Analysis

  • max time kernel
    160s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 19:45

General

  • Target

    a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca.exe

  • Size

    241KB

  • MD5

    b4a4c282d31093537e71c263b332fffc

  • SHA1

    500d3e2d7bf880e71c95e940cd7e0cc296b7e733

  • SHA256

    a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca

  • SHA512

    d8ce2a5de8ed294b9b4752ce915a5e8434d82f903be98570bce8e40d314281450166f3a66fa59461ccc97529b838b820bda918dbb2d4be0d4bf4df043d1e46e5

  • SSDEEP

    3072:TdVd2Hayox1aMOpNRZ00BdVd2Hayox1aMrpNRZ0c65BQZB1VLpCjARIqERZ0/:5uHO6uHOCrG1VVE+IM

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Blocks application from running via registry modification 17 IoCs

    Adds application to list of disallowed applications.

  • Executes dropped EXE 1 IoCs
  • Sets file execution options in registry 2 TTPs 20 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 10 IoCs
  • Launches sc.exe 8 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Runs net.exe
  • Runs regedit.exe 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca.exe
    "C:\Users\Admin\AppData\Local\Temp\a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
      2⤵
        PID:4072
      • C:\Windows\SysWOW64\net.exe
        net.exe start schedule /y
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4900
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 start schedule /y
          3⤵
            PID:2168
        • C:\Windows\SysWOW64\At.exe
          At.exe 8:09:08 PM C:\Windows\Help\HelpCat.exe
          2⤵
            PID:4088
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c at 8:08:10 PM C:\Windows\Sysinf.bat
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:176
            • C:\Windows\SysWOW64\at.exe
              at 8:08:10 PM C:\Windows\Sysinf.bat
              3⤵
                PID:3396
            • C:\Windows\SysWOW64\net.exe
              net.exe stop sharedaccess /y
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:328
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop sharedaccess /y
                3⤵
                  PID:4656
              • C:\Windows\SysWOW64\net.exe
                net.exe stop wscsvc /y
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:772
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop wscsvc /y
                  3⤵
                    PID:4944
                • C:\Windows\SysWOW64\net.exe
                  net.exe stop wuauserv /y
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3760
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop wuauserv /y
                    3⤵
                      PID:4352
                  • C:\Windows\SysWOW64\net.exe
                    net.exe stop srservice /y
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3576
                    • C:\Windows\SysWOW64\net1.exe
                      C:\Windows\system32\net1 stop srservice /y
                      3⤵
                        PID:5028
                    • C:\Windows\SysWOW64\net.exe
                      net.exe stop 360timeprot /y
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1112
                      • C:\Windows\SysWOW64\net1.exe
                        C:\Windows\system32\net1 stop 360timeprot /y
                        3⤵
                          PID:2092
                      • C:\Windows\SysWOW64\cmd.exe
                        cmd /c at 8:11:10 PM C:\Windows\Sysinf.bat
                        2⤵
                          PID:220
                          • C:\Windows\SysWOW64\at.exe
                            at 8:11:10 PM C:\Windows\Sysinf.bat
                            3⤵
                              PID:2808
                          • C:\Windows\SysWOW64\sc.exe
                            C:\Windows\system32\sc.exe config srservice start= disabled
                            2⤵
                            • Launches sc.exe
                            PID:1812
                          • C:\Windows\SysWOW64\sc.exe
                            C:\Windows\system32\sc.exe config SharedAccess start= disabled
                            2⤵
                            • Launches sc.exe
                            PID:4016
                          • C:\Windows\SysWOW64\sc.exe
                            C:\Windows\system32\sc.exe config wscsvc start= disabled
                            2⤵
                            • Launches sc.exe
                            PID:1520
                          • C:\Windows\SysWOW64\sc.exe
                            C:\Windows\system32\sc.exe config srservice start= disabled
                            2⤵
                            • Launches sc.exe
                            PID:2648
                          • C:\Windows\SysWOW64\regedit.exe
                            regedit.exe /s C:\Windows\regedt32.sys
                            2⤵
                            • Modifies visibility of file extensions in Explorer
                            • Blocks application from running via registry modification
                            • Sets file execution options in registry
                            • Runs regedit.exe
                            PID:2444
                          • C:\Windows\SysWOW64\reg.exe
                            C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
                            2⤵
                              PID:4224
                            • C:\Windows\SysWOW64\reg.exe
                              C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
                              2⤵
                                PID:4188
                              • C:\Windows\system\KavUpda.exe
                                C:\Windows\system\KavUpda.exe
                                2⤵
                                • Executes dropped EXE
                                • Drops autorun.inf file
                                • Drops file in System32 directory
                                • Drops file in Windows directory
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of SetWindowsHookEx
                                PID:1260
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
                                  3⤵
                                    PID:3776
                                  • C:\Windows\SysWOW64\net.exe
                                    net.exe start schedule /y
                                    3⤵
                                      PID:2004
                                      • C:\Windows\SysWOW64\net1.exe
                                        C:\Windows\system32\net1 start schedule /y
                                        4⤵
                                          PID:4952
                                      • C:\Windows\SysWOW64\At.exe
                                        At.exe 8:09:12 PM C:\Windows\Help\HelpCat.exe
                                        3⤵
                                          PID:1832
                                        • C:\Windows\SysWOW64\cmd.exe
                                          cmd /c at 8:11:14 PM C:\Windows\Sysinf.bat
                                          3⤵
                                            PID:3324
                                            • C:\Windows\SysWOW64\at.exe
                                              at 8:11:14 PM C:\Windows\Sysinf.bat
                                              4⤵
                                                PID:3604
                                            • C:\Windows\SysWOW64\net.exe
                                              net.exe stop wscsvc /y
                                              3⤵
                                                PID:1336
                                                • C:\Windows\SysWOW64\net1.exe
                                                  C:\Windows\system32\net1 stop wscsvc /y
                                                  4⤵
                                                    PID:3280
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  cmd /c at 8:08:14 PM C:\Windows\Sysinf.bat
                                                  3⤵
                                                    PID:4280
                                                    • C:\Windows\SysWOW64\at.exe
                                                      at 8:08:14 PM C:\Windows\Sysinf.bat
                                                      4⤵
                                                        PID:3476
                                                    • C:\Windows\SysWOW64\net.exe
                                                      net.exe stop sharedaccess /y
                                                      3⤵
                                                        PID:2740
                                                        • C:\Windows\SysWOW64\net1.exe
                                                          C:\Windows\system32\net1 stop sharedaccess /y
