Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 00:01

General

  • Target

    a696e5fd34a8b4f248b02ad726dccfba1ab5e02acd533dad241b0e17112bbd39.exe

  • Size

    54KB

  • MD5

    a995678fc6a7b765fe5e8d5cdf8bb424

  • SHA1

    07e1f77ecbf8334305375feffcdc34a3f79c9ff8

  • SHA256

    a696e5fd34a8b4f248b02ad726dccfba1ab5e02acd533dad241b0e17112bbd39

  • SHA512

    cecc70c717c2bc3e5f5fbcbc4f8316d86b10b95c26c0662ccadc6551c4f30340752a6b0b7004330bcc4424995dc9b99eaa70fa7a1a6997fcf8bbe17e67b035a2

  • SSDEEP

    768:7HLiSTFE124rYp175AydSeq/ZWHGWlyw3TmiQKx4puSI3LVC9dBMYaeXmg+:zLiSTK29pwydSeqEHGWnxII3ZWGeXmg+

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 57 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\a696e5fd34a8b4f248b02ad726dccfba1ab5e02acd533dad241b0e17112bbd39.exe
    "C:\Users\Admin\AppData\Local\Temp\a696e5fd34a8b4f248b02ad726dccfba1ab5e02acd533dad241b0e17112bbd39.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4988
    • 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:2320
      • 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:32
        • C:\PROGRA~1\INTERN~1\iexplore.exe
          C:\PROGRA~1\INTERN~1\IEXPLORE.EXE http://www.cnkankan.com/?71628
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3760
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3760 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3036
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
          4⤵
            PID:3584
          • 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:3892
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.71628.com/?S"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:4128
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.71628.com/?S"" /f
              5⤵
                PID:4884
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.71628.com/?S"" /f
                5⤵
                • Modifies Internet Explorer settings
                • Modifies Internet Explorer start page
                PID:5092
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:1892
              • 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:4272
              • 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:4944
              • 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:756
              • 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:3532
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:4468
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:2532
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:1680
            • C:\Users\Admin\AppData\Local\Temp\inlB2B8.tmp
              C:\Users\Admin\AppData\Local\Temp\inlB2B8.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1468
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inlB2B8.tmp > nul
                3⤵
                  PID:4936
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A696E5~1.EXE > nul
                2⤵
                  PID:824

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\69C6F6EC64E114822DF688DC12CDD86C

                Filesize

                631B

                MD5

                5a813454bd2cb5e3321c9e5fecb5056c

                SHA1

                02937703479e284dd6638fbadfa33cc45ac34c28

                SHA256

                100e233f4d4e190240ff52081ca861c222505cf10367ff633494061f7763f4ec

                SHA512

                98ab39f780f2670401926087211ddf66f120a3cb142cfdaa454f3c14c32a0c66cfeac91cc7333be93b0513796b67f9cbd63316b65bc31d5acca099ae45d1e7e2

              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\69C6F6EC64E114822DF688DC12CDD86C

                Filesize

                240B

                MD5

                636b41069b863650af7754ca857c3f29

                SHA1

                ba064aeea137e96100e6edc6ce62ddc95a5d1f03

                SHA256

                a0138536c85e68b131e8996b586db25d78d34353f85274e6d45539b80488b264

                SHA512

                c9ac91b952eded4cf7b6b7c333b98ac7caf29bcd785dcdbbb452f6a8801f0a245d5f918f33f9c7cd4c4e7daac08637618ce4bc52dc45769a3845d11fab04ba16

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

                Filesize

                1KB

                MD5

                02ce26dbc6b7f2000f17755ca75cfe4d

                SHA1

                f058d22e187e7fa32fdd6ceb0a75e389db4a6dfe

                SHA256

                2ce4c1ca43bd240c9cf7c3c1e692aa540ceb2ee0cd9c0a621d5de1fe4f47902b

                SHA512

                99d7e9a15782a32aa5d5a6a0070176a66afb157f9339ec69d01b5597a59bd84ee3588e01b6bb2e6b9709e96bc552c3a1735e49d2fe96dcd534756cf1be317816

