Analysis

  • max time kernel
    148s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2022 15:01

General

  • Target

    ea5299437ba1ea8b46f95d0384705c12d95c9ab3ef1f1e68f0c7a574aaa73107.exe

  • Size

    168KB

  • MD5

    8373d5f129cc984cf7fbd86dccbaf0af

  • SHA1

    67d891a1a67e5e3fcd1fa05a5ba48a9b596fc146

  • SHA256

    ea5299437ba1ea8b46f95d0384705c12d95c9ab3ef1f1e68f0c7a574aaa73107

  • SHA512

    d1c7f67df74f6171e2529f2f0c572a720bdba36a0418fa1718bb21448b939ccfbca5b6878666175c4632324b855bdee53a1bd5811db8405874009baeb5a22a41

  • SSDEEP

    1536:AgIMXN4czoLRpCt98SaE4cku5V72O0zR1VuCEWWAERIxpE+s:BBARzSaEkuj72rzR1VuzWWCg

Malware Config

Signatures

  • joker

    Joker is an Android malware that targets billing and SMS fraud.

  • Executes dropped EXE 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 15 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ea5299437ba1ea8b46f95d0384705c12d95c9ab3ef1f1e68f0c7a574aaa73107.exe
    "C:\Users\Admin\AppData\Local\Temp\ea5299437ba1ea8b46f95d0384705c12d95c9ab3ef1f1e68f0c7a574aaa73107.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\julia_fun219.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1952
      • 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:1292
        • 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:1604
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1604 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1004
        • 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:1396
        • 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:2004
          • 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:840
          • 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:2024
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?o"" /f
            5⤵
              PID:880
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
              5⤵
              • Modifies registry class
              PID:1488
            • 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:308
            • 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:1452
            • 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:1544
            • 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:1064
              • C:\Windows\SysWOW64\runonce.exe
                "C:\Windows\system32\runonce.exe" -r
                6⤵
                • Checks processor information in registry
                PID:1536
                • C:\Windows\SysWOW64\grpconv.exe
                  "C:\Windows\System32\grpconv.exe" -o
                  7⤵
                    PID:1840
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 D:\VolumeDH\inj.dat,MainLoad
                5⤵
                  PID:1168
          • C:\Users\Admin\AppData\Local\Temp\inl8CB8.tmp
            C:\Users\Admin\AppData\Local\Temp\inl8CB8.tmp
            2⤵
            • Executes dropped EXE
            PID:2588
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EA5299~1.EXE > nul
            2⤵
            • Deletes itself
            PID:2284

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\inl8CB8.tmp

          Filesize

          122.8MB

          MD5

          01080f7f285db7b1394d1bc4e73df162

          SHA1

          2273b6a1e3259090096c40ff275788a8b76092b2

          SHA256

          80c91f7422606fb5cf0778cf0f995600ce18f5cb3bec273bae704061c41956a3

          SHA512

          f0cbc000ecba05b8f944a024f511a8fa026fd755db0c9f87ca637d001188d900d0fe69b7d20418f5e8b44be52e1c57e8f197a4aaedb57d4a7778431f66e197aa

        • C:\Users\Admin\AppData\Local\Temp\julia_fun219.bat

          Filesize

          53B

          MD5

          23962a245f75fe25510051582203aff1

          SHA1

          20832a3a1179bb2730194d2f7738d41d5d669a43

          SHA256

          1abcea214b9b2bd76cc04be07ae2d4d70371e6ca443d99f4f1327afe7a5fc647

          SHA512

          dc36b64f2dbb710652900a31295c148760b0c44eae13515aa29613916c9dffe3d8e55ba61568f7c27b43bf0c341f7dcd4b9c721f81627fc6bb915b15c358fe80

        • C:\Users\Admin\AppData\Local\Temp\winrar_config.tmp

          Filesize

          660B

          MD5

          c40ea8f677b3f48bfb7f4cfc6d3f03ab

          SHA1

          10b94afd8e6ea98a3c8a955304f9ce660b0c380a

          SHA256

          b1a31a74cc88d0f8e39aaebf58a724b89391dc3fbac733953790edf8ded8172c

          SHA512

          409b8a45576bf08e185446b13a512c115df7483ff8ec30ea51ee93ee1ac8153ae3b615650ff69a5d1e41fa0cd57fcdc4c5d03b4b4453431114ac018f48e194d9

        • 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

          01c8aef7cb7c760a26c0d930e68bdc1b

          SHA1

          c9a39d7b1dbf74d6e9ff589b0933fdf96266adf5

          SHA256

          3b594b2a554cf3365d6da9d208cbb212b0ea9b1e8287ba1b8208943c7b42cd7f

          SHA512

          f3e652cd8171e97b05c133706e7ab67b3d83c349b11f50068a22a784ae62b040739ec9e30da08d4ea207af2f63c61363805759170cc22868eedb20d52959bf2f

        • \Users\Admin\AppData\Local\Temp\inl8CB8.tmp

          Filesize

          122.8MB

          MD5

          01080f7f285db7b1394d1bc4e73df162

          SHA1

          2273b6a1e3259090096c40ff275788a8b76092b2

          SHA256

          80c91f7422606fb5cf0778cf0f995600ce18f5cb3bec273bae704061c41956a3

          SHA512

          f0cbc000ecba05b8f944a024f511a8fa026fd755db0c9f87ca637d001188d900d0fe69b7d20418f5e8b44be52e1c57e8f197a4aaedb57d4a7778431f66e197aa

        • \Users\Admin\AppData\Local\Temp\inl8CB8.tmp

          Filesize

          122.8MB

          MD5

          01080f7f285db7b1394d1bc4e73df162

          SHA1

          2273b6a1e3259090096c40ff275788a8b76092b2

          SHA256

          80c91f7422606fb5cf0778cf0f995600ce18f5cb3bec273bae704061c41956a3

          SHA512

          f0cbc000ecba05b8f944a024f511a8fa026fd755db0c9f87ca637d001188d900d0fe69b7d20418f5e8b44be52e1c57e8f197a4aaedb57d4a7778431f66e197aa

        • memory/1604-65-0x0000000002460000-0x0000000002470000-memory.dmp

          Filesize

          64KB

        • memory/1604-61-0x000007FEFB5C1000-0x000007FEFB5C3000-memory.dmp

          Filesize

          8KB

        • memory/1884-54-0x0000000075571000-0x0000000075573000-memory.dmp

          Filesize

          8KB

        • memory/1884-55-0x0000000000400000-0x000000000042A000-memory.dmp

          Filesize

          168KB

        • memory/1884-92-0x0000000000400000-0x000000000042A000-memory.dmp

          Filesize

          168KB