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Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 08:12

General

  • Target

    aab4e5e380ba7f128bbbda173e97a6e600002d0082eacdc60ae6d8db0ea59e98.exe

  • Size

    168KB

  • MD5

    928d6b6564191339000ffd9c19ea9d3a

  • SHA1

    cf3aebdc96d78f638fe154ad2dc00dfb3dff91be

  • SHA256

    aab4e5e380ba7f128bbbda173e97a6e600002d0082eacdc60ae6d8db0ea59e98

  • SHA512

    6b14c89f8afdf13632c9dec2e76aa8333a6d3143c08b25dd94d52a2cc515b5e69ebb94652cb7bb115bb07aab400abf2d36d6239e5a7cb1cc426e85eb6bf9f805

  • SSDEEP

    1536:aHob+TnkkpRNGojAbnXlkjZ2G+7ErBnOZn2KcGO3Ekm+7UmNhG6n3+s:sOukkJGoEbXldaE5eAK

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 64 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\aab4e5e380ba7f128bbbda173e97a6e600002d0082eacdc60ae6d8db0ea59e98.exe
    "C:\Users\Admin\AppData\Local\Temp\aab4e5e380ba7f128bbbda173e97a6e600002d0082eacdc60ae6d8db0ea59e98.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\teacher2011_check.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:936
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\PPLive\1.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2372
        • 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:4288
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4288 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1148
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
            PID:2744
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\PPLive\2.bat
            4⤵
            • Drops file in Program Files directory
            • Suspicious use of WriteProcessMemory
            PID:824
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?o"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:4796
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.82133.com/?o"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:4748
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.82133.com/?o"" /f
              5⤵
                PID:3248
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:876
              • 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\PPLive\3.bat""" /f
                5⤵
                • Modifies registry class
                PID:4176
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\PPLive\tmp\a.{971C5380-92A0-5A69-B3EE-C3002B33309E}
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:692
              • C:\Windows\SysWOW64\attrib.exe
                attrib +s +h C:\Users\Admin\AppData\Roaming\PPLive\tmp
                5⤵
                • Sets file to hidden
                • Views/modifies file attributes
                PID:3432
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\2.inf
                5⤵
                • Adds Run key to start application
                • Suspicious use of WriteProcessMemory
                PID:2972
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:2884
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:5092
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:3988
            • C:\Users\Admin\AppData\Local\Temp\inl205B.tmp
              C:\Users\Admin\AppData\Local\Temp\inl205B.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:928
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl205B.tmp > nul
                3⤵
                  PID:388
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\AAB4E5~1.EXE > nul
                2⤵
                  PID:960

              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

                5ddb1febcd291eb59d3d67d24a05bfd0

                SHA1

                fe957affe27cb991f332e7f5c86d3a15359bd3b9

                SHA256

                ec45a385c906b3d925ebbe6532d10adec9a14c1733c756c64db5133bd9d88dcb

                SHA512

                62d00893402fae125ae3428da2495b0eb864b125f975cd887f894f7298a4a86f361cf50aaa7c9b69f3dcb734a950c43472778ea4062b3146c3de5623d08dcd21

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

                Filesize

                434B

                MD5

                cee162493c7439ad430e63102cc96e59

                SHA1

                fb81903520481f0d6c62aee04b0be60fb5bcf07a

                SHA256

                3b957fff4bc33d33325ed835f6eb0a3e1d232390e1188e6dd67aba503b45f578

                SHA512

                566b856eb088722169436fe8c7e735379f9153a7e60279b887cde4572e7ebfcc01ff3f8d0ca50b787b9d950a8e0093844c605c21fbebc53fd02001bd8145eafa

              • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\ckj4gk4\imagestore.dat

                Filesize

                1KB

                MD5

                e8e071282cbe0ae4d129d21f8d61c8cd

                SHA1

                b5713bedaad1e25ddd8342119e23cc380f3fd498

                SHA256

                3863245238df3febc628e3b69bc55c9f165d1255ef1f6ffa369fc9901d4370b2

                SHA512

                22922c1bd43f0588bb5e27637aead8e6317333b0e53b6ab15fd350fc3981cd7f8f8eaa9ae7ae424b4f5323a47dce2a6e9cde86c63a1024c84ae9a661c1036abc

              • C:\Users\Admin\AppData\Local\Temp\inl205B.tmp

                Filesize

                57.2MB

                MD5

                72f9cf61b03cf83d1e1df73373bc7255

                SHA1

                bff3c0eaaf390608f29eb47ac4da3a38f30f98d1

                SHA256

                226c86d47b3c838de83eb2b0bbaf79e34f1d240ea70547c8b3709197dd72de44

                SHA512

                3f30c3ffaee0bdad1f151c0efe0d95a6971f7631ad9f90034438ac160cfe7ca667ce23ff408d6654a9395b352fd4b3878ebc051f79090b2f34e3392de8df6499

