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Analysis

  • max time kernel
    175s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 04:30

General

  • Target

    0c9cad762e7aaf2ecdce2f33e16373a243e2c2d9e4516b9d6c290f448340db1e.exe

  • Size

    140KB

  • MD5

    14a6872f6266fb56ec90cb5516e0a34a

  • SHA1

    097617d551559fbe16082df887b4ade87f13cb6c

  • SHA256

    0c9cad762e7aaf2ecdce2f33e16373a243e2c2d9e4516b9d6c290f448340db1e

  • SHA512

    4a327d71920866e4452afca8184c3e4df14ce0e6ad33d6bf74bc5c8a42d348ae46afd362fde3334f3fd54405e573dbf24cbafbc5378c687a9d1fd862c9f9afbc

  • SSDEEP

    1536:nnMg2OVLjlevyaRLBnLuRgiaUxRIxecePKH5nKLV+P:M0LpeTLlamiaUxRIxecePKQi

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 1 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 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\0c9cad762e7aaf2ecdce2f33e16373a243e2c2d9e4516b9d6c290f448340db1e.exe
    "C:\Users\Admin\AppData\Local\Temp\0c9cad762e7aaf2ecdce2f33e16373a243e2c2d9e4516b9d6c290f448340db1e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\start_min_bat.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3148
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\winzip\1.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3700
        • 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:3048
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3048 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2820
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\winzip\1.inf
          4⤵
            PID:4504
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\winzip\2.bat
            4⤵
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Suspicious use of WriteProcessMemory
            PID:1812
            • 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:1144
            • 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:3804
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?S"" /f
              5⤵
                PID:396
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:4420
              • 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\winzip\3.bat""" /f
                5⤵
                • Modifies registry class
                PID:2520
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\winzip\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:1908
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\winzip\tmp
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:2060
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\winzip\2.inf
                5⤵
                • Adds Run key to start application
                • Suspicious use of WriteProcessMemory
                PID:4068
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:1300
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:3000
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:2088
            • C:\Users\Admin\AppData\Local\Temp\inl79FF.tmp
              C:\Users\Admin\AppData\Local\Temp\inl79FF.tmp
              2⤵
              • Executes dropped EXE
              PID:384
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\0C9CAD~1.EXE > nul
              2⤵
                PID:4216

            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

              fceed7a5f76725fb398c6a91ff552899

              SHA1

              237aec000ae7c7c35a639664b1ad6c0d842a0749

              SHA256

              2888c66a6908f10474313b2fef31aeeff40cffe1bcbd19b84b29334ff6a71383

              SHA512

              adfba4e72523d38395c13122d6498d9b48d93b2967858f0208549e3830c9b47ee3e98249b98fe585aeeeffe491a6985a98c80a3be581abccf4239bad4d1cdef3

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

              Filesize

              404B

              MD5

              93a59295f30a7bf3cef74031ef18ffdf

              SHA1

              5741e7a5d8d53b7e44360ddea4c04ba0414e9402

              SHA256

              fbd38d5184af9dfa9c574fea59f52163e998a3e12bb420a7c83b25f09990d6e5

              SHA512

              2a57c6b5ba1811d023de49f5df4b47301a296afaa554a1cabb5418acd156df7bc0139d8ea8f70dbbb7a30f147559559d9b21fdc3e141e48d7b61f84928ec7e08

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\ru1r3yf\imagestore.dat

              Filesize

              1KB

              MD5

              2d1c5daeb11adcf9022555cd9d88d5f0

              SHA1

              9dc6db68f32485ea117892a75b6f66c41fb5545e

              SHA256

              004b8d70bfa5b71fc53a8a7143aae6b41eefcdca375d267663b876228f3f73a7

              SHA512

              8e9b589663ce766bd2728502a364618f51a65f8ecdf9e5e50a4a3aa960314d8e0d2f79739b579b89492b5b2778d66f61fc7db8c5bcb01197586f60bcd98a7165

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

              Filesize

              1KB

              MD5

              3facc60dceffd752f284e286f4ceeb8a

              SHA1

              667ffb98ff425eeb8e3c4c85e0b9fee75cf76da4

              SHA256

              a0583d0e827c3e2aabdfb4e99d6ce78e06eac265bd85f339559433571853f56d

              SHA512

              26c16fd7d173aca60695d464035f639affbb0dcc74788b9246fa051a2bdcfa886e162014ff0eca751fcb90c84a17ab77bacfda1442249f4cbe6bb334c06ce317

            • C:\Users\Admin\AppData\Local\Temp\inl79FF.tmp

              Filesize

              57.2MB

              MD5

              81adc73d2f14eaf0a95e07fdc17f0a76

              SHA1

              c242bc265bf1491233dd3b5f102b603ffdd37a2f

              SHA256

              9af30c48ac0879e7f58ad076a21cda5140420142ae0b3caa468cfc383c13d117

              SHA512

              23b03dab75d640025f413112bd87856f043606661c194e66e2174a5a05327d6adb2e10bff7d0f9ec2f942cac9e1bf03fbce33ff23f6176c55c5b1a5b7c72ee46

