Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2022 04:31

General

  • Target

    dab3dde6b604078481c0e2e7f5932569276c79e943ff80b5ca86fcfc3e1475f9.exe

  • Size

    46KB

  • MD5

    58a67f1e9941af97d4d4fe3bc39a294f

  • SHA1

    955d2e6eb77e1412ee4d0dd493a8b03f4f9e3446

  • SHA256

    dab3dde6b604078481c0e2e7f5932569276c79e943ff80b5ca86fcfc3e1475f9

  • SHA512

    ac917fa20e587f9dc10bd9c34b3180f3e85d7ece778619cf3272056de7b12d521f512b34f0b2c4b25471ea0467bdcb648b23056439e8eac6eaa2f34cd44d2828

  • SSDEEP

    768:dCObWQJdEEUSuyJlsCEQ6yz6zxktAZikqbC/oJxK2ZOZPYV1QL:bsSuynIUtAZikqbC/IxfZOS1I

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\dab3dde6b604078481c0e2e7f5932569276c79e943ff80b5ca86fcfc3e1475f9.exe
    "C:\Users\Admin\AppData\Local\Temp\dab3dde6b604078481c0e2e7f5932569276c79e943ff80b5ca86fcfc3e1475f9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1512
    • 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:1148
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\winzip\1.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4852
        • 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:3596
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3596 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3256
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\winzip\1.inf
          4⤵
            PID:1924
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\winzip\2.bat
            4⤵
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Suspicious use of WriteProcessMemory
            PID:968
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:4012
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:2184
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:2256
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4580
              • 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\winzip\3.bat""" /f
                5⤵
                • Modifies registry class
                PID:2156
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\winzip\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:4524
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\winzip\tmp
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:4516
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\winzip\2.inf
                5⤵
                • Adds Run key to start application
                • Suspicious use of WriteProcessMemory
                PID:1808
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:3452
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:1320
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:860
            • C:\Users\Admin\AppData\Local\Temp\inl4F56.tmp
              C:\Users\Admin\AppData\Local\Temp\inl4F56.tmp
              2⤵
              • Executes dropped EXE
              PID:4368
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\DAB3DD~1.EXE > nul
              2⤵
                PID:1912

            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

              7550b85aee4221c59808672005ed8855

              SHA1

              aeb269eff06f518132b9ecea824523fa125ba2d2

              SHA256

              2b1c1e36c5419b7b3351aad8a08fee019473c832fe242ec2bf438b160d5eb8b2

              SHA512

              216d401cb461099f7d2f3626957800cba77308b790ec181e2affb97339570bb9e168a56f3264cad79cd60589637679728fb2a87199a91667dc3ccfd4117f2bab

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

              Filesize

              434B

              MD5

              125c619e5889c718ef7bcde9e3984725

              SHA1

              46e14d83a729f583beb185267f88833c6f580a04

              SHA256

              0f5c937f5d41aa941580b6631efea5ab478798ce3678e5dfc12d6b81736e57ca

              SHA512

              432313fbff86951ed4c5bc227e7e313784a076f2bd6a3c8164b15c0757f91cda9a90a849b0a3469fce39400c8af252cc33da1b4ce273fe0fcd8d92cc450195e1

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\z2evvp3\imagestore.dat

              Filesize

              1KB

              MD5

              8fbe2328f04251245fd79bde4b926a76

              SHA1

              def1a38d89fa52c8cc5058ff610f95fcb1b300e7

              SHA256

              d9d5ab8da43c37e7f5e5eb1ddee1e75ef127eebbc2231d8bddae1d9ea4509e0b

              SHA512

              38c025b7acb728c5e307cc725cabf0af39f5422d39e5a6c82e61f4c68c8b78957199f8a329ef80271cfe143710f05cfa0c65c79a200ecb591a4c1ee233b69c2d

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

              Filesize

              1KB

              MD5

              5aa2590df5a24c322b3e3dca5e3fdd0e

              SHA1

              b9c2e7e8ab6d8440b1f29e298513641f3c448799

              SHA256

              4fbf8c920a71e802499002eba6ec8ac64e16370e464b67d6ad9fc5a90c2eb572

              SHA512

              deba63181d0c516d0c93955e7c93d84784576990624f6534be710bfd1dbbc0c08f0a0fe55c1c2d2f843181365fbcd3c85fe241e124c1d726c7771ee8e4da7e96

            • C:\Users\Admin\AppData\Local\Temp\inl4F56.tmp

              Filesize

              57.2MB

              MD5

              efc63b47bef993f58440b3dab7882d9b

              SHA1

              75dacc403adcd83bbbe27e2a1f8a25d4637df95c

              SHA256

              ddd78ef7716b6168bd633d73ca9d2fa7ee4aa13db3fb05316cbf1ba589c5047b

              SHA512

              c6598c67be0e058634a47e9b9bfcb9bf50ba5a4bba5acd9f08548c4caab1dc943c66256d62e521db0afe83294311a5f2db553a7db50c668234f1f895d53dd57f

