Analysis

  • max time kernel
    132s
  • max time network
    136s
  • 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

    2cd8889544fbbdf7f6dd2b1b1488ca807ff471891fe3376213a6bd06bbb85472.exe

  • Size

    246KB

  • MD5

    2b3349497a043955fc62d4d2904db91b

  • SHA1

    6c12d6b6827a5a74d5a8386b98a47df81f0210f0

  • SHA256

    2cd8889544fbbdf7f6dd2b1b1488ca807ff471891fe3376213a6bd06bbb85472

  • SHA512

    b07c093c44a67e9a21007e74bfb9bf76288584ec1bd742752244e9bdab8e302066c729778cdc31db442f7507c429c3c77e409e6c24068861772dd18afde85df4

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCmkMB07sGhD83uj4VwI+04rIqK0dEqvz:gDCwfG1bnxpBnOQ3ujVzKv0Sqvz

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\2cd8889544fbbdf7f6dd2b1b1488ca807ff471891fe3376213a6bd06bbb85472.exe
    "C:\Users\Admin\AppData\Local\Temp\2cd8889544fbbdf7f6dd2b1b1488ca807ff471891fe3376213a6bd06bbb85472.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:4760
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3488
    • 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:1624
      • 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:4216
      • 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:3308
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3680
        • 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:4724
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:944
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2332
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2480
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4496
    • 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:4336
      • 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:4528
        • 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:1312
        • 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:1800
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:764
          • 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:3816
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3228
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:364
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2792
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1080
      • 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:3964
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2252

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            Filesize

            246KB

            MD5

            50dae5d52d6710e756f061904db3039f

            SHA1

            21e3ef26e03b80a286a891377afedc6e032cf3dc

            SHA256

            21edc3ce38ec6aa93c9ef06f9d4fde5a941eda28e4d0e964f769db1fb9aece71

            SHA512

            6d514572c531d8a76cf5d07e2b4b2ace816609690fc00a0f54f5d847270d7fb83b4a4c09a25382c8e53ad88eb508744a5e34ea602445513780090935669eeb63

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

            Filesize

            246KB

            MD5

            50dae5d52d6710e756f061904db3039f

            SHA1

            21e3ef26e03b80a286a891377afedc6e032cf3dc

            SHA256

            21edc3ce38ec6aa93c9ef06f9d4fde5a941eda28e4d0e964f769db1fb9aece71

            SHA512

            6d514572c531d8a76cf5d07e2b4b2ace816609690fc00a0f54f5d847270d7fb83b4a4c09a25382c8e53ad88eb508744a5e34ea602445513780090935669eeb63

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

            Filesize

            246KB

            MD5

            50dae5d52d6710e756f061904db3039f

            SHA1

            21e3ef26e03b80a286a891377afedc6e032cf3dc

            SHA256

            21edc3ce38ec6aa93c9ef06f9d4fde5a941eda28e4d0e964f769db1fb9aece71

            SHA512

            6d514572c531d8a76cf5d07e2b4b2ace816609690fc00a0f54f5d847270d7fb83b4a4c09a25382c8e53ad88eb508744a5e34ea602445513780090935669eeb63

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

            Filesize

            246KB

            MD5

            50dae5d52d6710e756f061904db3039f

            SHA1

            21e3ef26e03b80a286a891377afedc6e032cf3dc

            SHA256

            21edc3ce38ec6aa93c9ef06f9d4fde5a941eda28e4d0e964f769db1fb9aece71

            SHA512

            6d514572c531d8a76cf5d07e2b4b2ace816609690fc00a0f54f5d847270d7fb83b4a4c09a25382c8e53ad88eb508744a5e34ea602445513780090935669eeb63

          • C:\Windows\W_X_C.vbs

            Filesize

            195B

            MD5

            7fc0db81060e343fd209dc050b401f77

            SHA1

            08ce8975b023bf90c21b8e64cd54fdd39debce04

            SHA256

            4a21d378652d4291a6b9e88a1934ac51e9eccd5c9a42aa09076219301509367f

            SHA512

            e0d13ba3713707f7cb9be56240930a8f47d8c302e692b49dcb01f7bdf3e3475f829e1ead60ce6a5f98bed591be96456e9c3ef67bb27f88dc70343c1412e9de57

          • C:\Windows\hosts.exe

            Filesize

            246KB

            MD5

            36ba918c6d03d0c4c4172d5d6a24ff2d

            SHA1

            fe6bad9ff97fa8211a462c5195751f044ee6138b

            SHA256

            e361e2512f1b8ae307ea15226ad823dbe15df3d02489c51050b83d82a4aae96f

            SHA512

            fd6f8335b69651c2e78ae161fa4e9924ea98aef08134e7aceb0bcc9101a7e9c9879ecf18d0336136222cb8e97519a91ab78d2bd5c646d2f8ae580cd4eef77ccc

          • C:\Windows\hosts.exe

            Filesize

            246KB

            MD5

            36ba918c6d03d0c4c4172d5d6a24ff2d

            SHA1

            fe6bad9ff97fa8211a462c5195751f044ee6138b

            SHA256

            e361e2512f1b8ae307ea15226ad823dbe15df3d02489c51050b83d82a4aae96f

            SHA512

            fd6f8335b69651c2e78ae161fa4e9924ea98aef08134e7aceb0bcc9101a7e9c9879ecf18d0336136222cb8e97519a91ab78d2bd5c646d2f8ae580cd4eef77ccc

          • C:\Windows\hosts.exe

            Filesize

            246KB

            MD5

            36ba918c6d03d0c4c4172d5d6a24ff2d

            SHA1

            fe6bad9ff97fa8211a462c5195751f044ee6138b

            SHA256

            e361e2512f1b8ae307ea15226ad823dbe15df3d02489c51050b83d82a4aae96f

            SHA512

            fd6f8335b69651c2e78ae161fa4e9924ea98aef08134e7aceb0bcc9101a7e9c9879ecf18d0336136222cb8e97519a91ab78d2bd5c646d2f8ae580cd4eef77ccc

          • C:\Windows\hosts.exe

            Filesize

            246KB

            MD5

            36ba918c6d03d0c4c4172d5d6a24ff2d

            SHA1

            fe6bad9ff97fa8211a462c5195751f044ee6138b

            SHA256

            e361e2512f1b8ae307ea15226ad823dbe15df3d02489c51050b83d82a4aae96f

            SHA512

            fd6f8335b69651c2e78ae161fa4e9924ea98aef08134e7aceb0bcc9101a7e9c9879ecf18d0336136222cb8e97519a91ab78d2bd5c646d2f8ae580cd4eef77ccc

          • C:\windows\hosts.exe

            Filesize

            246KB

            MD5

            36ba918c6d03d0c4c4172d5d6a24ff2d

            SHA1

            fe6bad9ff97fa8211a462c5195751f044ee6138b

            SHA256

            e361e2512f1b8ae307ea15226ad823dbe15df3d02489c51050b83d82a4aae96f

            SHA512

            fd6f8335b69651c2e78ae161fa4e9924ea98aef08134e7aceb0bcc9101a7e9c9879ecf18d0336136222cb8e97519a91ab78d2bd5c646d2f8ae580cd4eef77ccc

          • \??\c:\windows\W_X_C.bat

            Filesize

            336B

            MD5

            4db9f8b6175722b62ececeeeba1ce307

            SHA1

            3b3ba8414706e72a6fa19e884a97b87609e11e47

            SHA256

            d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

            SHA512

            1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b