                                                          4⤵
                                                            PID:4068
                                                        • C:\Windows\SysWOW64\net.exe
                                                          net.exe stop wuauserv /y
                                                          3⤵
                                                            PID:5116
                                                            • C:\Windows\SysWOW64\net1.exe
                                                              C:\Windows\system32\net1 stop wuauserv /y
                                                              4⤵
                                                                PID:2872
                                                            • C:\Windows\SysWOW64\net.exe
                                                              net.exe stop srservice /y
                                                              3⤵
                                                                PID:1820
                                                                • C:\Windows\SysWOW64\net1.exe
                                                                  C:\Windows\system32\net1 stop srservice /y
                                                                  4⤵
                                                                    PID:2448
                                                                • C:\Windows\SysWOW64\net.exe
                                                                  net.exe stop 360timeprot /y
                                                                  3⤵
                                                                    PID:2224
                                                                    • C:\Windows\SysWOW64\net1.exe
                                                                      C:\Windows\system32\net1 stop 360timeprot /y
                                                                      4⤵
                                                                        PID:4604
                                                                    • C:\Windows\SysWOW64\sc.exe
                                                                      C:\Windows\system32\sc.exe config srservice start= disabled
                                                                      3⤵
                                                                      • Launches sc.exe
                                                                      PID:3120
                                                                    • C:\Windows\SysWOW64\sc.exe
                                                                      C:\Windows\system32\sc.exe config SharedAccess start= disabled
                                                                      3⤵
                                                                      • Launches sc.exe
                                                                      PID:4180
                                                                    • C:\Windows\SysWOW64\sc.exe
                                                                      C:\Windows\system32\sc.exe config wscsvc start= disabled
                                                                      3⤵
                                                                      • Launches sc.exe
                                                                      PID:3144
                                                                    • C:\Windows\SysWOW64\sc.exe
                                                                      C:\Windows\system32\sc.exe config srservice start= disabled
                                                                      3⤵
                                                                      • Launches sc.exe
                                                                      PID:4056
                                                                    • C:\Windows\SysWOW64\reg.exe
                                                                      C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
                                                                      3⤵
                                                                        PID:3692
                                                                      • C:\Windows\SysWOW64\reg.exe
                                                                        C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
                                                                        3⤵
                                                                          PID:4288
                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                          cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                          3⤵
                                                                            PID:1192
                                                                            • C:\Windows\SysWOW64\attrib.exe
                                                                              attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                              4⤵
                                                                              • Views/modifies file attributes
                                                                              PID:4728
                                                                          • C:\Windows\SysWOW64\cmd.exe
                                                                            cmd /c rmdir C:\Autorun.inf /s /q
                                                                            3⤵
                                                                              PID:3688
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              cmd /c rmdir C:\Autorun.inf /s /q
                                                                              3⤵
                                                                                PID:1104
                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                3⤵
                                                                                  PID:4864
                                                                                  • C:\Windows\SysWOW64\attrib.exe
                                                                                    attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                    4⤵
                                                                                    • Views/modifies file attributes
                                                                                    PID:912
                                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                                  cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                  3⤵
                                                                                    PID:1424
                                                                                    • C:\Windows\SysWOW64\attrib.exe
                                                                                      attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                      4⤵
                                                                                      • Views/modifies file attributes
                                                                                      PID:1448
                                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                                    cmd /c rmdir C:\Autorun.inf /s /q
                                                                                    3⤵
                                                                                      PID:4388
                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                      cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                      3⤵
                                                                                        PID:544
                                                                                        • C:\Windows\SysWOW64\attrib.exe
                                                                                          attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                          4⤵
                                                                                          • Views/modifies file attributes
                                                                                          PID:1476
                                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                                        cmd /c rmdir C:\Autorun.inf /s /q
                                                                                        3⤵
                                                                                          PID:5080
