Resubmissions

02/03/2024, 22:38

240302-2kwptaae3710

02/03/2024, 22:34

240302-2g86qsad9610

Analysis

  • max time kernel
    146s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2024, 22:34

General

  • Target
    Fake AV/InternetSecurityGuard.exe
  • Size 6.1MB
  • Sample240302-2g86qsad96
  • SHA256 b6371644b93b9d3b9b32b2f13f8265f9c23ddecc1e9c5a0291bbf98aa0fc3b77
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • UAC bypass 3 TTPs 6 IoCs
  • Checks for common network interception software 1 TTPs

    Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Blocks application from running via registry modification 18 IoCs

    Adds application to list of disallowed applications.

  • Drops file in Drivers directory 4 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unexpected DNS network traffic destination 36 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 11 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies registry class 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fake AV\InternetSecurityGuard.exe
    "C:\Users\Admin\AppData\Local\Temp\Fake AV\InternetSecurityGuard.exe"
    1⤵
    • UAC bypass
    • Enumerates VirtualBox registry keys
    • Blocks application from running via registry modification
    • Drops file in Drivers directory
    • Sets file execution options in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Checks for any installed AV software in registry
    • Checks whether UAC is enabled
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Modifies Internet Explorer settings
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2528
    • C:\Windows\SysWOW64\Wbem\mofcomp.exe
      mofcomp "C:\Users\Admin\AppData\Local\Temp\Fake AV\6268.mof"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1216
    • C:\Windows\SysWOW64\netsh.exe
      netsh "firewall" add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Fake AV\InternetSecurityGuard.exe" "Internet Security Guard" ENABLE
      2⤵
        PID:900
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup -q=txt diinu560ubjjsv.com 8.8.8.8
        2⤵
          PID:2656
        • C:\Windows\SysWOW64\nslookup.exe
          nslookup -q=txt diinu560ubjjsv.net 8.8.8.8
          2⤵
            PID:840
          • C:\Windows\SysWOW64\nslookup.exe
            nslookup -q=txt diinu560ubjjsv.com 208.67.222.222
            2⤵
              PID:2032
            • C:\Windows\SysWOW64\nslookup.exe
              nslookup -q=txt diinu560ubjjsv.net 208.67.222.222
              2⤵
                PID:2536
              • C:\Windows\SysWOW64\nslookup.exe
                nslookup -q=txt diinu560ubjjsv.com 8.8.4.4
                2⤵
                  PID:2904
                • C:\Windows\SysWOW64\nslookup.exe
                  nslookup -q=txt diinu560ubjjsv.net 8.8.4.4
                  2⤵
                    PID:3000
                  • C:\Windows\SysWOW64\nslookup.exe
                    nslookup -q=txt diinu560ubjjsv.com 208.67.220.220
                    2⤵
                      PID:1032
                    • C:\Windows\SysWOW64\nslookup.exe
                      nslookup -q=txt diinu560ubjjsv.net 208.67.220.220
                      2⤵
                        PID:2508
                      • C:\Windows\SysWOW64\nslookup.exe
                        nslookup -q=txt insssyfinr1275tc.com 8.8.8.8
                        2⤵
                          PID:2688
                        • C:\Windows\SysWOW64\nslookup.exe
                          nslookup -q=txt insssyfinr1275tc.net 8.8.8.8
                          2⤵
                            PID:1204
                          • C:\Windows\SysWOW64\nslookup.exe
                            nslookup -q=txt insssyfinr1275tc.com 208.67.222.222
                            2⤵
                              PID:1532
                            • C:\Windows\SysWOW64\nslookup.exe
                              nslookup -q=txt insssyfinr1275tc.net 208.67.222.222
                              2⤵
                                PID:3052
                              • C:\Windows\SysWOW64\nslookup.exe
                                nslookup -q=txt insssyfinr1275tc.com 8.8.4.4
                                2⤵
                                  PID:2808
                                • C:\Windows\SysWOW64\nslookup.exe
                                  nslookup -q=txt insssyfinr1275tc.net 8.8.4.4
                                  2⤵
                                    PID:988
                                  • C:\Windows\SysWOW64\nslookup.exe
                                    nslookup -q=txt insssyfinr1275tc.com 208.67.220.220
                                    2⤵
                                      PID:1152
                                    • C:\Windows\SysWOW64\nslookup.exe
                                      nslookup -q=txt insssyfinr1275tc.net 208.67.220.220
                                      2⤵
                                        PID:1228
                                      • C:\Windows\SysWOW64\nslookup.exe
                                        nslookup -q=txt hppwycfjr1248swx.com 8.8.8.8
                                        2⤵
                                          PID:2428
                                        • C:\Windows\SysWOW64\nslookup.exe
                                          nslookup -q=txt hppwycfjr1248swx.net 8.8.8.8
                                          2⤵
                                            PID:2168
                                          • C:\Windows\SysWOW64\nslookup.exe
                                            nslookup -q=txt hppwycfjr1248swx.com 208.67.222.222
                                            2⤵
                                              PID:1944
                                            • C:\Windows\SysWOW64\nslookup.exe
                                              nslookup -q=txt hppwycfjr1248swx.net 208.67.222.222
                                              2⤵
                                                PID:904
                                              • C:\Windows\SysWOW64\nslookup.exe
                                                nslookup -q=txt hppwycfjr1248swx.com 8.8.4.4
                                                2⤵
                                                  PID:2136
                                                • C:\Windows\SysWOW64\nslookup.exe
                                                  nslookup -q=txt hppwycfjr1248swx.net 8.8.4.4
                                                  2⤵
                                                    PID:2404
                                                  • C:\Windows\SysWOW64\nslookup.exe
                                                    nslookup -q=txt hppwycfjr1248swx.com 208.67.220.220
                                                    2⤵
                                                      PID:1896
                                                    • C:\Windows\SysWOW64\nslookup.exe
                                                      nslookup -q=txt hppwycfjr1248swx.net 208.67.220.220
                                                      2⤵
                                                        PID:1200

                                                    Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

                                                          Loading Replay Monitor...

                                                          Downloads

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 185B
                                                          • SHA256 c47da9be4fc4d757add73c49654c9179067af547d0cc758d6356e2955bbfcb61
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 196B
                                                          • SHA256 8c39246796530ee7588fc16486335d00d5b7273ebb26efe5833e4cfc2bcfe223
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 379B
                                                          • SHA256 2e9257a23eb2a9573daabc180362244f10d0fd71801949c6415155681bad1054
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 966B
                                                          • SHA256 bd7a4a379cf704aae3bd94f3106339b06340ee5105d01b82439ecf2af49cbf83
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 1KB
                                                          • SHA256 2378c709a4d7a83bc3a13c580423ef04cd5c3e661d19012b146e234a845317fd
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 1KB
                                                          • SHA256 49b4e777bef21024629618bb113a3961430946e89e93db710e27e2420136b69a
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 1KB
                                                          • SHA256 d4c148fc0d6fdcdc0506257e2e6fd4a25fe94693cb39d82bcfbbbb01637a8c27
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 2KB
                                                          • SHA256 d68b2ca47a5c8fc9ccfa7e242f3bfd2e3ecb08fe732b37d73d3f87217e227b85
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 2KB
                                                          • SHA256 6f9baabbc7d1ef90d8c1128b3097d6e7ad72295e8d263e68f9be5fb90fe6ba93
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 3KB
                                                          • SHA256 1dc7e8e69aa900b0ba178b3ed723b0aed4251a17ea340b387289134b04059a99
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 3KB
                                                          • SHA256 7fdbfb196a9a2a459dac40cfd64579023b6dd73f459a21f0cb9f6f31ef3e1acd
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 3KB
                                                          • SHA256 5355fb173e76a2daa5fdcf282da294327a43b21437fc29d9fbdfcd82161dd9f5
                                                          • MD5 SHA1 SHA512

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 4KB
                                                          • SHA256 5c6a09e9c9bceac624b6c93d9cd50ec9c3b38420c537bddd4f26dfbea9a008a5
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 5KB
                                                          • SHA256 f6fcd9c5ce5bc10d09975733d5a4880d4ec455d81f420c0dd4ee4a36b7010f5f
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 5KB
                                                          • SHA256 6116afa74c49f0c797242bf7e9900f465518792fe86d2e678f2cf778166a0932
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 7KB
                                                          • SHA256 5b22b82bf996cafba4ad5dd915b426f4f32c510bfe3b3136974b1e105941e8a3
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 7KB
                                                          • SHA256 4e3b310576a8fa413f83e7068dfaacd1a82c9e720a5ccb143b758b827d0b996c
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 9KB
                                                          • SHA256 29c507e0d5eec9b50ce4a296ba88bc878603a432aeb6a4334f8013a1b1310510
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 10KB
                                                          • SHA256 6a1aad4377df69a7311e45541f6cbec2e42177c37c7d1ff2a8340554673da411
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 15KB
                                                          • SHA256 7af912c582b50346b5d0dabd6ec7ac61fcee539901f758ce2a9affab90a7f32e
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 16KB
                                                          • SHA256 573a65946722e64288bf7dedf5d3993754431371ed2d3b9914234e8eba655e8d
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISDGQNG.cfg

                                                          • Path C:\ProgramData\ISRTUVXRG\ISDGQNG.cfg
                                                          • Size 16KB
                                                          • SHA256 8a3c5ce4fa15e1f77fe557e82c64c191e99b4fc2555e3d4a6faf2a8ce7682140
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          6268.mof

                                                          • Path C:\Users\Admin\AppData\Local\Temp\Fake AV\6268.mof
                                                          • Size 344B
                                                          • SHA256 3c77f5f888d417a7a31284cb8c5e3bdb4d926c4a274cecac8a8b2920659d5927
                                                          • MD5 SHA1 SHA512

                                                          prefs.js

                                                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\0rowjuc9.default-release\prefs.js
                                                          • Size 6KB
                                                          • SHA256 55a06c795d961bd867e893943bb44dbef56b30cb5bd1005cfb73cfd870f4586b
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          host_new

                                                          • Path C:\Windows\System32\drivers\etc\host_new
                                                          • Size 977B
                                                          • SHA256 600d914eb6b9ffb387be5b7300ca138192a4e86c4679c9bff36bcf0364e74b36
                                                          • MD5 SHA1 SHA512

                                                          ISd8b.exe

                                                          • Path \ProgramData\950a2\ISd8b.exe
                                                          • Size 1.9MB
                                                          • SHA256 ae0c64f062dc58bb2fc49defde49ec237868b1e76eb58ef10638c1159e97bc35
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISd8b.exe

                                                          • Path \ProgramData\950a2\ISd8b.exe
                                                          • Size 2.4MB
                                                          • SHA256 f6ff2170e4fe8480ce8ba96a279378a8113b4b860eda894ec0529bfdcbdd648c
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          ISd8b.exe

                                                          • Path \ProgramData\950a2\ISd8b.exe
                                                          • Size 2.8MB
                                                          • SHA256 40671c721a6aaa4e42350c8709b3aceccaf051ff568035d976e06b0278616d53
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          memory/2528-604-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-418-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-0-0x0000000000240000-0x0000000000241000-memory.dmp

                                                          memory/2528-416-0x0000000000240000-0x0000000000241000-memory.dmp

                                                          memory/2528-602-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-439-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-609-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-500-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-611-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-614-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-615-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-616-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-617-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-618-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-619-0x0000000013140000-0x0000000013764000-memory.dmp

                                                          memory/2528-620-0x0000000013140000-0x0000000013764000-memory.dmp