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Analysis

  • max time kernel
    183s
  • max time network
    199s
  • 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, 18:24

General

  • Target

    0bbfe4a93ccda69d3aa428db0e590b6227afb7b913945f19d729c41900f97d3c.exe

  • Size

    183KB

  • MD5

    0fc54212e276e7b20d020ee246330a6a

  • SHA1

    91aefc8cc86674a9a05a9ae27d0d6a8b8934c4b0

  • SHA256

    0bbfe4a93ccda69d3aa428db0e590b6227afb7b913945f19d729c41900f97d3c

  • SHA512

    97457f2e160845f22230ffe12905744beabc990cf85165a466b298e85ef732cc22299dd7cd379c25bef30d83ad1760e011eac072030580aa029a59e193b59733

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DEcdwvz:gDCwfG1bnxLEc6vz

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\0bbfe4a93ccda69d3aa428db0e590b6227afb7b913945f19d729c41900f97d3c.exe
    "C:\Users\Admin\AppData\Local\Temp\0bbfe4a93ccda69d3aa428db0e590b6227afb7b913945f19d729c41900f97d3c.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:4092
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3684
    • 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:4932
      • 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:4820
      • 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:4328
        • 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:1492
          • 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:948
          • 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:1232
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:220
            • 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:4680
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3528
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1036
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2764
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1528
        • 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:3848
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4268
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2728
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4012
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4976
    • 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:2476
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1736
      • 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:2032
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3436

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      183KB

      MD5

      01dc86009bc8e2b7f1b58ff4f0494582

      SHA1

      5ea72e7681e6e49dcbc7fd84fe2fced1280e1782

      SHA256

      6f729ef86b92503abc48f94ccdd3b7c0565f1085847713db6bf9719511241235

      SHA512

      a53e670eea718e701ee84a64c0b190a474878533a22963577da653e5f5cdcacb7ff12018d9f443443117a9062b57830d3014774ba124b0c8b6a1ddeb5fe0ce30

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

      Filesize

      183KB

      MD5

      01dc86009bc8e2b7f1b58ff4f0494582

      SHA1

      5ea72e7681e6e49dcbc7fd84fe2fced1280e1782

      SHA256

      6f729ef86b92503abc48f94ccdd3b7c0565f1085847713db6bf9719511241235

      SHA512

      a53e670eea718e701ee84a64c0b190a474878533a22963577da653e5f5cdcacb7ff12018d9f443443117a9062b57830d3014774ba124b0c8b6a1ddeb5fe0ce30

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

      Filesize

      183KB

      MD5

      01dc86009bc8e2b7f1b58ff4f0494582

      SHA1

      5ea72e7681e6e49dcbc7fd84fe2fced1280e1782

      SHA256

      6f729ef86b92503abc48f94ccdd3b7c0565f1085847713db6bf9719511241235

      SHA512

      a53e670eea718e701ee84a64c0b190a474878533a22963577da653e5f5cdcacb7ff12018d9f443443117a9062b57830d3014774ba124b0c8b6a1ddeb5fe0ce30

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

      Filesize

      183KB

      MD5

      01dc86009bc8e2b7f1b58ff4f0494582

      SHA1

      5ea72e7681e6e49dcbc7fd84fe2fced1280e1782

      SHA256

      6f729ef86b92503abc48f94ccdd3b7c0565f1085847713db6bf9719511241235

      SHA512

      a53e670eea718e701ee84a64c0b190a474878533a22963577da653e5f5cdcacb7ff12018d9f443443117a9062b57830d3014774ba124b0c8b6a1ddeb5fe0ce30

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      5b87381bf407d7c6018a8b11c3e20f92

      SHA1

      bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

      SHA256

      4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

      SHA512

      05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

    • C:\Windows\hosts.exe

      Filesize

      183KB

      MD5

      7c2be9504727f546e9faa4288dcaf453

      SHA1

      4e64e537087c8372f251e3e1c64a9331e11fb421

      SHA256

      6740dd64b171f9302078a8e60087b971eca4fd074ed97a262627f6a12e8c420e

      SHA512

      27568f285420fab2214d51a9190c1e40f0060ffc43086e7e9a85bb1e4bf60b65cdfdff3009043318ab386797ba57be0c1d6a63289df34a85e28ae7c2e08c7321

    • C:\Windows\hosts.exe

      Filesize

      183KB

      MD5

      7c2be9504727f546e9faa4288dcaf453

      SHA1

      4e64e537087c8372f251e3e1c64a9331e11fb421

      SHA256

      6740dd64b171f9302078a8e60087b971eca4fd074ed97a262627f6a12e8c420e

      SHA512

      27568f285420fab2214d51a9190c1e40f0060ffc43086e7e9a85bb1e4bf60b65cdfdff3009043318ab386797ba57be0c1d6a63289df34a85e28ae7c2e08c7321

    • C:\Windows\hosts.exe

      Filesize

      183KB

      MD5

      7c2be9504727f546e9faa4288dcaf453

      SHA1

      4e64e537087c8372f251e3e1c64a9331e11fb421

      SHA256

      6740dd64b171f9302078a8e60087b971eca4fd074ed97a262627f6a12e8c420e

      SHA512

      27568f285420fab2214d51a9190c1e40f0060ffc43086e7e9a85bb1e4bf60b65cdfdff3009043318ab386797ba57be0c1d6a63289df34a85e28ae7c2e08c7321

    • C:\Windows\hosts.exe

      Filesize

      183KB

      MD5

      7c2be9504727f546e9faa4288dcaf453

      SHA1

      4e64e537087c8372f251e3e1c64a9331e11fb421

      SHA256

      6740dd64b171f9302078a8e60087b971eca4fd074ed97a262627f6a12e8c420e

      SHA512

      27568f285420fab2214d51a9190c1e40f0060ffc43086e7e9a85bb1e4bf60b65cdfdff3009043318ab386797ba57be0c1d6a63289df34a85e28ae7c2e08c7321

    • C:\windows\hosts.exe

      Filesize

      183KB

      MD5

      7c2be9504727f546e9faa4288dcaf453

      SHA1

      4e64e537087c8372f251e3e1c64a9331e11fb421

      SHA256

      6740dd64b171f9302078a8e60087b971eca4fd074ed97a262627f6a12e8c420e

      SHA512

      27568f285420fab2214d51a9190c1e40f0060ffc43086e7e9a85bb1e4bf60b65cdfdff3009043318ab386797ba57be0c1d6a63289df34a85e28ae7c2e08c7321

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b