Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2022 17:51

General

  • Target

    d82723a9e3a2be8f078232a4afeef4d31b492cdc6c8305de0ec971aa4116a92a.exe

  • Size

    57KB

  • MD5

    0b0ee3bfe9d95fb5c4db1aa98e9dc80f

  • SHA1

    79ecf10f1723a03448e2fcbba91efa914c2a40b3

  • SHA256

    d82723a9e3a2be8f078232a4afeef4d31b492cdc6c8305de0ec971aa4116a92a

  • SHA512

    77c35557de4cc91595bfa67b0bbd823214474e1d694878c2b80098a05216f98a09cb7eeea8d0ba1d6538f01fef735ddf8cbf65d1ab1cf54a7ca7397e5402b1ef

  • SSDEEP

    1536:0BFob1D2gFZwE06rZJajb5WwP+5riUokv2dY:8oFhFSEHr3qUwP+5rixy

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\d82723a9e3a2be8f078232a4afeef4d31b492cdc6c8305de0ec971aa4116a92a.exe
    "C:\Users\Admin\AppData\Local\Temp\d82723a9e3a2be8f078232a4afeef4d31b492cdc6c8305de0ec971aa4116a92a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4324
    • 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:1432
      • 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:2088
        • 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:4232
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4232 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1308
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
            PID:1344
          • 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:4320
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKLM\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.71628.com/?i"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:2344
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d ""http://www.71628.com/?i"" /f
              5⤵
              • Modifies Internet Explorer settings
              • Modifies Internet Explorer start page
              PID:1296
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.71628.com/?i"" /f
              5⤵
                PID:2664
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:5044
              • 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:2024
              • 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:3548
              • 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:1668
              • 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:4084
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:1332
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:1496
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:1864
            • C:\Users\Admin\AppData\Local\Temp\inl1678.tmp
              C:\Users\Admin\AppData\Local\Temp\inl1678.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:944
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl1678.tmp > nul
                3⤵
                  PID:4564
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D82723~1.EXE > nul
                2⤵
                  PID:2368

              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

                4f630c01f9bf4c57d049a46ea616203c

                SHA1

                a2d06f097a95d9096f7e381d39e982c0c29aac25

                SHA256

                217bc1b6fd8b9b5987d428f164bde885ce60d24db297abd86c177e8595c30793

                SHA512

                1ae68ac255fe9b2c517425e8642fb630c178ea261e6e844fc27d7a9f8d3e6c92da594549284622aee09b96540e9fc6086fa32ba7f66c794c1c983ed7c526af45

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

                Filesize

                434B

                MD5

                6c63d9e15b2a1c1d1d7e1d929abf0555

                SHA1

                4a46432ed3f286a08291eb965c9f3e973ba67114

                SHA256

                8e295fd0859b0fd84aec932e33efceb9b6889d6b58987e109ff158f99502c582

                SHA512

                de3ba942722219d7cfcc5864868f2390d470b84820929e4d955edf24559bf7a806f2e49e25e667483f58e64f85fb46b5097a9c79d22ca02f8362c93a55916f9c

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

                Filesize

                1KB

                MD5

                31d3db03b550211f0f40cb3fd863c5be

                SHA1

                41f0ce880e12eada83801a14e1079a43041b03de

                SHA256

                d5717224e127f67bfd1d59b3bb6a19a41a85ecd84176041c30afe908d9eb94b8

                SHA512

                16c0fb63ee2382110238e8a46413cd36136e9c95a179e607741a8f960919792214e5e838fbf5742cfd3e2e4f866f1557cf5a7c3db4d503b17ef89951e57bad51

              • C:\Users\Admin\AppData\Local\Temp\inl1678.tmp

                Filesize

                57.2MB

                MD5

                5faded67a98edf91c917dcfab72ca55c

                SHA1

                b739523de4b8af7f0221f5bb178d4ea435d78dfb

                SHA256

                5ca2e0358a3c8ea860df92d73466cbe93553d9989a9fd81212b0d78875b8e83d

                SHA512

                49bb3fb87a6ec1cee35ec7d68ca8ed61f8d40559139b482bbf2063b912c307734477aa38342343bdf731ed58335eafa287db5b0dac18a7f4d8f10fba5e8d82e5