            • C:\Users\Admin\AppData\Local\Temp\inl4F56.tmp

              Filesize

              57.2MB

              MD5

              efc63b47bef993f58440b3dab7882d9b

              SHA1

              75dacc403adcd83bbbe27e2a1f8a25d4637df95c

              SHA256

              ddd78ef7716b6168bd633d73ca9d2fa7ee4aa13db3fb05316cbf1ba589c5047b

              SHA512

              c6598c67be0e058634a47e9b9bfcb9bf50ba5a4bba5acd9f08548c4caab1dc943c66256d62e521db0afe83294311a5f2db553a7db50c668234f1f895d53dd57f

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

              Filesize

              53B

              MD5

              9b41ad553fc0a87c014049dfede9e7fa

              SHA1

              840b9c356ec59e65d33bae61c439b0abf11663bd

              SHA256

              a4bd6b14aa9694ba74db5503576072036cd232d586b5e3dd3fe3dade84a67b5e

              SHA512

              6de134478cd5052675cf936f3dc92fb823d72fc3d44c66f5d0755691481302f63cfe602dd7b492354487c9c5b692a09a404c1081265bb3676030cb43a64369b8

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

              Filesize

              2KB

              MD5

              68a30985a8b4a1dae5b24721ca5b8269

              SHA1

              78481107bbddcf18ffc4d25a184ec74274241a6b

              SHA256

              fe94352a25ade782ea77db82f1ec849479ebfe4605156142fc3fdfabc507a0cf

              SHA512

              d452182a296a9e202bce81ad0c752b34d4d779cac94bb54a07517936b79a4007127585673c524c75055f15e33c56eef0d26d1c448723a97fe70c15457bae5a24

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

              Filesize

              410B

              MD5

              66a1f0147fed7ddd19e9bb7ff93705c5

              SHA1

              9d803c81ea2195617379b880b227892ba30b0bf6

              SHA256

              4f45ce85e221352f7fe26e04968c7f7267dc24b55cf2b72b929b4c90e48cb764

              SHA512

              cfe51756ddec75d240249980a4d27870d15983add25058e4d0da4d8a3ea11384d4d228d6cbc95091f91e516e1ab4dfb1e315941dbd95bf717d4b31936311d597

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

              Filesize

              3KB

              MD5

              c106ffc420b54a4f0fd331f10657dc66

              SHA1

              8930d5b56358f518bdf5ccca2b4d24f98ce7a03f

              SHA256

              fb8218f8c607ec3a4c4cb6e59ee81a94cf8ff513d0b09565ad456c88a9e7250b

              SHA512

              ee82fb57af0dddf8f1acab855cda151d3eacb8e11b0adc3a81852c1e2d77a566aa630ff5dabd8c7bc92ebe78b6187cc823c8a4a645ca78ee88e2c27483080fbd

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

              Filesize

              247B

              MD5

              bf915cb73f6126d712c727039ad3d5e6

              SHA1

              73ff72a83711c90e45f8bd34505b3284fd2a870b

              SHA256

              3fd8eeaededa0a76d36df51803c01fe328ba110702a625b28c25bc83f6ef5940

              SHA512

              752387b92716e8e5296d24c532f16e17a955c8f02055c9fd66d4ff84c8f140d7f2a43cfbb4ff97bd5ba1eebc7fa0c215a9283a180a9598b1b413730d19db1957

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

              Filesize

              44KB

              MD5

              b25a2f925f955e3fea1ccf09d8d8927d

              SHA1

              9fe1bd1ded01bf866a0378022732a9d993719b3a

              SHA256

              aafd32e2593a5254f0c02e5a9a93b7bc1554d38ba0753a4cbb71f8f879d3462a

              SHA512

              378d65da3b5aceaa66c6bc42222a3adac8f316209daafc0bbd03cc766b86266048cd1c902422a0b61f78998ba4ab21cabb4aef8607be9eded3f683a48e117740

            • memory/1512-227-0x0000000000470000-0x0000000000490000-memory.dmp

              Filesize

              128KB

            • memory/1512-132-0x0000000000470000-0x0000000000490000-memory.dmp

              Filesize

              128KB

            • memory/1512-133-0x0000000000670000-0x0000000000673000-memory.dmp

              Filesize

              12KB

            • memory/3596-173-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-190-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-142-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-154-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-153-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-165-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-144-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-167-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-170-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-146-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-150-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-152-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-175-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-176-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-221-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-178-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-149-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-179-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-148-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-183-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-186-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-187-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-188-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-189-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-159-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-147-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-192-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-193-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-194-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-198-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-199-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-200-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-201-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-202-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-207-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-208-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-209-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-210-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-211-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-212-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-214-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-215-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB

            • memory/3596-220-0x00007FFFFDF70000-0x00007FFFFDFDE000-memory.dmp

              Filesize

              440KB