Analysis

  • max time kernel
    126s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 16:27

General

  • Target

    7c2ff9ddb3f4a1a0f8c29764134cd3c54f586c9e2e409583797c8726f9d927b2.exe

  • Size

    695KB

  • MD5

    66137fe37f88e4d841cafb127426cd0d

  • SHA1

    9f2bd68ccc54ee352dfcb99e4d163ab0da1fe304

  • SHA256

    7c2ff9ddb3f4a1a0f8c29764134cd3c54f586c9e2e409583797c8726f9d927b2

  • SHA512

    f022997bcedf93a284da095a26cc4e50d341b7a6746ee956ae4374b210860c1aaf6d7d079f29322b7a692352cdb1cb2efedecfba663b95103bdeae7f883e86eb

  • SSDEEP

    12288:g72bntEDs72bntED8A72bntEDs72bntED84F:g72zms72zmP72zms72zmP

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\7c2ff9ddb3f4a1a0f8c29764134cd3c54f586c9e2e409583797c8726f9d927b2.exe
    "C:\Users\Admin\AppData\Local\Temp\7c2ff9ddb3f4a1a0f8c29764134cd3c54f586c9e2e409583797c8726f9d927b2.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:4876
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4804
    • 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:1336
      • 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:2288
      • 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:2364
        • 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:3368
          • 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:3376
          • 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:32
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:4416
            • 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:1512
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4580
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3068
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3708
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4992
        • 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:1308
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2396
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3904
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3384
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2648
    • 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:1576
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3588
      • 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:2264
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3336

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            Filesize

            695KB

            MD5

            6e49870b6a8102241350a58900efa2af

            SHA1

            b6718dedd1fce30479bb71dda43a61e75ba66515

            SHA256

            e176feca0dcce810a338843d65dc61931395c88abba1df05ad5ee0a2663c3694

            SHA512

            eed901e8815e9aa1cb6a810c02af46322d37df42b88c29c3473d472004c46ff0b78bb3babe33660953a2ff7579734d11476a5276b74bf2c6b0aa3d2f43b85d4e

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

            Filesize

            695KB

            MD5

            6e49870b6a8102241350a58900efa2af

            SHA1

            b6718dedd1fce30479bb71dda43a61e75ba66515

            SHA256

            e176feca0dcce810a338843d65dc61931395c88abba1df05ad5ee0a2663c3694

            SHA512

            eed901e8815e9aa1cb6a810c02af46322d37df42b88c29c3473d472004c46ff0b78bb3babe33660953a2ff7579734d11476a5276b74bf2c6b0aa3d2f43b85d4e

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

            Filesize

            695KB

            MD5

            6e49870b6a8102241350a58900efa2af

            SHA1

            b6718dedd1fce30479bb71dda43a61e75ba66515

            SHA256

            e176feca0dcce810a338843d65dc61931395c88abba1df05ad5ee0a2663c3694

            SHA512

            eed901e8815e9aa1cb6a810c02af46322d37df42b88c29c3473d472004c46ff0b78bb3babe33660953a2ff7579734d11476a5276b74bf2c6b0aa3d2f43b85d4e

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

            Filesize

            695KB

            MD5

            6e49870b6a8102241350a58900efa2af

            SHA1

            b6718dedd1fce30479bb71dda43a61e75ba66515

            SHA256

            e176feca0dcce810a338843d65dc61931395c88abba1df05ad5ee0a2663c3694

            SHA512

            eed901e8815e9aa1cb6a810c02af46322d37df42b88c29c3473d472004c46ff0b78bb3babe33660953a2ff7579734d11476a5276b74bf2c6b0aa3d2f43b85d4e

          • C:\Windows\W_X_C.vbs

            Filesize

            195B

            MD5

            0e0483d4802632100b6bfe8bc2e5d661

            SHA1

            767e0deb7dcaa7676004e6053957c36cecfeeefa

            SHA256

            81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

            SHA512

            8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

          • C:\Windows\hosts.exe

            Filesize

            695KB

            MD5

            b51af1be6fb12ce36dd5933e9c48c32a

            SHA1

            5d67e4a132743303b3ba78b370040cd818a872b7

            SHA256

            d4dca78e76f3dd4e5b982a0083ec343de35312e583346ff07c5d3bebaa44c23a

            SHA512

            0d67b1b26c4bf8fe4dd80b1bb5ab26f1e2c38bcae36d8e8f333fa38d019d4d005d56c3769eae3826aba6bf1477b9ad829375ee1062da11842fe69206531e3974

          • C:\Windows\hosts.exe

            Filesize

            695KB

            MD5

            b51af1be6fb12ce36dd5933e9c48c32a

            SHA1

            5d67e4a132743303b3ba78b370040cd818a872b7

            SHA256

            d4dca78e76f3dd4e5b982a0083ec343de35312e583346ff07c5d3bebaa44c23a

            SHA512

            0d67b1b26c4bf8fe4dd80b1bb5ab26f1e2c38bcae36d8e8f333fa38d019d4d005d56c3769eae3826aba6bf1477b9ad829375ee1062da11842fe69206531e3974

          • C:\Windows\hosts.exe

            Filesize

            695KB

            MD5

            b51af1be6fb12ce36dd5933e9c48c32a

            SHA1

            5d67e4a132743303b3ba78b370040cd818a872b7

            SHA256

            d4dca78e76f3dd4e5b982a0083ec343de35312e583346ff07c5d3bebaa44c23a

            SHA512

            0d67b1b26c4bf8fe4dd80b1bb5ab26f1e2c38bcae36d8e8f333fa38d019d4d005d56c3769eae3826aba6bf1477b9ad829375ee1062da11842fe69206531e3974

          • C:\Windows\hosts.exe

            Filesize

            695KB

            MD5

            b51af1be6fb12ce36dd5933e9c48c32a

            SHA1

            5d67e4a132743303b3ba78b370040cd818a872b7

            SHA256

            d4dca78e76f3dd4e5b982a0083ec343de35312e583346ff07c5d3bebaa44c23a

            SHA512

            0d67b1b26c4bf8fe4dd80b1bb5ab26f1e2c38bcae36d8e8f333fa38d019d4d005d56c3769eae3826aba6bf1477b9ad829375ee1062da11842fe69206531e3974

          • C:\windows\hosts.exe

            Filesize

            695KB

            MD5

            b51af1be6fb12ce36dd5933e9c48c32a

            SHA1

            5d67e4a132743303b3ba78b370040cd818a872b7

            SHA256

            d4dca78e76f3dd4e5b982a0083ec343de35312e583346ff07c5d3bebaa44c23a

            SHA512

            0d67b1b26c4bf8fe4dd80b1bb5ab26f1e2c38bcae36d8e8f333fa38d019d4d005d56c3769eae3826aba6bf1477b9ad829375ee1062da11842fe69206531e3974

          • \??\c:\windows\W_X_C.bat

            Filesize

            336B

            MD5

            4db9f8b6175722b62ececeeeba1ce307

            SHA1

            3b3ba8414706e72a6fa19e884a97b87609e11e47

            SHA256

            d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

            SHA512

            1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b