                                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                                          cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                          3⤵
                                                                                            PID:4396
                                                                                            • C:\Windows\SysWOW64\attrib.exe
                                                                                              attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                              4⤵
                                                                                              • Views/modifies file attributes
                                                                                              PID:964
                                                                                          • C:\Windows\SysWOW64\cmd.exe
                                                                                            cmd /c rmdir C:\Autorun.inf /s /q
                                                                                            3⤵
                                                                                              PID:384
                                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                                              cmd /c rmdir C:\Autorun.inf /s /q
                                                                                              3⤵
                                                                                                PID:2768
                                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                                cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                                3⤵
                                                                                                  PID:764
                                                                                                  • C:\Windows\SysWOW64\attrib.exe
                                                                                                    attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                                    4⤵
                                                                                                    • Views/modifies file attributes
                                                                                                    PID:916
                                                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                                                  cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                                  3⤵
                                                                                                    PID:3012
                                                                                                    • C:\Windows\SysWOW64\attrib.exe
                                                                                                      attrib -s -h -r C:\Autorun.inf\*.* /s /d
                                                                                                      4⤵
                                                                                                      • Views/modifies file attributes
                                                                                                      PID:4744
                                                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                                                    cmd /c rmdir C:\Autorun.inf /s /q
                                                                                                    3⤵
                                                                                                      PID:2860
                                                                                                  • C:\Windows\SysWOW64\net.exe
                                                                                                    net.exe stop wscsvc /y
                                                                                                    2⤵
                                                                                                      PID:2172
                                                                                                      • C:\Windows\SysWOW64\net1.exe
                                                                                                        C:\Windows\system32\net1 stop wscsvc /y
                                                                                                        3⤵
                                                                                                          PID:2320
                                                                                                      • C:\Windows\SysWOW64\net.exe
                                                                                                        net.exe stop sharedaccess /y
                                                                                                        2⤵
                                                                                                          PID:4516
                                                                                                          • C:\Windows\SysWOW64\net1.exe
                                                                                                            C:\Windows\system32\net1 stop sharedaccess /y
                                                                                                            3⤵
                                                                                                              PID:3600
                                                                                                          • C:\Windows\SysWOW64\net.exe
                                                                                                            net.exe stop wuauserv /y
                                                                                                            2⤵
                                                                                                              PID:3336
                                                                                                              • C:\Windows\SysWOW64\net1.exe
                                                                                                                C:\Windows\system32\net1 stop wuauserv /y
                                                                                                                3⤵
                                                                                                                  PID:1420
                                                                                                              • C:\Windows\SysWOW64\net.exe
                                                                                                                net.exe stop srservice /y
                                                                                                                2⤵
                                                                                                                  PID:3016
                                                                                                                  • C:\Windows\SysWOW64\net1.exe
                                                                                                                    C:\Windows\system32\net1 stop srservice /y
                                                                                                                    3⤵
                                                                                                                      PID:1008
                                                                                                                  • C:\Windows\SysWOW64\net.exe
                                                                                                                    net.exe stop 360timeprot /y
                                                                                                                    2⤵
                                                                                                                      PID:644
                                                                                                                      • C:\Windows\SysWOW64\net1.exe
                                                                                                                        C:\Windows\system32\net1 stop 360timeprot /y
                                                                                                                        3⤵
                                                                                                                          PID:1452

                                                                                                                    Network

                                                                                                                    MITRE ATT&CK Enterprise v6

                                                                                                                    Replay Monitor

                                                                                                                    Loading Replay Monitor...

                                                                                                                    Downloads

                                                                                                                    • C:\Windows\SysWOW64\Option.bat

                                                                                                                      Filesize

                                                                                                                      82B

                                                                                                                      MD5

                                                                                                                      3f7fbd2eb34892646e93fd5e6e343512

                                                                                                                      SHA1

                                                                                                                      265ac1061b54f62350fb7a5f57e566454d013a66

                                                                                                                      SHA256

                                                                                                                      e75e8d9bfc7a2876d908305186c3656e9de2a4af7f6927ccc6d8c812645abbc7

                                                                                                                      SHA512

                                                                                                                      53d40eb2f05a23464fbf06193868e7cb30cf0df3da53586a75123fb2c37b29cdddda287ce134809d16a559d87fb20aee0e8add22d396fcb7a55f9a753739b140

                                                                                                                    • C:\Windows\SysWOW64\Option.bat

                                                                                                                      Filesize

                                                                                                                      82B

                                                                                                                      MD5

                                                                                                                      3f7fbd2eb34892646e93fd5e6e343512

                                                                                                                      SHA1

                                                                                                                      265ac1061b54f62350fb7a5f57e566454d013a66

                                                                                                                      SHA256

                                                                                                                      e75e8d9bfc7a2876d908305186c3656e9de2a4af7f6927ccc6d8c812645abbc7

                                                                                                                      SHA512

                                                                                                                      53d40eb2f05a23464fbf06193868e7cb30cf0df3da53586a75123fb2c37b29cdddda287ce134809d16a559d87fb20aee0e8add22d396fcb7a55f9a753739b140

                                                                                                                    • C:\Windows\Sysinf.bat

                                                                                                                      Filesize

                                                                                                                      460B

                                                                                                                      MD5

                                                                                                                      7db3d565d6ddbe65a8b0e093910e7dcd

                                                                                                                      SHA1

                                                                                                                      d4804e6180c6e74ba79d3343f2f2ccb15e502f12

                                                                                                                      SHA256

                                                                                                                      a2778cb87fd88c7508ffd506a8ff8d58d0ffc02156f846956e5e99c6cb3d2f3f

                                                                                                                      SHA512

                                                                                                                      0b3d1d0f44feba9dd78903ff77fdeaea834d930990a86641fb2e4ce04da280d33f6bee0ae0b1320e4070cbe20824062e45b52e5cad797c5985d8e31dce1ef82b

                                                                                                                    • C:\Windows\System\KavUpda.exe

                                                                                                                      Filesize

                                                                                                                      241KB

                                                                                                                      MD5

                                                                                                                      b4a4c282d31093537e71c263b332fffc

                                                                                                                      SHA1

                                                                                                                      500d3e2d7bf880e71c95e940cd7e0cc296b7e733

                                                                                                                      SHA256

                                                                                                                      a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca

                                                                                                                      SHA512

                                                                                                                      d8ce2a5de8ed294b9b4752ce915a5e8434d82f903be98570bce8e40d314281450166f3a66fa59461ccc97529b838b820bda918dbb2d4be0d4bf4df043d1e46e5

                                                                                                                    • C:\Windows\regedt32.sys

                                                                                                                      Filesize

                                                                                                                      2KB

                                                                                                                      MD5

                                                                                                                      e7d7ec66bd61fac3843c98650b0c68f6

                                                                                                                      SHA1

                                                                                                                      a15ae06e1be51038863650746368a71024539bac

                                                                                                                      SHA256

                                                                                                                      6475d5ecc14fea090774be55723d2d52b7ec7670527a7dbd61edf28c77944cb8

                                                                                                                      SHA512

                                                                                                                      ac9e9893f5a0af03957731445f63279085f164e9a968d706a99d13012e4459314a7ccc32dc48f62379d69e21a0953c13543c9ded38b5ad5fbc346aa442af1ae6

                                                                                                                    • C:\Windows\system\KavUpda.exe

                                                                                                                      Filesize

                                                                                                                      241KB

                                                                                                                      MD5

                                                                                                                      b4a4c282d31093537e71c263b332fffc

                                                                                                                      SHA1

                                                                                                                      500d3e2d7bf880e71c95e940cd7e0cc296b7e733

                                                                                                                      SHA256

                                                                                                                      a4afc09749d1d4cf68da5a2997e12b9fcd65ea8622dfc8258b80243b1cc16fca

                                                                                                                      SHA512

                                                                                                                      d8ce2a5de8ed294b9b4752ce915a5e8434d82f903be98570bce8e40d314281450166f3a66fa59461ccc97529b838b820bda918dbb2d4be0d4bf4df043d1e46e5

                                                                                                                    • memory/1260-171-0x0000000000400000-0x0000000000440000-memory.dmp

                                                                                                                      Filesize

                                                                                                                      256KB

                                                                                                                    • memory/4432-192-0x0000000000400000-0x0000000000440000-memory.dmp

                                                                                                                      Filesize

                                                                                                                      256KB

                                                                                                                    • memory/4432-132-0x0000000000400000-0x0000000000440000-memory.dmp

                                                                                                                      Filesize

                                                                                                                      256KB