Analysis

  • max time kernel
    124s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 06:35

General

  • Target

    2bde763b72af5906018a546aa9de3e8f.exe

  • Size

    100KB

  • MD5

    2bde763b72af5906018a546aa9de3e8f

  • SHA1

    01d6e19db56e3637e3f874123400aa4f10fe39c9

  • SHA256

    1e9adeb5f82c163f864f24e3269ba196bea6b8f5d1a9675bd9b197d78bd11848

  • SHA512

    a9adf9e27265583d44c7baffd4493879433d73112d84431f49df015e02cef23b2ca0abf49f6578f08cb26ece5dc974acfa84d49b09e0743d432c02bc9dab3a45

  • SSDEEP

    1536:VQ5sKLG49vNG7U3U3AMoUoDYhgOHUJvt21EUCUAHJwsPe6g/x:VCJ9vNQsU3PkDUgOHUJV2OkFw+x

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
  • UPX packed file 37 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
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:784
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:324
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3888
        • C:\Windows\system32\backgroundTaskHost.exe
          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
          1⤵
            PID:2548
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
            1⤵
              PID:2920
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
              1⤵
                PID:832
              • 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:1544
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:1936
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3608
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      1⤵
                        PID:3972
                      • 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:3676
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3472
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3332
                                • C:\Users\Admin\AppData\Local\Temp\2bde763b72af5906018a546aa9de3e8f.exe
                                  "C:\Users\Admin\AppData\Local\Temp\2bde763b72af5906018a546aa9de3e8f.exe"
                                  2⤵
                                  • Modifies firewall policy service
                                  • UAC bypass
                                  • Windows security bypass
                                  • 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
                                  • Modifies registry class
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of WriteProcessMemory
                                  • System policy modification
                                  PID:4780
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2824
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2524
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2508
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:792
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4512
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:2540
                                          • C:\Windows\system32\backgroundTaskHost.exe
                                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                            1⤵
                                              PID:4140

                                            Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

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                                                  Downloads

                                                  • F:\kfwws.exe

                                                    Filesize

                                                    100KB

                                                    MD5

                                                    041b2a349cb80481dc46f76037d80bcc

                                                    SHA1

                                                    6a0763e077bf48fefb50d341bdbd33729be45051

                                                    SHA256

                                                    8c8de4516ed3dd3a9751a9690c1b60c63f31554163df64cb7f4587e4b9b2c266

                                                    SHA512

                                                    3745fe27f7df88081a7e01764dafccd7cda853bb09eef2fca08df46b677fe6f4a2534b601fbd2938305adbd3e7535e66cb33cccf6c3e845c210c380fcce61370

                                                  • memory/4780-24-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-27-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-29-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-8-0x00000000033F0000-0x00000000033F1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/4780-7-0x00000000033E0000-0x00000000033E2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4780-10-0x00000000033E0000-0x00000000033E2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4780-6-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-11-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-12-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-13-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-14-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-15-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-16-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-17-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-18-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-19-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-20-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-22-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-23-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-0-0x0000000000400000-0x0000000000413000-memory.dmp

                                                    Filesize

                                                    76KB

                                                  • memory/4780-4-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-26-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-5-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-31-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-34-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-36-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-38-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-40-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-42-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-44-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-47-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-53-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-56-0x00000000033E0000-0x00000000033E2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4780-55-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-58-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-60-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-62-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-64-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-66-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-68-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-69-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/4780-2-0x00000000022D0000-0x000000000335E000-memory.dmp

                                                    Filesize

                                                    16.6MB