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

                Filesize

                790B

                MD5

                b18422bf438bbb7798280375a7bc0976

                SHA1

                c1b77b35e3a38ff2ad119f25e548beb5ff68c2e2

                SHA256

                ee8709e751067193dccdfe218108bdae6a30919d7b6c860bc848c7cc4b242fa4

                SHA512

                23cb9c74905f514a2bf4ef91afc53ceb08230b3ce68e3eab17bb36c674260d143a7e7105958ff4ed5c2a416bddffb3c7e28dcf8060cbf323c7e4cab71f613176

              • C:\Users\Admin\AppData\Local\Temp\inlB2B8.tmp

                Filesize

                57.2MB

                MD5

                c7880b59de9107715adb9d063b22bc3e

                SHA1

                f004e337f103401e778ef4523c11342006a0e4e0

                SHA256

                7ec55f92d1da30cfd342fc9845f3879f2983447cc2d7228c022f85b258037427

                SHA512

                d38ba04524362fa1e23d991848ff548223bf0ed0ecef27d316dcf15c177f035522701165ce91e672d5783889837ae1ddcd4c4431a07f45bd64301e33eaf833cd

              • C:\Users\Admin\AppData\Local\Temp\inlB2B8.tmp

                Filesize

                57.2MB

                MD5

                c7880b59de9107715adb9d063b22bc3e

                SHA1

                f004e337f103401e778ef4523c11342006a0e4e0

                SHA256

                7ec55f92d1da30cfd342fc9845f3879f2983447cc2d7228c022f85b258037427

                SHA512

                d38ba04524362fa1e23d991848ff548223bf0ed0ecef27d316dcf15c177f035522701165ce91e672d5783889837ae1ddcd4c4431a07f45bd64301e33eaf833cd

              • 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

                b13d4a59d37d8c293276a4c428ad5659

                SHA1

                710bfa65cfd533b78c564e15e0bbe954e9265ecf

                SHA256

                3aea9dee221648916706758561e23796b2325e4019b28a3070fe2fd8d1d4ed28

                SHA512

                8cb3aec7463cf7d14f333bb9257f03c7f7491f4da4fea3311e505f99b9f6797f0aa3f689355a6625d9f104b8511f7e75218b4c2fdd7f9ac96927d7aa4a6ed0ba

              • 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

                185a49cc37f1724dc196f67c42a76340

                SHA1

                27fde7b9ba462fc36ba5705832ae44b454d718cf

                SHA256

                3fe8fbf78cb9855c0cc663dda80354318fb2c7ef1dc4d378c98bb1383015140d

                SHA512

                97ee31a378404bae99616a057ddbed8450f56bfd5d0508b4cc3b864e73aa5d8d1f15b21c82ed3570494603ac90bb7cee1b8cbdae9d935bb1ddb71264004e4c22

              • 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

                50369bf2422ae348cda5089b345f652e

                SHA1

                73dfb1084921f487a08e5a6333ef9b56d72f2841

                SHA256

                436903395303bd91e94976f1a3f8292c14803fc0d60f4cf2937c57b5580cf543

                SHA512

                880b6b4c8f011d314c2c9e3f5053c4a480984eab62ca3d533e8903364ceea8f5326174c5044fd9796c2c5c4ef9dac645421119950a07ed26113b8ef19719df84

              • memory/3760-185-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-209-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-159-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-160-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-224-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-162-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-223-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-164-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-165-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-166-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-148-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-157-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-169-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-218-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-172-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-217-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-147-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-145-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-141-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-154-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-143-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-176-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-182-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-183-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-184-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-151-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-186-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-187-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-211-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-212-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-181-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-192-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-197-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-150-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-215-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-214-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-202-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-198-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-203-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-188-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-204-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-153-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-156-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/3760-213-0x00007FFEEF3F0000-0x00007FFEEF45E000-memory.dmp

                Filesize

                440KB

              • memory/4988-133-0x00000000007D0000-0x00000000007D3000-memory.dmp

                Filesize

                12KB

              • memory/4988-191-0x0000000000240000-0x0000000000265000-memory.dmp

                Filesize

                148KB

              • memory/4988-134-0x0000000000240000-0x0000000000265000-memory.dmp

                Filesize

                148KB

              • memory/4988-132-0x0000000000240000-0x0000000000265000-memory.dmp

                Filesize

                148KB