Analysis

  • max time kernel
    151s
  • max time network
    174s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 13:45

General

  • Target

    972189225555b57931937cee712098408fe90a0766cffbe6ec005d197d21a207.exe

  • Size

    57KB

  • MD5

    0fad6375acf65b3faaaaa0cfb9eb0664

  • SHA1

    a858b2f109adb7da107f026f2ab6177246d0d201

  • SHA256

    972189225555b57931937cee712098408fe90a0766cffbe6ec005d197d21a207

  • SHA512

    391dcfdc8a7e8be745605e7f12f48b9e8932aa321e4eabee3f47fd90297fcebbedab23b0b101094dea5ad3df13324e236bcb0ed9837bee49df4965c1252d383b

  • SSDEEP

    768:hBRMLJshpXC1tlRiYTqyFN9Mwxgb+qi90sG3gGaru+6o6cAT5LZwmChDkGBh9OHW:hBFwt8Om/sPruWOLZwmChgGzg+fPVG6F

Score
8/10

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 47 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\972189225555b57931937cee712098408fe90a0766cffbe6ec005d197d21a207.exe
    "C:\Users\Admin\AppData\Local\Temp\972189225555b57931937cee712098408fe90a0766cffbe6ec005d197d21a207.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1020
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\teacher2011_check.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\PPLive\1.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:432
        • C:\PROGRA~1\INTERN~1\iexplore.exe
          C:\PROGRA~1\INTERN~1\IEXPLORE.EXE http://WWw.cnkankan.com/?82133
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1688
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1688 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:472
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:1760
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\PPLive\2.bat
          4⤵
          • Drops file in Program Files directory
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?o"" /f
            5⤵
            • Modifies Internet Explorer settings
            • Modifies Internet Explorer start page
            PID:776
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?o"" /f
            5⤵
            • Modifies Internet Explorer settings
            • Modifies Internet Explorer start page
            PID:1720
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?o"" /f
            5⤵
              PID:1884
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
              5⤵
              • Modifies registry class
              PID:1580
            • C:\Windows\SysWOW64\attrib.exe
              attrib +s +h C:\Users\Admin\AppData\Roaming\PPLive\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
              5⤵
              • Sets file to hidden
              • Views/modifies file attributes
              PID:1040
            • C:\Windows\SysWOW64\attrib.exe
              attrib +s +h C:\Users\Admin\AppData\Roaming\PPLive\tmp
              5⤵
              • Sets file to hidden
              • Views/modifies file attributes
              PID:1556
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\2.inf
              5⤵
              • Adds Run key to start application
              • Drops file in Windows directory
              • Suspicious use of AdjustPrivilegeToken
              PID:1560
              • C:\Windows\SysWOW64\runonce.exe
                "C:\Windows\system32\runonce.exe" -r
                6⤵
                • Checks processor information in registry
                PID:2308
                • C:\Windows\SysWOW64\grpconv.exe
                  "C:\Windows\System32\grpconv.exe" -o
                  7⤵
                    PID:2320
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}\Shell\open(&H)\Command" /v "" /d "wscript -e:vbs ""C:\Users\Admin\AppData\Roaming\PPLive\3.bat""" /f
                5⤵
                • Modifies registry class
                PID:588
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 D:\VolumeDH\inj.dat,MainLoad
                5⤵
                  PID:1364

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\teacher2011_check.bat

          Filesize

          53B

          MD5

          23962a245f75fe25510051582203aff1

          SHA1

          20832a3a1179bb2730194d2f7738d41d5d669a43

          SHA256

          1abcea214b9b2bd76cc04be07ae2d4d70371e6ca443d99f4f1327afe7a5fc647

          SHA512

          dc36b64f2dbb710652900a31295c148760b0c44eae13515aa29613916c9dffe3d8e55ba61568f7c27b43bf0c341f7dcd4b9c721f81627fc6bb915b15c358fe80

        • C:\Users\Admin\AppData\Roaming\PPLive\1.bat

          Filesize

          3KB

          MD5

          b7c5e3b416b1d1b5541ef44662e1a764

          SHA1

          8bff7ea2be2f3cf29f2381d8007198b5991ca3ae

          SHA256

          f1a2f9fdebb3cac24756e53fa5e1628b2bd1cc130480c1878e3b3bc880575cd1

          SHA512

          65dbd6a7a7cf6fec00e6b0f1d7d5655769e6087ad09cad74c91c5a3395e675ac8f9df5c7185327e6f8dd03ddb60504400f54237d9e4b53c8b08e7e3d41ee61fc

        • C:\Users\Admin\AppData\Roaming\PPLive\1.inf

          Filesize

          492B

          MD5

          34c14b8530e1094e792527f7a474fe77

          SHA1

          f71c4e9091140256b34c18220d1dd1efab1f301d

          SHA256

          fe0dfb3458bfe2a3632d365e00765fa10f14d62e7dfa8b70a055c7eb9fdb6713

          SHA512

          25bb09b526e1e9f5c6052f1f7c36b37c956c1b5649936af8df3abfcf120c931f3d2603e17a061cb99d8c8074bfb1973a5423cce89762fca53cd46aeb3e8944a2

        • C:\Users\Admin\AppData\Roaming\PPLive\2.bat

          Filesize

          3KB

          MD5

          6b78cb8ced798ca5df5612dd62ce0965

          SHA1

          5a9c299393b96b0bf8f6770e3c7b0318a9e2e0cf

          SHA256

          81f64f42edfac2863a55db8fabd528c4eefc67f7e658cad6a57eeec862e444e3

          SHA512

          b387ba10021f3284d1406d520a2c8b3ba0c87922d67c79394c1aa50c631194519ac6bb5b898956533f040d48e1c7b202734e0075f8fc8c8bfab82c8ef359b28e

        • C:\Users\Admin\AppData\Roaming\PPLive\2.inf

          Filesize

          247B

          MD5

          ca436f6f187bc049f9271ecdcbf348fa

          SHA1

          bf8a548071cfc150f7affb802538edf03d281106

          SHA256

          6cdfa9b7f0e1e4ee16bc8ce5d7448d47ea8866c1f55f3e56be5c2a4d183ca534

          SHA512

          d19e20aabddad6b0284f8c1d473e9180f30b49d4d8b54f26e7c8630228e16b1f6ba04023c5e8b1993d8a10d97adcfff683b216f79b9981bf16181641aebdd591

        • C:\Users\Admin\AppData\Roaming\PPLive\4.bat

          Filesize

          12.3MB

          MD5

          b23902eec821ca1ebc424b2b74c9465f

          SHA1

          7f1425a18d75db561053551c7bf5b4afc2536bae

          SHA256

          607685980b73d8573389b6183c1ce1cb0202e8fe66fe2daa89bb25e9830fae87

          SHA512

          7cfc11e266a326f011165e83af84f34578bceadc1faf9498f357d79347003359688b97b30dbcc3606dc469b026c2dcec73128fdad2865eee112fff2d1530226b

        • memory/1020-75-0x00000000005A0000-0x00000000005AF000-memory.dmp

          Filesize

          60KB

        • memory/1020-85-0x0000000000340000-0x0000000000367000-memory.dmp

          Filesize

          156KB

        • memory/1020-54-0x00000000762D1000-0x00000000762D3000-memory.dmp

          Filesize

          8KB

        • memory/1020-56-0x0000000000020000-0x0000000000023000-memory.dmp

          Filesize

          12KB

        • memory/1020-55-0x0000000000340000-0x0000000000367000-memory.dmp

          Filesize

          156KB