Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2022 07:49

General

  • Target

    554ea8dd0b5c858d3ef3c4fdd0203c478320d6a6f616b5341e94a43a946185f7.exe

  • Size

    54KB

  • MD5

    93c6f20dd0a3d06f910526dc04c87587

  • SHA1

    77557d5dc3405bb68a9ca22dbd4693f17d0e3b46

  • SHA256

    554ea8dd0b5c858d3ef3c4fdd0203c478320d6a6f616b5341e94a43a946185f7

  • SHA512

    452c17c072da8a424a85af0724117defc04e4d40f61a4aef52570e23cdcb7df8374ce6e6ab24872d2fd6f914dac58d44e0c40fe6abaec76c6f13244c470988ee

  • SSDEEP

    768:sVKm4GV4ujtuYgFC5IjezJckOyLb172+oEFZ0TORX3iSHWIwjkdLv/kcH5hUDrph:sQKV1MyVckOG12TGX1HxwjkVnDhI+HS

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 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\554ea8dd0b5c858d3ef3c4fdd0203c478320d6a6f616b5341e94a43a946185f7.exe
    "C:\Users\Admin\AppData\Local\Temp\554ea8dd0b5c858d3ef3c4fdd0203c478320d6a6f616b5341e94a43a946185f7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4976
    • 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:1004
      • 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:4668
        • 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:816
        • 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:396
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
          4⤵
            PID:1736
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
            4⤵
            • Modifies registry class
            PID:3648
          • 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:3116
          • 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:1052
          • 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:4172
          • 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:4760
            • C:\Windows\SysWOW64\runonce.exe
              "C:\Windows\system32\runonce.exe" -r
              5⤵
              • Checks processor information in registry
              • Suspicious use of WriteProcessMemory
              PID:4700
              • C:\Windows\SysWOW64\grpconv.exe
                "C:\Windows\System32\grpconv.exe" -o
                6⤵
                  PID:4504
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 D:\VolumeDH\inj.dat,MainLoad
              4⤵
                PID:4720
              • 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:2216
                • 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:3268
                  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3268 CREDAT:17410 /prefetch:2
                    6⤵
                    • Modifies Internet Explorer settings
                    • Suspicious use of SetWindowsHookEx
                    PID:2144
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\redload\1.inf
                  5⤵
                    PID:956
            • C:\Users\Admin\AppData\Local\Temp\inl5E1B.tmp
              C:\Users\Admin\AppData\Local\Temp\inl5E1B.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4756
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl5E1B.tmp > nul
                3⤵
                  PID:3144
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\554EA8~1.EXE > nul
                2⤵
                  PID:4716

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

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

                Filesize

                5.8MB

                MD5

                a15a583b04bf8428a074f49bcf23a08d

                SHA1

                b33a573fe60ccc339eaaec82865ab23b872d328e

                SHA256

                4f87d823f69798d311305d5b31d1875d95969ab0a2baf3028e13382743cbeba8

                SHA512

                d753fade0479914033320d37cc6b2eadbb95d46626f000314e4a496bf0a0685e5e50f0b17bf775028ccd34527e2fa10fec89daf4dd4b58cdd74a11cf2ae8b633

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

                Filesize

                471B

                MD5

                5ddb1febcd291eb59d3d67d24a05bfd0

                SHA1

                fe957affe27cb991f332e7f5c86d3a15359bd3b9

                SHA256

                ec45a385c906b3d925ebbe6532d10adec9a14c1733c756c64db5133bd9d88dcb

                SHA512

                62d00893402fae125ae3428da2495b0eb864b125f975cd887f894f7298a4a86f361cf50aaa7c9b69f3dcb734a950c43472778ea4062b3146c3de5623d08dcd21

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

                Filesize

                434B

                MD5

                d0da29d7c93879fd8ea002bdc6a87d7a

                SHA1

                cdacf8f3d03d448a84c55e9613b474e443104f96

                SHA256

                21d3c0ba33ff404b907c20da44ca6fdbf719bd2bf0cc4544dc3c56728a93b3f3

                SHA512

                9558675cf58fe0746c2ed85df6998106b492603476b08e47e36ec564a2e141c5e386b198bc6fd635400c08e243b80c279fc1c393ea2f10d6d40137210c00e051