              • C:\Users\Admin\AppData\Local\Temp\inl205B.tmp

                Filesize

                57.2MB

                MD5

                72f9cf61b03cf83d1e1df73373bc7255

                SHA1

                bff3c0eaaf390608f29eb47ac4da3a38f30f98d1

                SHA256

                226c86d47b3c838de83eb2b0bbaf79e34f1d240ea70547c8b3709197dd72de44

                SHA512

                3f30c3ffaee0bdad1f151c0efe0d95a6971f7631ad9f90034438ac160cfe7ca667ce23ff408d6654a9395b352fd4b3878ebc051f79090b2f34e3392de8df6499

              • C:\Users\Admin\AppData\Local\Temp\teacher2011_check.bat

                Filesize

                53B

                MD5

                23962a245f75fe25510051582203aff1

                SHA1

                20832a3a1179bb2730194d2f7738d41d5d669a43

                SHA256

                1abcea214b9b2bd76cc04be07ae2d4d70371e6ca443d99f4f1327afe7a5fc647

                SHA512

                dc36b64f2dbb710652900a31295c148760b0c44eae13515aa29613916c9dffe3d8e55ba61568f7c27b43bf0c341f7dcd4b9c721f81627fc6bb915b15c358fe80

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

                Filesize

                660B

                MD5

                c40ea8f677b3f48bfb7f4cfc6d3f03ab

                SHA1

                10b94afd8e6ea98a3c8a955304f9ce660b0c380a

                SHA256

                b1a31a74cc88d0f8e39aaebf58a724b89391dc3fbac733953790edf8ded8172c

                SHA512

                409b8a45576bf08e185446b13a512c115df7483ff8ec30ea51ee93ee1ac8153ae3b615650ff69a5d1e41fa0cd57fcdc4c5d03b4b4453431114ac018f48e194d9

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

                Filesize

                3KB

                MD5

                b7c5e3b416b1d1b5541ef44662e1a764

                SHA1

                8bff7ea2be2f3cf29f2381d8007198b5991ca3ae

                SHA256

                f1a2f9fdebb3cac24756e53fa5e1628b2bd1cc130480c1878e3b3bc880575cd1

                SHA512

                65dbd6a7a7cf6fec00e6b0f1d7d5655769e6087ad09cad74c91c5a3395e675ac8f9df5c7185327e6f8dd03ddb60504400f54237d9e4b53c8b08e7e3d41ee61fc

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

                Filesize

                492B

                MD5

                34c14b8530e1094e792527f7a474fe77

                SHA1

                f71c4e9091140256b34c18220d1dd1efab1f301d

                SHA256

                fe0dfb3458bfe2a3632d365e00765fa10f14d62e7dfa8b70a055c7eb9fdb6713

                SHA512

                25bb09b526e1e9f5c6052f1f7c36b37c956c1b5649936af8df3abfcf120c931f3d2603e17a061cb99d8c8074bfb1973a5423cce89762fca53cd46aeb3e8944a2

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

                Filesize

                3KB

                MD5

                6b78cb8ced798ca5df5612dd62ce0965

                SHA1

                5a9c299393b96b0bf8f6770e3c7b0318a9e2e0cf

                SHA256

                81f64f42edfac2863a55db8fabd528c4eefc67f7e658cad6a57eeec862e444e3

                SHA512

                b387ba10021f3284d1406d520a2c8b3ba0c87922d67c79394c1aa50c631194519ac6bb5b898956533f040d48e1c7b202734e0075f8fc8c8bfab82c8ef359b28e

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

                Filesize

                247B

                MD5

                ca436f6f187bc049f9271ecdcbf348fa

                SHA1

                bf8a548071cfc150f7affb802538edf03d281106

                SHA256

                6cdfa9b7f0e1e4ee16bc8ce5d7448d47ea8866c1f55f3e56be5c2a4d183ca534

                SHA512

                d19e20aabddad6b0284f8c1d473e9180f30b49d4d8b54f26e7c8630228e16b1f6ba04023c5e8b1993d8a10d97adcfff683b216f79b9981bf16181641aebdd591

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

                Filesize

                5.8MB

                MD5

                f61c190ffa4c4db95d955313c36f599a

                SHA1

                e09a0aedb13b643437b817509b992d6161157fa3

                SHA256

                d6d69eb33405b91d0a1bd800c19c85a8ac19f3a860f9b40cccb49362ca14509a

                SHA512

                ea2c1126bf9e80266a7dc9a9a961d536d6245a049dd92bc8d87d27cb678b5602a564fd4c9126df9bc84d2bbd11a0562fc22fb7a5fb44498efd7c7df91967c4df

              • memory/1312-132-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB

              • memory/1312-169-0x0000000000400000-0x000000000042A000-memory.dmp

                Filesize

                168KB

              • memory/4288-152-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-209-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-168-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-165-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-164-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-170-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-172-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-175-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-176-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-177-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-178-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-179-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-140-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-162-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-157-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-184-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-185-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-155-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-188-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-151-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-192-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-193-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-150-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-195-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-148-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-197-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-199-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-147-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-146-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-145-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-144-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-207-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-141-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-166-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-210-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-211-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-212-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-213-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-215-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-216-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-221-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-222-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB

              • memory/4288-143-0x00007FF8F9F00000-0x00007FF8F9F6E000-memory.dmp

                Filesize

                440KB