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
    04-10-2022 07:48

General

  • Target

    6984935bb50f57b20ed0403e84e287184755b97da84a364702c326ffb34d9527.exe

  • Size

    54KB

  • MD5

    04cd5cb39693d21c97c1a358f4b9eb73

  • SHA1

    e0c6104e7fb5405c6198a9865f347de521e4d90b

  • SHA256

    6984935bb50f57b20ed0403e84e287184755b97da84a364702c326ffb34d9527

  • SHA512

    e3504c9a08b61fb894ff6332ae7470eabbed3f7798fd31893c32dd27d189ba3ecfddb7bed58a22d9e5b1a90a37b5c13e1a1f6b2d76fe986eda08cca08d85e691

  • SSDEEP

    768:sVKm4GV4ujtuYgFC5IjezJckOyLb172+oEFZ0TORX3iSHWIwjkdLv/kcH5hUDrpN:sQKV1MyVckOG12TGX1HxwjkVnDhI+Hy

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
  • 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 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\6984935bb50f57b20ed0403e84e287184755b97da84a364702c326ffb34d9527.exe
    "C:\Users\Admin\AppData\Local\Temp\6984935bb50f57b20ed0403e84e287184755b97da84a364702c326ffb34d9527.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\start_max_bat.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\redload\1.bat
        3⤵
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:3148
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
          4⤵
          • Modifies Internet Explorer settings
          • Modifies Internet Explorer start page
          PID:4404
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?S"" /f
          4⤵
          • Modifies Internet Explorer settings
          • Modifies Internet Explorer start page
          PID:4852
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
          4⤵
            PID:4276
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
            4⤵
            • Modifies registry class
            PID:4084
          • 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
            4⤵
            • Modifies registry class
            PID:4492
          • C:\Windows\SysWOW64\attrib.exe
            attrib +s +h C:\Users\Admin\AppData\Roaming\redload\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
            4⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:60
          • C:\Windows\SysWOW64\attrib.exe
            attrib +s +h C:\Users\Admin\AppData\Roaming\redload\tmp
            4⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:4764
          • C:\Windows\SysWOW64\rundll32.exe
            rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\2.inf
            4⤵
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:4612
            • C:\Windows\SysWOW64\runonce.exe
              "C:\Windows\system32\runonce.exe" -r
              5⤵
              • Checks processor information in registry
              • Suspicious use of WriteProcessMemory
              PID:1152
              • C:\Windows\SysWOW64\grpconv.exe
                "C:\Windows\System32\grpconv.exe" -o
                6⤵
                  PID:4608
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 D:\VolumeDH\inj.dat,MainLoad
              4⤵
                PID:740
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\redload\2.bat
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:4844
                • C:\PROGRA~1\INTERN~1\iexplore.exe
                  C:\PROGRA~1\INTERN~1\IEXPLORE.EXE http://www.cnkankan.com/?82133
                  5⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of FindShellTrayWindow
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:3536
                  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3536 CREDAT:17410 /prefetch:2
                    6⤵
                    • Modifies Internet Explorer settings
                    • Suspicious use of SetWindowsHookEx
                    PID:4008
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
                  5⤵
                    PID:3856
            • C:\Users\Admin\AppData\Local\Temp\inl51B7.tmp
              C:\Users\Admin\AppData\Local\Temp\inl51B7.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4452
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl51B7.tmp > nul
                3⤵
                  PID:756
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\698493~1.EXE > nul
                2⤵
                  PID:4628

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\PROGRA~1\INTERN~1\IEFRAME.dll

                Filesize

                5.8MB

                MD5

                84e9dc5f2c2766531b58f0fae294eedd

                SHA1

                c5c0bfacf0b05268069c091364ef70f1580d7556

                SHA256

                92a59844e7fc6ae4285a295edbc46db6b4f791d6a152c8e45cda6e094d0cdf86

                SHA512

                13a9011c8aa50fe34556149ee2b1713d3c760b6cf6088f699bb9e518e2941ddea53047f238bfc3e5861ba762e06145003aeb771af655f7ee1df8c1673f7f1c97

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

                Filesize

                471B

                MD5

                afc3e2584b32e1e7c23c33e9534089a5

                SHA1

                ea4e2266d010c300621d2287ea60fe3e9a9ee753

                SHA256

                61597f5f937da250a5ed7b4b82867bebc546a5a35c0029982a003b1e9cbd2e7e

                SHA512

                f0e0d20b15bc390292baf0d93d982315afc466ccd2d4e48152ed65af97aed573d5b9e65b2b50925cbcd2e736955dfec4f63de5739cdb1499eb2db5dfc3cc4fe6

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

                Filesize

                404B

                MD5

                c0d23eae45f846e5d8561848c07f9ce4

                SHA1

                6ff198d9684c293606dd502904960eb0e9aacc6a

                SHA256

                143e3118140c57fd5af48d1f95d65037a4dc715a857a82305a7fdcc4b2886b7e

                SHA512

                3181d090a6a3e8c58ba74e6614ddb65b122074923fd46d02212c4abcf8bf8e171474c0f612687e00ae5b31316feae6ee6fdc16942572162aa6f510a96a4fbade