            • C:\Users\Admin\AppData\Local\Temp\inl79FF.tmp

              Filesize

              57.2MB

              MD5

              81adc73d2f14eaf0a95e07fdc17f0a76

              SHA1

              c242bc265bf1491233dd3b5f102b603ffdd37a2f

              SHA256

              9af30c48ac0879e7f58ad076a21cda5140420142ae0b3caa468cfc383c13d117

              SHA512

              23b03dab75d640025f413112bd87856f043606661c194e66e2174a5a05327d6adb2e10bff7d0f9ec2f942cac9e1bf03fbce33ff23f6176c55c5b1a5b7c72ee46

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

              Filesize

              53B

              MD5

              9b41ad553fc0a87c014049dfede9e7fa

              SHA1

              840b9c356ec59e65d33bae61c439b0abf11663bd

              SHA256

              a4bd6b14aa9694ba74db5503576072036cd232d586b5e3dd3fe3dade84a67b5e

              SHA512

              6de134478cd5052675cf936f3dc92fb823d72fc3d44c66f5d0755691481302f63cfe602dd7b492354487c9c5b692a09a404c1081265bb3676030cb43a64369b8

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

              Filesize

              2KB

              MD5

              68a30985a8b4a1dae5b24721ca5b8269

              SHA1

              78481107bbddcf18ffc4d25a184ec74274241a6b

              SHA256

              fe94352a25ade782ea77db82f1ec849479ebfe4605156142fc3fdfabc507a0cf

              SHA512

              d452182a296a9e202bce81ad0c752b34d4d779cac94bb54a07517936b79a4007127585673c524c75055f15e33c56eef0d26d1c448723a97fe70c15457bae5a24

            • C:\Users\Admin\AppData\Roaming\winzip\1.inf

              Filesize

              410B

              MD5

              66a1f0147fed7ddd19e9bb7ff93705c5

              SHA1

              9d803c81ea2195617379b880b227892ba30b0bf6

              SHA256

              4f45ce85e221352f7fe26e04968c7f7267dc24b55cf2b72b929b4c90e48cb764

              SHA512

              cfe51756ddec75d240249980a4d27870d15983add25058e4d0da4d8a3ea11384d4d228d6cbc95091f91e516e1ab4dfb1e315941dbd95bf717d4b31936311d597

            • C:\Users\Admin\AppData\Roaming\winzip\2.bat

              Filesize

              3KB

              MD5

              c106ffc420b54a4f0fd331f10657dc66

              SHA1

              8930d5b56358f518bdf5ccca2b4d24f98ce7a03f

              SHA256

              fb8218f8c607ec3a4c4cb6e59ee81a94cf8ff513d0b09565ad456c88a9e7250b

              SHA512

              ee82fb57af0dddf8f1acab855cda151d3eacb8e11b0adc3a81852c1e2d77a566aa630ff5dabd8c7bc92ebe78b6187cc823c8a4a645ca78ee88e2c27483080fbd

            • C:\Users\Admin\AppData\Roaming\winzip\2.inf

              Filesize

              247B

              MD5

              bf915cb73f6126d712c727039ad3d5e6

              SHA1

              73ff72a83711c90e45f8bd34505b3284fd2a870b

              SHA256

              3fd8eeaededa0a76d36df51803c01fe328ba110702a625b28c25bc83f6ef5940

              SHA512

              752387b92716e8e5296d24c532f16e17a955c8f02055c9fd66d4ff84c8f140d7f2a43cfbb4ff97bd5ba1eebc7fa0c215a9283a180a9598b1b413730d19db1957

            • C:\Users\Admin\AppData\Roaming\winzip\4.bat

              Filesize

              44KB

              MD5

              0bdd2dc6a9dd6c67021b3cd617450187

              SHA1

              65df0a7cba017b6b94f6a4747ab7663c598527c1

              SHA256

              0c1d37910cba749399503fb593d62f16f3ddac984b78f8e5ed3e755a1853a08b

              SHA512

              c9494e290e0f4f00d88036d58824eb9c524874d1dfd45c4468662aa439bbe353704d5439ffc034379f472c1c8c876838da97b4c7620ad86ce17d9270ede9c070

            • memory/3048-151-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-147-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-163-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-153-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-164-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-161-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-165-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-166-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-221-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-156-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-150-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-169-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-170-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-172-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-174-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-175-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-176-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-177-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-220-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-179-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-180-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-148-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-182-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-183-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-149-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-215-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-186-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-155-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-191-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-192-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-146-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-145-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-195-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-143-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-200-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-141-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-214-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-201-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-212-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-206-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-208-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-209-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-211-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3048-210-0x00007FF8CBB40000-0x00007FF8CBBAE000-memory.dmp

              Filesize

              440KB

            • memory/3264-132-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB

            • memory/3264-227-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB

            • memory/3264-133-0x0000000000400000-0x0000000000423000-memory.dmp

              Filesize

              140KB