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Analysis

  • max time kernel
    147s
  • max time network
    160s
  • 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, 04:53

General

  • Target

    b723a391966fe939c66d7f109bf2236ed2ab3e00ff359a84d2c15271afd18aab.exe

  • Size

    57KB

  • MD5

    7ce847199d03c3b3407683a19ef18309

  • SHA1

    cad807af63f724c18dc48ba44a0d51972151431b

  • SHA256

    b723a391966fe939c66d7f109bf2236ed2ab3e00ff359a84d2c15271afd18aab

  • SHA512

    97090db597267ca1ef001e4349e6e04beb481550f30aae0a0912907a2765457080b7df1a148881ba922f38c28d6a8d7dddcba23b5a78cb10763bbdd104952842

  • SSDEEP

    768:AEBt4mR/01IyzJAFdmvNTYeEK176nZZihk1DC+TEAzlOuYlHE+:A+4mR/01IpFANTJ1mn/fIAz4HE+

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 43 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\b723a391966fe939c66d7f109bf2236ed2ab3e00ff359a84d2c15271afd18aab.exe
    "C:\Users\Admin\AppData\Local\Temp\b723a391966fe939c66d7f109bf2236ed2ab3e00ff359a84d2c15271afd18aab.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mother_check219.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2824
      • 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:3292
        • 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:2108
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2108 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2976
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 syssetup,SetupInfObjectInstallAction DefaultInstall 128 C:\Users\Admin\AppData\Roaming\PPLive\1.inf
          4⤵
            PID:5028
          • 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:3528
            • 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:2020
            • 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:2140
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\tmp" /v "key" /d ""http://www.71628.com/?i"" /f
              5⤵
                PID:5108
              • C:\Windows\SysWOW64\reg.exe
                reg add "HKCR\CLSID\{971C5380-92A0-5A69-B3EE-C3002B33309E}" /v "IsShortCut" /d "" /f
                5⤵
                • Modifies registry class
                PID:5092
              • 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:1868
              • 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:4080
              • 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:4476
              • 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:2616
                • C:\Windows\SysWOW64\runonce.exe
                  "C:\Windows\system32\runonce.exe" -r
                  6⤵
                  • Checks processor information in registry
                  • Suspicious use of WriteProcessMemory
                  PID:5068
                  • C:\Windows\SysWOW64\grpconv.exe
                    "C:\Windows\System32\grpconv.exe" -o
                    7⤵
                      PID:1800
                • C:\Windows\SysWOW64\rundll32.exe
                  rundll32 D:\VolumeDH\inj.dat,MainLoad
                  5⤵
                    PID:4440
            • C:\Users\Admin\AppData\Local\Temp\inl978F.tmp
              C:\Users\Admin\AppData\Local\Temp\inl978F.tmp
              2⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4108
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl978F.tmp > nul
                3⤵
                  PID:1924
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B723A3~1.EXE > nul
                2⤵
                  PID:4600

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\inl978F.tmp

                Filesize

                57.2MB

                MD5

                41f7d8c001e2e1072c8145a797591fa3

                SHA1

                a505529b19f3fc050e48cd642fc24d3b32d08126

                SHA256

                579f39edb95697f9e59e25545dc3271543b9912ac81c77d1956c419f0f8ea0e7

                SHA512

                42181025d9996e511ab59e50866e06b0dc16f073a9c0b1696e10bbf4d03ec91d2363973cabc99c5a12d6216876b554fb48e690f8a9cec96b66849e4c2402a430

              • C:\Users\Admin\AppData\Local\Temp\inl978F.tmp

                Filesize

                57.2MB

                MD5

                41f7d8c001e2e1072c8145a797591fa3

                SHA1

                a505529b19f3fc050e48cd642fc24d3b32d08126

                SHA256

                579f39edb95697f9e59e25545dc3271543b9912ac81c77d1956c419f0f8ea0e7

                SHA512

                42181025d9996e511ab59e50866e06b0dc16f073a9c0b1696e10bbf4d03ec91d2363973cabc99c5a12d6216876b554fb48e690f8a9cec96b66849e4c2402a430

              • C:\Users\Admin\AppData\Local\Temp\mother_check219.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

                f07f2c3a40be8ca7e696fac49a572ba6

                SHA1

                91cde92a86f8e9e6012a9f52d21cc28d3a91f316

                SHA256

                059809bf44f754817c699abbbadc3f8ad38b437c1f46e9c09b107e43c1b03cd8

                SHA512

                198715f3fd286abd3869217a9dc43993866df0b95f936d375819fc962df6ed9774f5173bc0240367d3db2249043b5958db7758928f3ba147e59ae0a746dd7464

              • memory/2108-178-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-184-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-148-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-224-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-149-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-151-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-152-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-154-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-155-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-157-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-223-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-146-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-161-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-162-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-144-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-222-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-221-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-143-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-167-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-168-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-220-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-142-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-171-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-172-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-219-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-174-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-176-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-214-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-180-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-181-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-183-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-182-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-185-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-147-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-213-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-187-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-188-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-189-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-190-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-212-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-211-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-140-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-139-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-210-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-205-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-204-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-203-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-199-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/2108-201-0x00007FF897750000-0x00007FF8977BE000-memory.dmp

                Filesize

                440KB

              • memory/4676-132-0x0000000000680000-0x00000000006A7000-memory.dmp

                Filesize

                156KB

              • memory/4676-173-0x0000000000680000-0x00000000006A7000-memory.dmp

                Filesize

                156KB

              • memory/4676-133-0x0000000000EC0000-0x0000000000EC3000-memory.dmp

                Filesize

                12KB