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Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2023, 18:57

General

  • Target

    3d907374099b884d811265686b4a9e91045d99f7aa4d8b27abb4ef557ce2298a.exe

  • Size

    183KB

  • MD5

    f2442546acf495af0a54f0bbfc4c224f

  • SHA1

    e4ba49d00e72f45bb2095a7d70263652242ffb78

  • SHA256

    3d907374099b884d811265686b4a9e91045d99f7aa4d8b27abb4ef557ce2298a

  • SHA512

    ffc0f73f77a83df2b28309403bdc3e77e877bb097b9547a0c381c3f8eeb635fa2bac9e42c66a86b1d5594158f415cc85b2cbf5a77718af24ea4d030a3e49a3c5

  • SSDEEP

    3072:riJn6WhwO+Tl+NMS3y9OeS5zkzKWRo7vd/G4+cLfxub5it5AZETO8ApdBX7DJ:riJ6mwO+Tl+NZC9Oe7vwvdRfxubA5+dR

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 40 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

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

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:60
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2324
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2444
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2344
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:3412
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3860
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3768
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3664
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:3272
                      • C:\Users\Admin\AppData\Local\Temp\3d907374099b884d811265686b4a9e91045d99f7aa4d8b27abb4ef557ce2298a.exe
                        "C:\Users\Admin\AppData\Local\Temp\3d907374099b884d811265686b4a9e91045d99f7aa4d8b27abb4ef557ce2298a.exe"
                        2⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Disables RegEdit via registry modification
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops autorun.inf file
                        • Drops file in Program Files directory
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:1928
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4356
                      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                        1⤵
                          PID:3924
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                          1⤵
                            PID:1416
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3800
                            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                              1⤵
                                PID:3948
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:792
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:784
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:4648
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:1208

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\ospvg.exe

                                        Filesize

                                        100KB

                                        MD5

                                        bb0383d787aa65cac4c3d94fff802ad3

                                        SHA1

                                        4d40fef5d27f2735f6b6c9e2621f51d66da33975

                                        SHA256

                                        f9f234d13233b16d02c1b8d3205745af921ea4ca8ac060bbc435358f62653c7c

                                        SHA512

                                        ea563f345614756e2e170f26ebd0a977b9f6c4787e37845ed97e43867b918610e529a92f986b2dc1968c26888e0c84056eee432b6d0c6f272a2dfec9ace52349

                                      • memory/1928-26-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-18-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-4-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-5-0x0000000002220000-0x0000000002222000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/1928-6-0x0000000003910000-0x0000000003911000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/1928-9-0x0000000002220000-0x0000000002222000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/1928-7-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-10-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-11-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-12-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-13-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-14-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-15-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-33-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-17-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-30-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-19-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-21-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-22-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-23-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-25-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-0-0x0000000000400000-0x0000000000429000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/1928-3-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-28-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-16-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-35-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-37-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-39-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-41-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-43-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-44-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-50-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-52-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-53-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-54-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-55-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-56-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-59-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-61-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-62-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-63-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-64-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-66-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1928-69-0x0000000002220000-0x0000000002222000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/1928-1-0x0000000002340000-0x00000000033CE000-memory.dmp

                                        Filesize

                                        16.6MB