              • C:\Users\Admin\AppData\Local\Temp\inl1678.tmp

                Filesize

                57.2MB

                MD5

                5faded67a98edf91c917dcfab72ca55c

                SHA1

                b739523de4b8af7f0221f5bb178d4ea435d78dfb

                SHA256

                5ca2e0358a3c8ea860df92d73466cbe93553d9989a9fd81212b0d78875b8e83d

                SHA512

                49bb3fb87a6ec1cee35ec7d68ca8ed61f8d40559139b482bbf2063b912c307734477aa38342343bdf731ed58335eafa287db5b0dac18a7f4d8f10fba5e8d82e5

              • 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

                d980f89e4088711df685a0aa09e8f5a7

                SHA1

                dde805f4fa5e016e122e4240e20ff844113717d7

                SHA256

                28f62bd59962d06d903ea079466c66985caa306251717235a0d470a1b0f62d09

                SHA512

                fa2a669d846081d71dcada405d3c4bdb92229ba2b4a9f8fd4e461d7c4d51012d3d3b893466f814c8178b9980119703d1a3f7eafeff281a2eb75465e504df9ee9

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

                Filesize

                3KB

                MD5

                286fe459674aef6eee17f6ac79a15fdb

                SHA1

                233dc43099c575a67b05fc1076e676324fd6e63d

                SHA256

                872cc596dc1fe6d5a131129bd84c2a76d6874e9c57ab2cd792d4d12b6f014fd2

                SHA512

                c9acc4a134001da76e7ae6aa5ae65ce58501942dfc1f80959ae4db27c06010db753c9d115eedbe0b2b0e30dd5c4dcd1d32816493b053c65cee81d3a343c87314

              • 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

                d4917ae9072a10d8e12ef3b282b25b3b

                SHA1

                bd9ec6c6395997525ec7c15ecca2f115573cc14c

                SHA256

                6f7649988962c61ac7644262ee6082ef352bbb00cb155a3f4ef0467fbdf1c67b

                SHA512

                c6ed3119e008191ad56050f6b72a2d64e908c57e80fd0c252b8b1947cf091644c83b6bc16c56d6e2153579eb3e8711c8cd608977426a0906d56a7713bfca309d

              • 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

                c6775f8773e3733f0f34d705dcfc3fe0

                SHA1

                01659d6c37ca7c7522a60a535b0946fa6997eb9a

                SHA256

                7efd6529fa81429ec30be38cab123e71417471ca2b28b97a35ebc2cbbdf283ce

                SHA512

                f2ed54901774545fde16cb4f751fc116397902dc2feda78063373dbb470e0b03e17f29b4e4c2a87ba9c612add5664dab51ffc4a85fd65ff733cfdf9d0c4ea5d0

              • memory/4232-152-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-194-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-165-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-166-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-167-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-168-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-161-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-170-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-160-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-173-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-155-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-178-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-179-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-180-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-182-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-153-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-183-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-223-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-222-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-186-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-187-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-189-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-150-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-151-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-163-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-196-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-149-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-198-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-148-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-146-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-145-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-142-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-202-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-203-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-141-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-209-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-210-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-211-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-212-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-213-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-214-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-216-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4232-217-0x00007FFC46DD0000-0x00007FFC46E3E000-memory.dmp

                Filesize

                440KB

              • memory/4324-132-0x0000000000370000-0x0000000000397000-memory.dmp

                Filesize

                156KB

              • memory/4324-172-0x0000000000370000-0x0000000000397000-memory.dmp

                Filesize

                156KB

              • memory/4324-133-0x0000000000E40000-0x0000000000E43000-memory.dmp

                Filesize

                12KB