Analysis

  • max time kernel
    162s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2022 00:52

General

  • Target

    b43e2d18e524d7eef5e89f5c40b9f3f5c13785d860f4c4aad0df025a18363d01.exe

  • Size

    54KB

  • MD5

    a0bbbea98ddbea59cbb3b8e7c33dcb3e

  • SHA1

    93c0b5eaf9856cd098b7fd31682af944ea014948

  • SHA256

    b43e2d18e524d7eef5e89f5c40b9f3f5c13785d860f4c4aad0df025a18363d01

  • SHA512

    46ea5856374f70d81097a02cedf8667e12a62d311bc98292f11ed997ddde546f80aac4e93a151e1705490572c2894149c1a6efaf8808cfd86f203ba27174a766

  • SSDEEP

    1536:BLiSTK2DKfhw/kmBjMEWt1gKWSgfcmjxWNGl:BLiST9D2CMmBoE+gKOfnjJl

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 48 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\b43e2d18e524d7eef5e89f5c40b9f3f5c13785d860f4c4aad0df025a18363d01.exe
    "C:\Users\Admin\AppData\Local\Temp\b43e2d18e524d7eef5e89f5c40b9f3f5c13785d860f4c4aad0df025a18363d01.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s_Mg_l_219.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4488
      • 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:2560
        • 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:1276
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1276 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4140
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
          4⤵
            PID:3464
          • 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:3276
            • 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:3184
            • 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:2256
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:1088
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:2332
              • 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:4364
              • 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:3128
              • 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:2960
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 D:\VolumeDH\inj.dat,MainLoad
                5⤵
                  PID:4880
                • 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:540
          • C:\Users\Admin\AppData\Local\Temp\inlBB2F.tmp
            C:\Users\Admin\AppData\Local\Temp\inlBB2F.tmp
            2⤵
            • Executes dropped EXE
            • Checks computer location settings
            PID:1864
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B43E2D~1.EXE > nul
            2⤵
              PID:3132
          • C:\Windows\SysWOW64\runonce.exe
            "C:\Windows\system32\runonce.exe" -r
            1⤵
            • Checks processor information in registry
            • Suspicious use of WriteProcessMemory
            PID:3264
            • C:\Windows\SysWOW64\grpconv.exe
              "C:\Windows\System32\grpconv.exe" -o
              2⤵
                PID:4620

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

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

              Filesize

              471B

              MD5

              deabbdcb221537d48aed54816739f367

              SHA1

              9ce0f0d21d9bd08823732047e19edbbd909396bc

              SHA256

              494de69d83714780f68a1e6871716f3a4a10835e90b4f96e48610c3e8f39e9cf

              SHA512

              95a80c34ddb83e74e51e5d0884dc7433de78b956db8fb2b1fb54e0f158283991edacafd3e7653161767a69f25f9cf537cc1a654d20e3f27bbc54588b3b4bf5e8

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

              Filesize

              434B

              MD5

              4d0b8b2d977aaec4f3b64d86f38b9962

              SHA1

              a3eb00f5399b3ec8ea91e8f2822d765a383224b2

              SHA256

              d0b551d995d48cd29033962f6a402c1bf16925f082d34465c2250ed76c22f8ff

              SHA512

              da11cc3cfa30cc9d82de34b536f2955807b5a0f0c9cb57fa7f0bc70c32d29cbdd5949b66b75c086698c9c7f115bcc2c3394c000ade5a8438c6bdc9a65b4fd5ed

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

              Filesize

              434B

              MD5

              56aabb2dc786292cc1d721c52acd95ce

              SHA1

              e9f752a9bef0b996265fbab81b597fa07e83c043

              SHA256

              81556ab29ef4bc0e2c55dc254842835d55c5086571b5652b07c57b74b846c6e5

              SHA512

              e867ec831fef37085c30dbdc895bf62adafe60901533207c9f706218909b6e4bb1c87253d579b565d8b3552a9981333342b5f8a3b8c80100bdd5408c38536122

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

              Filesize

              791B

              MD5

              1706b41fd446b5718a8419c0fcb35d55

              SHA1

              d9bb8df22acdc60c754ac14982cf795df3b1b815

              SHA256

              5c6d11ac3f220f8286455764ab2581dcb6554692d3b9974b097364d77edb3943

              SHA512

              68c9f6170ecdfcc79fc63cb646901d2ac52a915620b159047b2c93761c261897eb5ecc15065635105637a61a840d393104c15ea8268897fb8bb2fbc1a56c626e

            • C:\Users\Admin\AppData\Local\Temp\inlBB2F.tmp

              Filesize

              57.2MB

              MD5

              98cf71925307c1f56e2de0d5188f3525

              SHA1

              1e0e1036b40ed194bf714bd333792a84b4ad975e

              SHA256

              8676b964d02a0c51dc645882b0d7669a61a17b7b5ce20892ef86e66be5eafe59

              SHA512

              16b8ca0b1847cfd8fc36de18a414c55998f9f05977553dd338be8a5243f2a62cd95e939e5a73e5de0aa69d3b6c0631a91fd14498487eb0360ff7cdd5644bd3c8

            • C:\Users\Admin\AppData\Local\Temp\inlBB2F.tmp

              Filesize

              57.2MB

              MD5

              98cf71925307c1f56e2de0d5188f3525

              SHA1

              1e0e1036b40ed194bf714bd333792a84b4ad975e

              SHA256

              8676b964d02a0c51dc645882b0d7669a61a17b7b5ce20892ef86e66be5eafe59

              SHA512

              16b8ca0b1847cfd8fc36de18a414c55998f9f05977553dd338be8a5243f2a62cd95e939e5a73e5de0aa69d3b6c0631a91fd14498487eb0360ff7cdd5644bd3c8

            • C:\Users\Admin\AppData\Local\Temp\s_Mg_l_219.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

              e0bb1632cb60e78653f21fac4b5e944d

              SHA1

              016672e9001147296f0c271f5ac63ae73076b75a

              SHA256

              abbaf8345974944e7aaf17c3fb116eaf740881b68fa891b28fc7d305b3867c4a

              SHA512

              1e5b485bec1a029ad59db99500ce58d2599973f55c7292208265e333ff16af486b03aaba3dc8187f350684a11fbdf4627fcd2e9a23a280faac7d6a5c6d00c488

            • memory/1276-177-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-189-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-150-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-152-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-154-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-229-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-228-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-159-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-163-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-164-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-165-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-227-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-224-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-226-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-223-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-222-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-157-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-167-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-221-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-220-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-169-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-172-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-175-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-174-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-218-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-217-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-179-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-181-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-182-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-215-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-216-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-214-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-187-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-213-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-180-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-192-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-193-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-194-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-195-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-196-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-208-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-198-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-199-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-200-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-204-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-205-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-206-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/1276-207-0x00007FFB3D5E0000-0x00007FFB3D64E000-memory.dmp

              Filesize

              440KB

            • memory/2080-135-0x0000000000FC0000-0x0000000000FE5000-memory.dmp

              Filesize

              148KB

            • memory/2080-137-0x0000000000FC0000-0x0000000000FE5000-memory.dmp

              Filesize

              148KB

            • memory/2080-136-0x0000000000080000-0x0000000000083000-memory.dmp

              Filesize

              12KB

            • memory/2080-171-0x0000000000FC0000-0x0000000000FE5000-memory.dmp

              Filesize

              148KB