Analysis

  • max time kernel
    123s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2024, 23:48

General

  • Target
    2d2a97bdcf933acc35961a3b4cd860f7a5549f747719d26d056c87bf80517331.exe
  • Size 1.4MB
  • Sample240219-3tkvcagc46
  • SHA256 2d2a97bdcf933acc35961a3b4cd860f7a5549f747719d26d056c87bf80517331
  • MD5 SHA1 SHA512 SSDEEP

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 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 39 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 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:776
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:316
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:772
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2700
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3944
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4008
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                1⤵
                  PID:3832
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3648
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:3524
                      • C:\Users\Admin\AppData\Local\Temp\2d2a97bdcf933acc35961a3b4cd860f7a5549f747719d26d056c87bf80517331.exe
                        "C:\Users\Admin\AppData\Local\Temp\2d2a97bdcf933acc35961a3b4cd860f7a5549f747719d26d056c87bf80517331.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
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:3332
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:1104
                      • 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:2844
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:1720
                          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                            1⤵
                              PID:4088
                            • C:\Windows\system32\taskhostw.exe
                              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                              1⤵
                                PID:2752
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2660

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      ruggdt.exe

                                      • Path F:\ruggdt.exe
                                      • Size 97KB
                                      • SHA256 cbdd69477e13be16659e0f6f973f6eec35de48a1df16d5d2b22a4e01ed429e9d
                                      • MD5 SHA1 SHA512 SSDEEP

                                      memory/3332-31-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-3-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-4-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-5-0x0000000004240000-0x0000000004242000-memory.dmp

                                      memory/3332-6-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-9-0x0000000004240000-0x0000000004242000-memory.dmp

                                      memory/3332-7-0x0000000004390000-0x0000000004391000-memory.dmp

                                      memory/3332-10-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-16-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-17-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-18-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-19-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-20-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-21-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-22-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-23-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-24-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-25-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-27-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-28-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-34-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-29-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-0-0x0000000000400000-0x0000000000565000-memory.dmp

                                      memory/3332-36-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-38-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-41-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-43-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-45-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-47-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-49-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-51-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-53-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-55-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-57-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-58-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-59-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-60-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-61-0x0000000004240000-0x0000000004242000-memory.dmp

                                      memory/3332-62-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-69-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-71-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-73-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-75-0x0000000002500000-0x00000000035BA000-memory.dmp

                                      memory/3332-1-0x0000000002500000-0x00000000035BA000-memory.dmp