Analysis

  • max time kernel
    131s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2024, 05:43

General

  • Target
    2024-02-20_ae6b0d6747af6e8941e2b620daab8eae_magniber.exe
  • Size 3.5MB
  • Sample240220-gerhpacb4v
  • SHA256 4cb9f5674ec4597b651ee14c8999badaa76429f7c26ca81296b7c09569899ba9
  • 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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 40 IoCs
  • UPX dump on OEP (original entry point) 40 IoCs
  • UPX packed file 40 IoCs

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

  • Windows security modification 2 TTPs 7 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 1 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.

  • 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 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:1016
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
        1⤵
          PID:2508
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:4092
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3964
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3868
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                1⤵
                  PID:3668
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:3496
                    • C:\Users\Admin\AppData\Local\Temp\2024-02-20_ae6b0d6747af6e8941e2b620daab8eae_magniber.exe
                      "C:\Users\Admin\AppData\Local\Temp\2024-02-20_ae6b0d6747af6e8941e2b620daab8eae_magniber.exe"
                      2⤵
                      • Modifies firewall policy service
                      • UAC bypass
                      • Windows security bypass
                      • Windows security modification
                      • Checks whether UAC is enabled
                      • Enumerates connected drives
                      • Writes to the Master Boot Record (MBR)
                      • 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 FindShellTrayWindow
                      • Suspicious use of SendNotifyMessage
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:4788
                  • C:\Windows\system32\taskhostw.exe
                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                    1⤵
                      PID:2696
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                        PID:2480
                      • C:\Windows\system32\fontdrvhost.exe
                        "fontdrvhost.exe"
                        1⤵
                          PID:792
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3320
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4204
                            • 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:4392
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3512

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      ComputerZ.set

                                      • Path C:\Users\Admin\AppData\Local\Temp\ComputerZ.set
                                      • Size 57B
                                      • SHA256 c51924e439331f61f23d0ec56f8780cf81f119cf5030d235e5c5de33c2721c42
                                      • MD5 SHA1 SHA512

                                      ecsr.pif

                                      • Path C:\ecsr.pif
                                      • Size 97KB
                                      • SHA256 de8f4cb81a2aa3066a9903b3412b17da84d8d4764f083282cbc5562ddb306944
                                      • MD5 SHA1 SHA512 SSDEEP

                                      memory/4788-18-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-27-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-8-0x0000000004160000-0x0000000004161000-memory.dmp

                                      memory/4788-7-0x0000000003B40000-0x0000000003B42000-memory.dmp

                                      memory/4788-9-0x0000000003B40000-0x0000000003B42000-memory.dmp

                                      memory/4788-6-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-10-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-11-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-13-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-0-0x0000000000400000-0x0000000000677000-memory.dmp

                                      memory/4788-19-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-20-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-21-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-45-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-25-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-42-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-28-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-32-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-33-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-34-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-4-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-39-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-5-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-40-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-23-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-48-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-51-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-53-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-55-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-58-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-59-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-60-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-63-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-64-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-65-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-71-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-73-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-75-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-77-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-80-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-82-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-85-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-87-0x0000000002620000-0x00000000036DA000-memory.dmp

                                      memory/4788-94-0x0000000003B40000-0x0000000003B42000-memory.dmp

                                      memory/4788-2-0x0000000002620000-0x00000000036DA000-memory.dmp