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

                Filesize

                791B

                MD5

                1706b41fd446b5718a8419c0fcb35d55

                SHA1

                d9bb8df22acdc60c754ac14982cf795df3b1b815

                SHA256

                5c6d11ac3f220f8286455764ab2581dcb6554692d3b9974b097364d77edb3943

                SHA512

                68c9f6170ecdfcc79fc63cb646901d2ac52a915620b159047b2c93761c261897eb5ecc15065635105637a61a840d393104c15ea8268897fb8bb2fbc1a56c626e

              • C:\Users\Admin\AppData\Local\Temp\inl5E1B.tmp

                Filesize

                57.2MB

                MD5

                bb2488f8b2cc11f494c4e1d164e85016

                SHA1

                5a2f746ff3b96b4cbf59c66de525717a6ffcd1f6

                SHA256

                c17064dd750832ce1ae4996684fb34e4a224103ea735f8bdad23a7c2a1a8f7f5

                SHA512

                ab4b80184afd2c5e27521483a4c2fe4bd78ceb05dd014834817501019f0c58f0b98bebec3e370155fd4ff5fb842ed5827021efc4f9b88852c0419e391e0fce7a

              • C:\Users\Admin\AppData\Local\Temp\inl5E1B.tmp

                Filesize

                57.2MB

                MD5

                bb2488f8b2cc11f494c4e1d164e85016

                SHA1

                5a2f746ff3b96b4cbf59c66de525717a6ffcd1f6

                SHA256

                c17064dd750832ce1ae4996684fb34e4a224103ea735f8bdad23a7c2a1a8f7f5

                SHA512

                ab4b80184afd2c5e27521483a4c2fe4bd78ceb05dd014834817501019f0c58f0b98bebec3e370155fd4ff5fb842ed5827021efc4f9b88852c0419e391e0fce7a

              • 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

                4fa79983bfe412b00d533001c6add663

                SHA1

                971aa6e7761acd5936f4158fe1e5a56e48d39e36

                SHA256

                5c1fb6c3284211382b4f4683dc45adfa16cd1af1347198b4409b9ee868fd0649

                SHA512

                adc888cdf662299458ca105a41b8302b5052d2aec8c96694e879cd20c32307f97a2fb00599e910f5899cd4c5773f852510993e11eef22e586ab994b0d383c7ec

              • 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

                a15a583b04bf8428a074f49bcf23a08d

                SHA1

                b33a573fe60ccc339eaaec82865ab23b872d328e

                SHA256

                4f87d823f69798d311305d5b31d1875d95969ab0a2baf3028e13382743cbeba8

                SHA512

                d753fade0479914033320d37cc6b2eadbb95d46626f000314e4a496bf0a0685e5e50f0b17bf775028ccd34527e2fa10fec89daf4dd4b58cdd74a11cf2ae8b633

              • memory/3268-173-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-187-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-226-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-225-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-220-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-217-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-215-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-214-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-213-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-163-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-164-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-166-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-167-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-168-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-169-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-171-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-170-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-172-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-212-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-174-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-175-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-177-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-179-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-180-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-182-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-183-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-184-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-185-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-211-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-189-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-190-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-191-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-192-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-193-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-194-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-195-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-196-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-197-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-201-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-202-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-203-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-204-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-205-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/3268-210-0x00007FF87F6F0000-0x00007FF87F75E000-memory.dmp

                Filesize

                440KB

              • memory/4976-132-0x00000000004E0000-0x0000000000505000-memory.dmp

                Filesize

                148KB

              • memory/4976-219-0x00000000004E0000-0x0000000000505000-memory.dmp

                Filesize

                148KB

              • memory/4976-135-0x00000000004E0000-0x0000000000505000-memory.dmp

                Filesize

                148KB

              • memory/4976-134-0x0000000000F50000-0x0000000000F53000-memory.dmp

                Filesize

                12KB

              • memory/4976-133-0x0000000000F50000-0x0000000000F53000-memory.dmp

                Filesize

                12KB