Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2024 01:09

General

  • Target

    b95f42c66f6989263792fb1915222b495e7e55386de625d0b4671de6767a08e8.exe

  • Size

    2.4MB

  • MD5

    2f93a73b9f790ee7d672caa33c527d78

  • SHA1

    9a3f71ea06cd9819f82c3d4dbb271986975c7845

  • SHA256

    b95f42c66f6989263792fb1915222b495e7e55386de625d0b4671de6767a08e8

  • SHA512

    a14b924cd8ca31b0cb48c4f8465e04458197d6a934c0d08742f96e842c5f3924c8eba192f68b6c550c221f8aea8e1aab351252e1348b26022e4b8ce3e9e12d70

  • SSDEEP

    49152:7NHBYCfHLr3AZAUouIho0rDCEJNOy3ZbtOEeKD58Gy8ra52vk:7hhDUZ9ozLHJ0gtbD508rbvk

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

Signatures

  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • UPX packed file 14 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:772
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:780
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:380
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2788
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2900
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2984
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3500
                  • C:\Users\Admin\AppData\Local\Temp\b95f42c66f6989263792fb1915222b495e7e55386de625d0b4671de6767a08e8.exe
                    "C:\Users\Admin\AppData\Local\Temp\b95f42c66f6989263792fb1915222b495e7e55386de625d0b4671de6767a08e8.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                    • Checks BIOS information in registry
                    • Identifies Wine through registry keys
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                    • Drops file in Windows directory
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:3108
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3616
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3800
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3900
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3968
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4056
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4228
                            • 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:844
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3360
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:1580
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:3984

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

                                    • memory/3108-0-0x0000000000400000-0x00000000008B0000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/3108-1-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-6-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-5-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-12-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-16-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-15-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-21-0x0000000000DB0000-0x0000000000DB2000-memory.dmp

                                      Filesize

                                      8KB

                                    • memory/3108-20-0x0000000000DB0000-0x0000000000DB2000-memory.dmp

                                      Filesize

                                      8KB

                                    • memory/3108-19-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-18-0x0000000004700000-0x0000000004701000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3108-17-0x0000000000DB0000-0x0000000000DB2000-memory.dmp

                                      Filesize

                                      8KB

                                    • memory/3108-13-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-4-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-3-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-14-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-22-0x0000000000400000-0x00000000008B0000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/3108-24-0x0000000000400000-0x00000000008B0000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/3108-25-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-23-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-26-0x00000000093F0000-0x0000000009994000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/3108-27-0x0000000002740000-0x00000000037FA000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/3108-42-0x0000000000400000-0x00000000008B0000-memory.dmp

                                      Filesize

                                      4.7MB