Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2022 04:03

General

  • Target

    8da8c8ef9d0f2c880c8d74def159fc068aaa9de8a315e342976ad1d26ca3089d.exe

  • Size

    54KB

  • MD5

    64470f77fc147ca77b908694c7705c03

  • SHA1

    b50e07c96dcbe00cce62e4b681a1604fccfb0168

  • SHA256

    8da8c8ef9d0f2c880c8d74def159fc068aaa9de8a315e342976ad1d26ca3089d

  • SHA512

    cd58ac19e5f371aae3ec394cd54d93d14a996428225e226766893081fdff99298bd7a41784f725810533d35666b46821fa086f47e16d1a93e081060dba8dc11f

  • SSDEEP

    1536:smL/ODyx+/DZZoKl5TvvYkP9fQQ57lDElNOg:bd+/DLoUTnYgKQLng

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
  • 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 32 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\8da8c8ef9d0f2c880c8d74def159fc068aaa9de8a315e342976ad1d26ca3089d.exe
    "C:\Users\Admin\AppData\Local\Temp\8da8c8ef9d0f2c880c8d74def159fc068aaa9de8a315e342976ad1d26ca3089d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3396
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s_g_l_209.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4084
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\redload\1.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2256
        • 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:3500
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3500 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4968
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
          4⤵
            PID:2812
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\redload\2.bat
            4⤵
            • Drops file in Program Files directory
            • Suspicious use of WriteProcessMemory
            PID:4076
            • 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:4564
            • 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:2664
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:1720
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4508
              • 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\redload\3.bat""" /f
                5⤵
                • Modifies registry class
                PID:2124
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\redload\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:1036
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\redload\tmp
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:1092
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\2.inf
                5⤵
                • Adds Run key to start application
                • Suspicious use of WriteProcessMemory
                PID:5048
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:4436
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:4952
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:2816
            • C:\Users\Admin\AppData\Local\Temp\inl52FF.tmp
              C:\Users\Admin\AppData\Local\Temp\inl52FF.tmp
              2⤵
              • Executes dropped EXE
              PID:4592
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\8DA8C8~1.EXE > nul
              2⤵
                PID:1072

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

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

              Filesize

              791B

              MD5

              1706b41fd446b5718a8419c0fcb35d55

              SHA1

              d9bb8df22acdc60c754ac14982cf795df3b1b815

              SHA256

              5c6d11ac3f220f8286455764ab2581dcb6554692d3b9974b097364d77edb3943

              SHA512

              68c9f6170ecdfcc79fc63cb646901d2ac52a915620b159047b2c93761c261897eb5ecc15065635105637a61a840d393104c15ea8268897fb8bb2fbc1a56c626e

            • C:\Users\Admin\AppData\Local\Temp\inl52FF.tmp

              Filesize

              57.2MB

              MD5

              03c8a9191985cf6276e6d1ba281894a5

              SHA1

              b6a0d09428ea53c31bfc73967f0fb2d068b24933

              SHA256

              02e7e9f22a75bd4451822385b9fac117133d4a8a2a379292b43badde8633e053

              SHA512

              99375224cb8d8ef97a494473cab574b722cfc91213051e4d20fa4b467cff92d5e1a1144fb41b0f216a0c3923bc0144777e2d17e17cb3986729f9780038b903af

            • C:\Users\Admin\AppData\Local\Temp\inl52FF.tmp

              Filesize

              57.2MB

              MD5

              03c8a9191985cf6276e6d1ba281894a5

              SHA1

              b6a0d09428ea53c31bfc73967f0fb2d068b24933

              SHA256

              02e7e9f22a75bd4451822385b9fac117133d4a8a2a379292b43badde8633e053

              SHA512

              99375224cb8d8ef97a494473cab574b722cfc91213051e4d20fa4b467cff92d5e1a1144fb41b0f216a0c3923bc0144777e2d17e17cb3986729f9780038b903af