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

                Filesize

                1KB

                MD5

                3a88892f09f07f6a63788d3dd94a2884

                SHA1

                483f569ce8efee152778df90430d7b220a1a6ffe

                SHA256

                a4650b1333e0133035a5cdde5a0eb9f744204f5b3993f859a8cceb72662a7ba0

                SHA512

                6ca6c7608f6b72f22ae2b60be306450aa6e6973684aa919caff07974451879b286a4ef055d1c49cc2c03be0a72b7ceb86300b9a6f12afaa7cc9e15aabe2f0c44

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

                Filesize

                791B

                MD5

                1706b41fd446b5718a8419c0fcb35d55

                SHA1

                d9bb8df22acdc60c754ac14982cf795df3b1b815

                SHA256

                5c6d11ac3f220f8286455764ab2581dcb6554692d3b9974b097364d77edb3943

                SHA512

                68c9f6170ecdfcc79fc63cb646901d2ac52a915620b159047b2c93761c261897eb5ecc15065635105637a61a840d393104c15ea8268897fb8bb2fbc1a56c626e

              • C:\Users\Admin\AppData\Local\Temp\inl51B7.tmp

                Filesize

                57.2MB

                MD5

                4afa04747d795a4e0efa6a7e0a4020bf

                SHA1

                f8911c37990d663442ac93773fa1e1d6e92b40fe

                SHA256

                a7fe3ff9d43ec742cb42af7d24fc99bb170e21611faba4567b19b3dbcdc2be09

                SHA512

                200ec1c0df01757617b14f903453bb23983f3e6d1552377ebe6bceaa0dc2f0202ebddb8714aa55eb04d274ee388d4478ffa247c7389625d9ef470c11eaf3bc51

              • C:\Users\Admin\AppData\Local\Temp\inl51B7.tmp

                Filesize

                57.2MB

                MD5

                4afa04747d795a4e0efa6a7e0a4020bf

                SHA1

                f8911c37990d663442ac93773fa1e1d6e92b40fe

                SHA256

                a7fe3ff9d43ec742cb42af7d24fc99bb170e21611faba4567b19b3dbcdc2be09

                SHA512

                200ec1c0df01757617b14f903453bb23983f3e6d1552377ebe6bceaa0dc2f0202ebddb8714aa55eb04d274ee388d4478ffa247c7389625d9ef470c11eaf3bc51

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

                Filesize

                54B

                MD5

                504490369970f1c0eb580afbcdf91618

                SHA1

                b52f65cd538e6c998b2c7e3167f9c8e8fa6c7971

                SHA256

                a13a0579286521f0d7cb55fc7d28c6d33f14c0573e9e69f7584fa4008a8e7d43

                SHA512

                5495ce79abf0fc4ffbfaf9aefa484145f4e0d3e8457be0e2e4dfb1284fb5413016f2d9867e2386db5c4f7b51863bfffeae8ea6bd879053fdf6a928ab2a0857ad

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

                Filesize

                3KB

                MD5

                493c22f6b15f9766ae7c23794fc77da0

                SHA1

                43723ba660dbc1486f717441b58298d33b9f2048

                SHA256

                478b8c2f0dc23db49d62f987ca5e01afde54d7abff647894ad2e38f9d7fde182

                SHA512

                662644aeef7666b23b90b6ce08ea8271a7cb7379bad6920434d045fdcbbcd48b4bbb65620ac4a5c347e376ecf2ff60e115b869c74a28ca7776cf6fc83b01df34

              • 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

                91021ae32041b75ac23d771886a3f1d3

                SHA1

                4561c05fab3b76719a37bc5f3ea55547f83d08fa

                SHA256

                4a904bd6890d51978ea8d9ef9364d9e2d794a89d8398331704a19588afaa470e

                SHA512

                e6f6eb0efc94f5e9c37be3272fedabc93ab0e63bd0572bc95b5d8d98b4d9650a2dfe97999fb473f9100dc49d78809571b6c62478372b7ded2eead446e54e2b5d

              • 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

                84e9dc5f2c2766531b58f0fae294eedd

                SHA1

                c5c0bfacf0b05268069c091364ef70f1580d7556

                SHA256

                92a59844e7fc6ae4285a295edbc46db6b4f791d6a152c8e45cda6e094d0cdf86

                SHA512

                13a9011c8aa50fe34556149ee2b1713d3c760b6cf6088f699bb9e518e2941ddea53047f238bfc3e5861ba762e06145003aeb771af655f7ee1df8c1673f7f1c97

              • memory/3536-173-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-187-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-224-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-223-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-218-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-217-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-215-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-214-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-213-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-161-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-162-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-212-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-164-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-166-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-167-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-169-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-211-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-170-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-171-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-172-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-210-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-175-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-176-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-178-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-179-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-180-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-181-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-182-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-184-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-185-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-205-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-190-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-191-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-192-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-193-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-194-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-195-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-196-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-197-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-201-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-202-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-203-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3536-204-0x00007FF80AE50000-0x00007FF80AEBE000-memory.dmp

                Filesize

                440KB

              • memory/3716-230-0x0000000000680000-0x00000000006A5000-memory.dmp

                Filesize

                148KB

              • memory/3716-132-0x0000000000680000-0x00000000006A5000-memory.dmp

                Filesize

                148KB

              • memory/3716-133-0x0000000000EC0000-0x0000000000EC3000-memory.dmp

                Filesize

                12KB

              • memory/3716-134-0x0000000000EC0000-0x0000000000EC3000-memory.dmp

                Filesize

                12KB

              • memory/3716-135-0x0000000000680000-0x00000000006A5000-memory.dmp

                Filesize

                148KB