7e09a37ce3f

    • C:\windows\hosts.exe

      Filesize

      190KB

      MD5

      7207d103e2fcc294dd761dc201fb3845

      SHA1

      4190c97c2cc6e54a39775c8797b39b832bb6b098

      SHA256

      849b9ce66c97206338aca9292ec79c6f738a8eb9cebc6f6ea8664dd4009b4348

      SHA512

      e105b689d23af6b535020ae14371ffc3cc3e55c3bd129f1ba71ae6c4452cfbd6a90f1dbd1132c729cbde6aa34094d8e9a6f74a961ec919cda5bae7e09a37ce3f

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b