Analysis

  • max time kernel
    168s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2022 17:38

General

  • Target

    d9f716caf8a2f74f0a5c38cc884d82719c9c6398b7b77640f901acad4fd0dfcc.exe

  • Size

    168KB

  • MD5

    65b7d1b175a9f0f5379b743835ee8600

  • SHA1

    60733315f2fda4edcaa6cd3ac19885eca4f08f64

  • SHA256

    d9f716caf8a2f74f0a5c38cc884d82719c9c6398b7b77640f901acad4fd0dfcc

  • SHA512

    196760fb63c295388fc70b3cc71b8f02f3d965fea5e7ff38725646627b301c7ef02dada052f25683b4b1e745630a9e6566eb987fa557e3b24ee20808a7e5b563

  • SSDEEP

    1536:aHob+TnkkpRNGojAbnXlkjZ2G+7ErBnOZn2KcGO3Ekm+7UmNhG6n3+B:sOukkJGoEbXldaE5eAT

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.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops file in Program Files 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 64 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9f716caf8a2f74f0a5c38cc884d82719c9c6398b7b77640f901acad4fd0dfcc.exe
    "C:\Users\Admin\AppData\Local\Temp\d9f716caf8a2f74f0a5c38cc884d82719c9c6398b7b77640f901acad4fd0dfcc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\teacher2011_check.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:204
      • 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:2640
        • 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:3460
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3460 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1380
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
            PID:3184
          • 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:4240
            • 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:1880
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?o"" /f
              5⤵
                PID:2968
              • 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:2204
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:8
              • 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:2556
              • 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:3108
              • 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:4080
              • 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
                • Suspicious use of WriteProcessMemory
                PID:4544
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:4824
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:3384
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:3776
            • C:\Users\Admin\AppData\Local\Temp\inl87EF.tmp
              C:\Users\Admin\AppData\Local\Temp\inl87EF.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1440
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl87EF.tmp > nul
                3⤵
                  PID:2628
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D9F716~1.EXE > nul
                2⤵
                  PID:4572

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\69C6F6EC64E114822DF688DC12CDD86C

                Filesize

                631B

                MD5

                38f881f3a073a20f6b215b338d664f52

                SHA1

                9da80c3ff4c1c1dbff8699923870ba26a61a9feb

                SHA256

                cbe0e13b55fa32d0bd7899d6bbad0c69d24cb11da9d53c2ce30d0d68895d5558

                SHA512

                353b0d1debe1e2f2ab706f9102af2da10989d58e65ace6b9641c40f909dc89f368c31aa0a4629265288aafe81c82a002e1235be83b9e32d155760d523ef950eb

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\69C6F6EC64E114822DF688DC12CDD86C

                Filesize

                242B

                MD5

                5df889bd7be1b7d4e9fdcffb3a158fda

                SHA1

                4ee01b9955ab3d9645bc161783736e3f552545ee

                SHA256

                b7c37ef1e6860d2df53b6eb5cdaebe0e528204d068c27e28649e42c85ccf877b

                SHA512

                96f4a83bf6f711acf487c69dadce1a828d6a81232db98071eec27a948107c5de7bcc43f427b8c2bf94b1d840bc3ae08014ebbdcf1e50e0d3bb0c614d7ac01bed

              • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\dqptnfu\imagestore.dat

                Filesize

                1KB

                MD5

                a868ac27b657b93f62514f9264abf00f

                SHA1

                9845da74c4893e4d74492f902020cae94256c9d3

                SHA256

                e041e4a03ffc916cfbd4d1c2f86a806f26cd32cf0c8e30415d77e7e9531a0616

                SHA512

                c305cecb65704dde335a95962164e73cf83ad8b19212773ef1ae958e75a2a301650b482c1e14900f16a092bc85a2701974fc81aea8ec2938bb6934d9c7bb5bd8

              • C:\Users\Admin\AppData\Local\Temp\inl87EF.tmp

                Filesize

                57.2MB

                MD5

                242ae926bce2a04c99fdf0e848de51f8

                SHA1

                59e15f07f3d9ed839cbc163c64c7b866781725f4

                SHA256

                d955081855cdbecec0d775ee1c021ad2750d9c6de5fe8187e1afd2badd5f01dd

                SHA512

                a8bb5cf16aa3f7a9065a44c7e692707348b70eae1fb0b561b30935f6043aea3a34b502b21bbc9a6b99e541fa50f04a24646f6b28331f4bea2cd730ae11a76ddc

              • C:\Users\Admin\AppData\Local\Temp\inl87EF.tmp

                Filesize

                57.2MB

                MD5

                242ae926bce2a04c99fdf0e848de51f8

                SHA1

                59e15f07f3d9ed839cbc163c64c7b866781725f4

                SHA256

                d955081855cdbecec0d775ee1c021ad2750d9c6de5fe8187e1afd2badd5f01dd

                SHA512

                a8bb5cf16aa3f7a9065a44c7e692707348b70eae1fb0b561b30935f6043aea3a34b502b21bbc9a6b99e541fa50f04a24646f6b28331f4bea2cd730ae11a76ddc

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

                5.8MB

                MD5

                c7e05ef12f90b58b3ad4b56b56fea8bb

                SHA1

                6601dd73a1a7c82a741af619651c434fce975e08

                SHA256

                90045f342e4fde200b3c0eff0ce273116b44910fe8a948d3b44c2af678f3a08f

                SHA512

                d17204e4dadc4ba7b926eb6d7c008f9f4bfa2b800aa0cc82c6adb709d768aa28e4d4e3b4f3e28f92acdce41f7ebdde81305bfbb8d1dfca3461ded6a19cbdd062

              • memory/3460-151-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-208-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-162-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-157-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-153-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-169-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-152-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-149-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-171-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-172-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-166-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-173-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-150-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-175-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-146-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-181-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-182-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-179-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-140-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-185-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-148-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-186-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-142-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-222-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-221-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-189-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-190-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-145-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-194-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-216-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-215-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-198-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-199-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-200-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-201-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-202-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-160-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-144-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-209-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-210-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-211-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-212-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/3460-213-0x00007FFC884C0000-0x00007FFC8852E000-memory.dmp

                Filesize

                440KB

              • memory/4328-183-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB

              • memory/4328-132-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB