Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2022 13:35

General

  • Target

    6229dc39e91493902b4149d6ec90224a9bafcc7cab1aeba6281a05c088af96b5.exe

  • Size

    140KB

  • MD5

    05eb77a0829b1fa8da3878eb28f9b9dd

  • SHA1

    38867d66416a58faed362c4e0b66212c1e48a090

  • SHA256

    6229dc39e91493902b4149d6ec90224a9bafcc7cab1aeba6281a05c088af96b5

  • SHA512

    49a327dc8d7ff4d803b2c014b66d948c331b9456a1ae994ecda6e96f3ddf857895890ab02288784eb45056f1c0fa66aded662a52806fe3477d8415ae4f23d4ef

  • SSDEEP

    1536:nnMg2OVLjlevyaRLBnLuRgiaUxRIxecePKH5nKLV+u:M0LpeTLlamiaUxRIxecePKQz

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\6229dc39e91493902b4149d6ec90224a9bafcc7cab1aeba6281a05c088af96b5.exe
    "C:\Users\Admin\AppData\Local\Temp\6229dc39e91493902b4149d6ec90224a9bafcc7cab1aeba6281a05c088af96b5.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3348
    • 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:3840
      • 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:3764
        • 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:3512
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3512 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2232
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\winzip\1.inf
          4⤵
            PID:1920
          • 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:2204
            • 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:1120
            • 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:1856
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:3364
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4872
              • 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:2036
              • 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:4608
              • 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:2720
              • 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:3320
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:4200
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:3380
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:3580
            • C:\Users\Admin\AppData\Local\Temp\inl35A3.tmp
              C:\Users\Admin\AppData\Local\Temp\inl35A3.tmp
              2⤵
              • Executes dropped EXE
              PID:4544
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\6229DC~1.EXE > nul
              2⤵
                PID:4060

            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

              0ef90204485649be625ea2be1b9018fb

              SHA1

              28fbc0852140ec51d0c097a4962a160afa4d754b

              SHA256

              c8028acd9a8c8c795b87cf835fc3182d003264608f161baa0ca020711b22bca0

              SHA512

              b8bbba0dcc6cb6f87efb47a605953c93fcf93c5a65520b822ebfee25754632d6bb66c2a946f457e1e40a92556683ddb9d14f2703782833e12d7e37bb3b7fcec5

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

              Filesize

              434B

              MD5

              75bcc1fb30ac2417ecbfa815cbc37d3b

              SHA1

              99819e2f9168f7d67754e9bb774cb27db8cccf76

              SHA256

              86a38855c194f2577d4a79783b16fb3688666ee9e4cb08639e7685528bf4009f

              SHA512

              e06296f45e7556fddbc4cb23db4d3c59751c336ed2982743ee2cede0cf408419d099238dd5ce2d125aa87c63360b0a9a8bca1264682caf13695028dce9820f2e

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

              Filesize

              1KB

              MD5

              13825a121416c9fdb4589b45f0409082

              SHA1

              bcc8d366c0645790b6e9a0a3e83f93c1982d4cf8

              SHA256

              6331736b25d3c65d180bdce3fa0ba3c682b8596a2eee3d685713012db3796a4e

              SHA512

              b606deb14da4ad0bb08b5575f678ec05a719310241b30744156951b73de8eb41e5aed0fe55dca4b4ce9d52fa01ddce6cc06acd6647d3d2758c12d27f31adf9ae

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

              Filesize

              1KB

              MD5

              3facc60dceffd752f284e286f4ceeb8a

              SHA1

              667ffb98ff425eeb8e3c4c85e0b9fee75cf76da4

              SHA256

              a0583d0e827c3e2aabdfb4e99d6ce78e06eac265bd85f339559433571853f56d

              SHA512

              26c16fd7d173aca60695d464035f639affbb0dcc74788b9246fa051a2bdcfa886e162014ff0eca751fcb90c84a17ab77bacfda1442249f4cbe6bb334c06ce317

            • C:\Users\Admin\AppData\Local\Temp\inl35A3.tmp

              Filesize

              57.2MB

              MD5

              c8493a26dc269c790b8b487e42cd982a

              SHA1

              2acc143ed22b215f273c3fe7ea148eff51a5657d

              SHA256

              f566959f9948229d1bb077f54f24e23bdf2700281a767499db280cad4d911aba

              SHA512

              e6022191dcf152fa8299c43a1fb8b50e6b6744c5bd580e413334285588d5299b0f6b5fd168d0d0c4e1d8805b67f5673f44163070627e5af7a22c34aa837a7769

            • C:\Users\Admin\AppData\Local\Temp\inl35A3.tmp

              Filesize

              57.2MB

              MD5

              c8493a26dc269c790b8b487e42cd982a

              SHA1

              2acc143ed22b215f273c3fe7ea148eff51a5657d

              SHA256

              f566959f9948229d1bb077f54f24e23bdf2700281a767499db280cad4d911aba

              SHA512

              e6022191dcf152fa8299c43a1fb8b50e6b6744c5bd580e413334285588d5299b0f6b5fd168d0d0c4e1d8805b67f5673f44163070627e5af7a22c34aa837a7769

            • 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

              107c8b11d42de66ca03c9652a0a5e816

              SHA1

              d15aa88be5f8598a1176bc44b61a1ff4ddad994a

              SHA256

              983bbbd815b6df24b580ed88232adb3efb8e81040aa4c3c8c328c409a989a637

              SHA512

              d83391591643d10fe7190f7cae2f4778f1ff2fb5229749b2a341527181fbf345e3b8cfb7b0f0d12232c0806b77195a2b714a2a82fdccd95801c7dd9bd73a1b47

            • memory/3348-132-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB

            • memory/3348-216-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB

            • memory/3348-133-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB

            • memory/3512-175-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-189-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-159-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-160-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-163-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-157-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-155-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-168-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-154-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-171-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-153-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-150-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-173-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-223-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-222-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-176-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-217-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-178-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-179-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-180-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-181-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-183-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-148-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-187-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-158-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-188-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-190-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-191-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-192-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-193-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-194-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-198-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-199-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-200-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-201-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-202-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-207-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-208-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-209-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-210-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-211-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-212-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB

            • memory/3512-214-0x00007FFBD5480000-0x00007FFBD54EE000-memory.dmp

              Filesize

              440KB