            • C:\Users\Admin\AppData\Local\Temp\s_g_l_209.bat

              Filesize

              54B

              MD5

              504490369970f1c0eb580afbcdf91618

              SHA1

              b52f65cd538e6c998b2c7e3167f9c8e8fa6c7971

              SHA256

              a13a0579286521f0d7cb55fc7d28c6d33f14c0573e9e69f7584fa4008a8e7d43

              SHA512

              5495ce79abf0fc4ffbfaf9aefa484145f4e0d3e8457be0e2e4dfb1284fb5413016f2d9867e2386db5c4f7b51863bfffeae8ea6bd879053fdf6a928ab2a0857ad

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

              Filesize

              3KB

              MD5

              168976102055ae6902b5d251d4b39401

              SHA1

              37c28d5b4d19bf3ef0be7be04ac4b54c71866773

              SHA256

              aabf9954046b451c6287c18b37448dbce289b0a76bb0bcbe72b7e97b6ebfc9fc

              SHA512

              95474e88ce99544ab19d25c3f96b348b99733858b8382baeedce62748444b529e55c0c4df84c20ff05eb7b3172baaa22ade7604c7288b536e1895cd95dbc42a6

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

              Filesize

              410B

              MD5

              66a1f0147fed7ddd19e9bb7ff93705c5

              SHA1

              9d803c81ea2195617379b880b227892ba30b0bf6

              SHA256

              4f45ce85e221352f7fe26e04968c7f7267dc24b55cf2b72b929b4c90e48cb764

              SHA512

              cfe51756ddec75d240249980a4d27870d15983add25058e4d0da4d8a3ea11384d4d228d6cbc95091f91e516e1ab4dfb1e315941dbd95bf717d4b31936311d597

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

              Filesize

              3KB

              MD5

              428b15afd0f31b5f77d86f84a2e0bf36

              SHA1

              e76c640936f9ea1a4cf0f26e5417d4cbbde08ea2

              SHA256

              390a9eb07646fea162115045ea2b76a3a248d8823e7dc4a54851c39463ddfdb5

              SHA512

              3272917c8a65641eb39c280ba2f23c359145d8951ec78d803143fdbfa87cf6233a4d3a03607bcae7703f718dc592297aefc69726086a206e5d0bffd5655d8ca4

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

              Filesize

              248B

              MD5

              2197ffb407fb3b2250045c084f73b70a

              SHA1

              3d0efbacba73ac5e8d77f0d25d63fc424511bcf6

              SHA256

              a1a42f5a41ce65135b1ad525eabc04cce89ee07d2f51d06e5e1dea6047081591

              SHA512

              b35a99e144da3f02de71158f58a6b937435d1bce941126a554783c667654b880527b11ba8a5c0fcf093ce28863ea4f5e60f73f8f973a727f177d584d2e9c80fe

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

              Filesize

              5.8MB

              MD5

              88f9c9c6aa6234f44cd3cac4f14339b6

              SHA1

              df3eb5e3d88dd86cf588ca39eb3c97fe497b9930

              SHA256

              3ede42b65f0360774bdbc7fefcad54eaf5e186cd4ce76d4d30f8a952f8091ef3

              SHA512

              a8b5e12e1e37eca0f5777048a0440328eb6427f8876d22e0a405a82ee08fe1f86777955cc5bb366ca8c61dd030ed90c3fe0f661170456b5824d2a997de66981b

            • memory/3396-132-0x0000000000E10000-0x0000000000E35000-memory.dmp

              Filesize

              148KB

            • memory/3396-177-0x0000000000E10000-0x0000000000E35000-memory.dmp

              Filesize

              148KB

            • memory/3396-134-0x0000000000E10000-0x0000000000E35000-memory.dmp

              Filesize

              148KB

            • memory/3396-133-0x0000000000CC0000-0x0000000000CC3000-memory.dmp

              Filesize

              12KB

            • memory/3500-168-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-201-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-154-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-151-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-217-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-160-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-162-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-150-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-164-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-165-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-161-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-166-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-215-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-214-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-170-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-213-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-212-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-175-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-211-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-210-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-178-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-180-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-181-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-182-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-183-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-184-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-186-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-205-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-190-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-191-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-192-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-193-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-194-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-195-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-196-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-197-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-158-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-202-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-203-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB

            • memory/3500-204-0x00007FFBDC9A0000-0x00007FFBDCA0E000-memory.dmp

              Filesize

              440KB