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Analysis

  • max time kernel
    155s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 08:12

General

  • Target

    d6cca03bee74ec4296f6c1a077f87110b1a4c5397adaba68c3df97317e9ca991.exe

  • Size

    168KB

  • MD5

    93a6cd5a811ca5e01f96a1849fc2f8e8

  • SHA1

    6ca0c859bb02612d83e0740101426e7c17686168

  • SHA256

    d6cca03bee74ec4296f6c1a077f87110b1a4c5397adaba68c3df97317e9ca991

  • SHA512

    21b58875673f36d564d9259336ecab8f1bcebdff8dd3cfbf3fc3d157182fc063772f996fc54daf270ca44d717fb1ad494a929fcab327cc8153f80cc9cdf69476

  • SSDEEP

    1536:aHob+TnkkpRNGojAbnXlkjZ2G+7ErBnOZn2KcGO3Ekm+7UmNhG6n3+f:sOukkJGoEbXldaE5eAp

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 42 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 6 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6cca03bee74ec4296f6c1a077f87110b1a4c5397adaba68c3df97317e9ca991.exe
    "C:\Users\Admin\AppData\Local\Temp\d6cca03bee74ec4296f6c1a077f87110b1a4c5397adaba68c3df97317e9ca991.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4372
    • 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:4020
      • 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:4092
        • 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:3232
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3232 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4416
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
            PID:1488
          • 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:2392
            • 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:3360
            • 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:2748
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?o"" /f
              5⤵
                PID:5000
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4624
              • 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:4740
              • 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:4428
              • 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:2248
              • 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:3580
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:1692
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:1484
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:1708
            • C:\Users\Admin\AppData\Local\Temp\inl519C.tmp
              C:\Users\Admin\AppData\Local\Temp\inl519C.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2732
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl519C.tmp > nul
                3⤵
                  PID:3860
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D6CCA0~1.EXE > nul
                2⤵
                  PID:696

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                Filesize

                471B

                MD5

                5ddb1febcd291eb59d3d67d24a05bfd0

                SHA1

                fe957affe27cb991f332e7f5c86d3a15359bd3b9

                SHA256

                ec45a385c906b3d925ebbe6532d10adec9a14c1733c756c64db5133bd9d88dcb

                SHA512

                62d00893402fae125ae3428da2495b0eb864b125f975cd887f894f7298a4a86f361cf50aaa7c9b69f3dcb734a950c43472778ea4062b3146c3de5623d08dcd21

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                Filesize

                434B

                MD5

                770c8aa7ab7720176472fea8266b97fc

                SHA1

                b9bf2ccf6d6021f8296af21403d9e5f59d63413c

                SHA256

                c2374377ec7ec487e404dae6b09401c072ee4bc65cef4c43ba8bbb643ffe08c7

                SHA512

                8a7f328a8c4aac4e1d07d671408f604e61c627c339623987f748105d4f0e1dc3ddd2033f68cdc0fc7ff9ad241db560a7f7371463d0677cf9913f7b929b2b6329

              • C:\Users\Admin\AppData\Local\Temp\inl519C.tmp

                Filesize

                57.2MB

                MD5

                791175fdde8bb1f6ee837998e0cadfee

                SHA1

                26369d89263010e28db2f7636e0aeb649d1ccfb1

                SHA256

                23eb8603703c568b6233d03b4eab71fb65ae958e115e1c5c5412ef8dca5aac53

                SHA512

                e39c9e476f8f62b97c50e0d59532c11e24331525ca4bb27d162148c1427477f33aac869384b9d594dea06aa747e891a863ebffdbe9ce7fd56e5f0dc21f1aa9b5

              • C:\Users\Admin\AppData\Local\Temp\inl519C.tmp

                Filesize

                57.2MB

                MD5

                791175fdde8bb1f6ee837998e0cadfee

                SHA1

                26369d89263010e28db2f7636e0aeb649d1ccfb1

                SHA256

                23eb8603703c568b6233d03b4eab71fb65ae958e115e1c5c5412ef8dca5aac53

                SHA512

                e39c9e476f8f62b97c50e0d59532c11e24331525ca4bb27d162148c1427477f33aac869384b9d594dea06aa747e891a863ebffdbe9ce7fd56e5f0dc21f1aa9b5

              • 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

                438f6aa5d5b5f86c6682d8fcb20b92ac

                SHA1

                d9641e29156574b9d12b5b240f7457c0dba6d768

                SHA256

                b076887939671da7cac989220bf623e59abc53ec1e4d58cd2ff7f71d9764e242

                SHA512

                e7def3aef828553d1249cc2156d8c7bf7695a4e457c21fd427b691002a7c50bf59da4c5600fc33db33b33e8463385d8dbcad05963b12912c6bd56f3446bf9903

              • memory/3232-154-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-192-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-157-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-224-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-159-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-160-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-161-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-153-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-164-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-144-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-151-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-150-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-168-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-170-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-173-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-174-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-176-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-178-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-223-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-149-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-180-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-181-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-175-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-222-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-183-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-187-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-148-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-189-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-221-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-147-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-156-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-194-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-220-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-195-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-218-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-202-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-217-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-143-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-142-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-140-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-138-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-216-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-208-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-209-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-210-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-211-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-212-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/3232-214-0x00007FFD3DA00000-0x00007FFD3DA6E000-memory.dmp

                Filesize

                440KB

              • memory/4372-179-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB

              • memory/4372-132-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB