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Analysis

  • max time kernel
    183s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 14:35

General

  • Target

    ebbe3e1f351dc9612f1a26c366bd8853c1e8418ee911156112cc5780fde10766.exe

  • Size

    54KB

  • MD5

    452a9f86b73df33d595adf4524749feb

  • SHA1

    efda76fcaa721dfa70d71704a60cb26c18e202d3

  • SHA256

    ebbe3e1f351dc9612f1a26c366bd8853c1e8418ee911156112cc5780fde10766

  • SHA512

    3c5013251a4789d1bb2d20c35e2efe1a28f299ee6f6a1ee2a0a907d880ccff15bdd37c2e880f6f7a0238c1166f2593bb550ca47290ad5096b51fe799bf5682e7

  • SSDEEP

    1536:gQ7Uv00YEHGTYZzyh9/TNtfQUgNNVNJlkP:gQ70YEFzgZTNXkiP

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 1 IoCs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 50 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebbe3e1f351dc9612f1a26c366bd8853c1e8418ee911156112cc5780fde10766.exe
    "C:\Users\Admin\AppData\Local\Temp\ebbe3e1f351dc9612f1a26c366bd8853c1e8418ee911156112cc5780fde10766.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\start_min_bat.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\duckload\1.bat
        3⤵
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:3028
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
          4⤵
          • Modifies Internet Explorer settings
          • Modifies Internet Explorer start page
          PID:4472
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
          4⤵
          • Modifies Internet Explorer settings
          • Modifies Internet Explorer start page
          PID:932
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
          4⤵
            PID:1824
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
            4⤵
            • Modifies registry class
            PID:2244
          • 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\duckload\3.bat""" /f
            4⤵
            • Modifies registry class
            PID:3268
          • C:\Windows\SysWOW64\attrib.exe
            attrib +s +h C:\Users\Admin\AppData\Roaming\duckload\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
            4⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:1272
          • C:\Windows\SysWOW64\attrib.exe
            attrib +s +h C:\Users\Admin\AppData\Roaming\duckload\tmp
            4⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:1892
          • C:\Windows\SysWOW64\rundll32.exe
            rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\duckload\2.inf
            4⤵
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:4436
            • C:\Windows\SysWOW64\runonce.exe
              "C:\Windows\system32\runonce.exe" -r
              5⤵
              • Checks processor information in registry
              • Suspicious use of WriteProcessMemory
              PID:624
              • C:\Windows\SysWOW64\grpconv.exe
                "C:\Windows\System32\grpconv.exe" -o
                6⤵
                  PID:3216
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 D:\VolumeDH\inj.dat,MainLoad
              4⤵
                PID:1416
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\duckload\2.bat
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3892
                • C:\PROGRA~1\INTERN~1\iexplore.exe
                  C:\PROGRA~1\INTERN~1\IEXPLORE.EXE http://www.cnkankan.com/?82133
                  5⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of FindShellTrayWindow
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:3168
                  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3168 CREDAT:17410 /prefetch:2
                    6⤵
                    • Modifies Internet Explorer settings
                    • Suspicious use of SetWindowsHookEx
                    PID:5036
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\duckload\1.inf
                  5⤵
                    PID:4784
            • C:\Users\Admin\AppData\Local\Temp\inl924A.tmp
              C:\Users\Admin\AppData\Local\Temp\inl924A.tmp
              2⤵
              • Executes dropped EXE
              PID:4004
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EBBE3E~1.EXE > nul
              2⤵
                PID:1600

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\PROGRA~1\INTERN~1\IEFRAME.dll

              Filesize

              5.8MB

              MD5

              0fd5193ec856a129ba0826165c99e41a

              SHA1

              37b03edf923c64f1897068ec8bbf511e21eabd5e

              SHA256

              3285005554d0ffefad33bfc4b7a1c11abb7a1571e74af18db70ac5fec1ce41fb

              SHA512

              b018ef88ee10aa1523287c915ef70542d3858d3943856a54af437d1923fba6ba82c38fedc7890f0bd8be369be72e6f1628e1f56b11b5f8ba58a903a2f37d63f2

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

              Filesize

              471B

              MD5

              fd70739fca5345a28f924f9102ae10ee

              SHA1

              6ce3f92183544f3bf52cb76364591589cb940a19

              SHA256

              f238404cc643efddef8ff430f128cdc8ec1513969eaac24b5e5bce81248a91e7

              SHA512

              a787d3a2bceeaed2f2a29f357df6ae17d5b9f66a3c561550d5f83c308ad26a1ddf876488151ff5e51ce93bfb9d0c7b8ca812d595e8d3ebdda7d805707ac1b278

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

              Filesize

              404B

              MD5

              611279089a379df7fd7054352d5dea0f

              SHA1

              7356502c5cacac30d49421edd24ee0af590f29ce

              SHA256

              ee6d59f2e147a0ad0e0713a03b22dd3fd4b9111a08321bf740de039193c38f6f

              SHA512

              02c38e6b50f84daf74d0db6bb76f0337992b9673b0aba1d41c968810112f97192ea6b360d7dfbda3b14f8d915236fec075982af27f79d991b946316d0daaf444

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

              Filesize

              1KB

              MD5

              2ce363dcf86e7778430917fdfb8b67e7

              SHA1

              dc369d16501ca840b8f83a55135ef388738fe020

              SHA256

              683f0fc1e37895d83e78c5c74dc4dfd21553b56c17db9a6af1be6c2c58fd1d89

              SHA512

              0c6ce5c4bcb2cc87f66a340f0f64fb7b4ef9fa5dc2ae85c3b447839dd434eb0d83f79268004bec8358b3f27e5e376b4e647aea639a293a80d50160d231aa1f1f

            • C:\Users\Admin\AppData\Local\Temp\cdf1912.tmp

              Filesize

              960B

              MD5

              5c85ce81bfb5a28f33edd9cb48743233

              SHA1

              5521f943791d643afcd6773155c0e0a52520f3fb

              SHA256

              33e516b86c6d5691ef255e802550b74580327e8ecb9aed6c7ac69dd7afa906c6

              SHA512

              d2757c893acbb4ebcd935a18d419e8e61f15c30dc0fe4fe7ea26e6a35b48daabd9afd7aea7ed2dca2e07f9d9f56e8c8a9023f5efa9cfd8c39b8285c69c617bd7

            • C:\Users\Admin\AppData\Local\Temp\inl924A.tmp

              Filesize

              57.2MB

              MD5

              7fe1417541c968c9c016a69364bf2fe6

              SHA1

              9b7c836ab5d91b3a3bab0791c8cfbb6edeeac06f

              SHA256

              26506f1b592c2a4459008e4998aab09a9b71079cd34ddc5153470c109a39599b

              SHA512

              a61b0f127f1e97015f9c0adaad098b970c01db26268636fa30e5ddaeabb4b394afe11d66a7f92559a40370cd8702e647c73cf364defc0beeb28c8b402f910453

            • C:\Users\Admin\AppData\Local\Temp\inl924A.tmp

              Filesize

              57.2MB

              MD5

              7fe1417541c968c9c016a69364bf2fe6

              SHA1

              9b7c836ab5d91b3a3bab0791c8cfbb6edeeac06f

              SHA256

              26506f1b592c2a4459008e4998aab09a9b71079cd34ddc5153470c109a39599b

              SHA512

              a61b0f127f1e97015f9c0adaad098b970c01db26268636fa30e5ddaeabb4b394afe11d66a7f92559a40370cd8702e647c73cf364defc0beeb28c8b402f910453

