Analysis

  • max time kernel
    152s
  • 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
    31-10-2022 00:52

General

  • Target

    737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80.exe

  • Size

    54KB

  • MD5

    a150dc1f94f1702ccf642addc469e1f8

  • SHA1

    bfaa02b36c3db772906bef8baf8f40a33724f998

  • SHA256

    737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80

  • SHA512

    5274a52992903b7bb30330e362b9b2209f1492eb657da68311c3c20fb609a8bf5603d3659215ed11ffc4964a2f18b07d50e28bcb50c3f9aa5b8ecdacdb25653c

  • SSDEEP

    1536:BLiSTK2DKfhw/kmBjMEWt1gKWSgfcmjxWNGe:BLiST9D2CMmBoE+gKOfnjJe

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 46 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80.exe
    "C:\Users\Admin\AppData\Local\Temp\737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2868
    • 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:332
      • 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:3164
        • 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:4236
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4236 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1808
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
          4⤵
            PID:3344
          • 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:3100
            • 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:3628
            • 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:3572
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:2156
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4000
              • 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:2544
              • 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:1012
              • 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:2496
              • 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:4128
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:2284
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:3224
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:4164
            • C:\Users\Admin\AppData\Local\Temp\inl57F1.tmp
              C:\Users\Admin\AppData\Local\Temp\inl57F1.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3860
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl57F1.tmp > nul
                3⤵
                  PID:2544
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\737F45~1.EXE > nul
                2⤵
                  PID:4544

              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

                deabbdcb221537d48aed54816739f367

                SHA1

                9ce0f0d21d9bd08823732047e19edbbd909396bc

                SHA256

                494de69d83714780f68a1e6871716f3a4a10835e90b4f96e48610c3e8f39e9cf

                SHA512

                95a80c34ddb83e74e51e5d0884dc7433de78b956db8fb2b1fb54e0f158283991edacafd3e7653161767a69f25f9cf537cc1a654d20e3f27bbc54588b3b4bf5e8

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

                Filesize

                434B

                MD5

                f99c2dc65bd9f814583829c7f64bf97d

                SHA1

                7b3a23d259ff8e72fae1f7ad6750710d0d028389

                SHA256

                bb554591041ed77347b3789fca163c307650484645d1fab5b6c3789ad1a2ae30

                SHA512

                300a19ae4b987c6fa016cbc734bc3babba1cfdd74bb9678abbbf7b21c6c620a4bb6f47dd09326cc465c77b37b8d7bcc7a23fcf60c977fff3c5e2c33b0310b71e

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

                Filesize

                791B

                MD5

                1706b41fd446b5718a8419c0fcb35d55

                SHA1

                d9bb8df22acdc60c754ac14982cf795df3b1b815

                SHA256

                5c6d11ac3f220f8286455764ab2581dcb6554692d3b9974b097364d77edb3943

                SHA512

                68c9f6170ecdfcc79fc63cb646901d2ac52a915620b159047b2c93761c261897eb5ecc15065635105637a61a840d393104c15ea8268897fb8bb2fbc1a56c626e

              • C:\Users\Admin\AppData\Local\Temp\inl57F1.tmp

                Filesize

                57.2MB

                MD5

                71064b78a139f5710ddff945ab338fc0

                SHA1

                7c9bdbd40f0f9c8c162fac8976de800660e97956

                SHA256

                4eef2ee7980d3cb53560e71576217442197a375e270c9b52b94bc7234c7c595f

                SHA512

                ff51f5cfbf6078b27c7140e79a9b9531d61bd5791b08f40efd4243ce384ec0e90fe8e49d1d3e384efadb422d9945c02916ac62d6b307cdb21c173e1147739c1c

              • C:\Users\Admin\AppData\Local\Temp\inl57F1.tmp

                Filesize

                57.2MB

                MD5

                71064b78a139f5710ddff945ab338fc0

                SHA1

                7c9bdbd40f0f9c8c162fac8976de800660e97956

                SHA256

                4eef2ee7980d3cb53560e71576217442197a375e270c9b52b94bc7234c7c595f

                SHA512

                ff51f5cfbf6078b27c7140e79a9b9531d61bd5791b08f40efd4243ce384ec0e90fe8e49d1d3e384efadb422d9945c02916ac62d6b307cdb21c173e1147739c1c

              • 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

                b77267c3cb279d7f8c007bf620e07003

                SHA1

                13cbd429f141ebdc70a21c7ebe5cb6cb71f2f1ad

                SHA256

                49468098af2e29323b0c5caca7809c33b0e0f83d4ddad514b1bd63216ab2565a

                SHA512

                a9d9b6826553952c913ff8325c24cc0205cb7644c6216702bf905f1b9ceedfd500ba41ee6c01df92e1844677b3b9230458fc2e24bfbe560c221a0f7066683d3c

              • memory/2868-162-0x00000000005F0000-0x0000000000615000-memory.dmp

                Filesize

                148KB

              • memory/2868-133-0x0000000000580000-0x0000000000583000-memory.dmp

                Filesize

                12KB

              • memory/2868-134-0x0000000000580000-0x0000000000583000-memory.dmp

                Filesize

                12KB

              • memory/2868-135-0x00000000005F0000-0x0000000000615000-memory.dmp

                Filesize

                148KB

              • memory/2868-132-0x00000000005F0000-0x0000000000615000-memory.dmp

                Filesize

                148KB

              • memory/4236-169-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-194-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-168-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-170-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-165-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-171-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-161-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-174-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-164-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-177-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-163-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-160-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-181-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-182-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-183-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-184-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-185-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-187-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-189-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-190-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-191-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-192-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-166-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-195-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-196-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-197-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-198-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-202-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-203-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-204-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-205-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-206-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-211-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-212-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-213-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-214-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-215-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-216-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-218-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-219-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-224-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-225-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-157-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB

              • memory/4236-152-0x00007FFA6E6F0000-0x00007FFA6E75E000-memory.dmp

                Filesize

                440KB