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

              Filesize

              55B

              MD5

              e191fedc0782635d37e36a8461827974

              SHA1

              523793f1e74d3ae481f5f42783244162efff4bfb

              SHA256

              9ee7d9d0f401b4fd51744d311c071bec10a20bc941385c5502c4eec958ae216f

              SHA512

              70094446f0ff5dac95902f6caabbe82046569f3fd37bf696648ed8213e1330c18b4d1cdfbc59a639aa52fb7c90192b9d3cd0e455660b1b5702d6c3bcdeed7c62

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

              Filesize

              3KB

              MD5

              493c22f6b15f9766ae7c23794fc77da0

              SHA1

              43723ba660dbc1486f717441b58298d33b9f2048

              SHA256

              478b8c2f0dc23db49d62f987ca5e01afde54d7abff647894ad2e38f9d7fde182

              SHA512

              662644aeef7666b23b90b6ce08ea8271a7cb7379bad6920434d045fdcbbcd48b4bbb65620ac4a5c347e376ecf2ff60e115b869c74a28ca7776cf6fc83b01df34

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

              Filesize

              410B

              MD5

              66a1f0147fed7ddd19e9bb7ff93705c5

              SHA1

              9d803c81ea2195617379b880b227892ba30b0bf6

              SHA256

              4f45ce85e221352f7fe26e04968c7f7267dc24b55cf2b72b929b4c90e48cb764

              SHA512

              cfe51756ddec75d240249980a4d27870d15983add25058e4d0da4d8a3ea11384d4d228d6cbc95091f91e516e1ab4dfb1e315941dbd95bf717d4b31936311d597

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

              Filesize

              3KB

              MD5

              1e2873fba5d47c46dcc543195e1d2f1a

              SHA1

              79a7abd13a534de56ec1aa01115f424dfe64a3db

              SHA256

              7af22b24ba8beae9145d2bce9b78fd876d41fc0e2c443b43026d63db9bf1e813

              SHA512

              0407fb9cc17529cd04aec74465143aa857a171145f9d15009eefde3d6b28c4bffa5dc04a3010dd4effae2324501cad911ba854b3ee7076c99728deea939da5f8

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

              Filesize

              249B

              MD5

              989d5ced1a763799655ef548607bb348

              SHA1

              9cce73c2d866f8933b3d68c60517fa3d2f46632d

              SHA256

              625c71f2fd19c0a583a04417992d652e8e6733b32ad599d974c9546a87dda872

              SHA512

              c858c22dbf9eeb07e6c52684b0678bdc40d65d8e58dda43b4aae7c1f88384d73788a792fdc4b5e524676d3e72e0f548b0210a3034dd738eb1085fa510c685f85

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

              Filesize

              5.8MB

              MD5

              0fd5193ec856a129ba0826165c99e41a

              SHA1

              37b03edf923c64f1897068ec8bbf511e21eabd5e

              SHA256

              3285005554d0ffefad33bfc4b7a1c11abb7a1571e74af18db70ac5fec1ce41fb

              SHA512

              b018ef88ee10aa1523287c915ef70542d3858d3943856a54af437d1923fba6ba82c38fedc7890f0bd8be369be72e6f1628e1f56b11b5f8ba58a903a2f37d63f2

            • memory/3168-172-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-189-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-222-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-221-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-159-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-160-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-216-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-163-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-164-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-215-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-166-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-167-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-168-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-169-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-170-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-213-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-171-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-173-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-175-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-177-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-179-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-180-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-181-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-182-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-183-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-185-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-212-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-188-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-190-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-191-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-192-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-193-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-194-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-195-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-200-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-199-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-201-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-202-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-203-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-208-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-209-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-211-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/3168-210-0x00007FFDF3EF0000-0x00007FFDF3F5E000-memory.dmp

              Filesize

              440KB

            • memory/4020-133-0x0000000000C40000-0x0000000000C43000-memory.dmp

              Filesize

              12KB

            • memory/4020-228-0x00000000002C0000-0x00000000002E5000-memory.dmp

              Filesize

              148KB

            • memory/4020-132-0x00000000002C0000-0x00000000002E5000-memory.dmp

              Filesize

              148KB