Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 22:26

General

  • Target
    49cd4833a4eb221f1d6b39d91fbe66bd11829bc6df89d570064ac1be37a45c2e.dll
  • Size 120KB
  • Sample240613-2cwpvasgkc
  • SHA256 49cd4833a4eb221f1d6b39d91fbe66bd11829bc6df89d570064ac1be37a45c2e
  • 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 6 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 32 IoCs
  • UPX dump on OEP (original entry point) 36 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 33 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 15 IoCs

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

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:788
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:796
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:384
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2624
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2736
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2980
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3404
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\49cd4833a4eb221f1d6b39d91fbe66bd11829bc6df89d570064ac1be37a45c2e.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1720
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\49cd4833a4eb221f1d6b39d91fbe66bd11829bc6df89d570064ac1be37a45c2e.dll,#1
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3972
                      • C:\Users\Admin\AppData\Local\Temp\e573ac7.exe
                        C:\Users\Admin\AppData\Local\Temp\e573ac7.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • 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:4628
                      • C:\Users\Admin\AppData\Local\Temp\e573c8c.exe
                        C:\Users\Admin\AppData\Local\Temp\e573c8c.exe
                        4⤵
                        • Executes dropped EXE
                        PID:864
                      • C:\Users\Admin\AppData\Local\Temp\e57598a.exe
                        C:\Users\Admin\AppData\Local\Temp\e57598a.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:2276
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3564
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3748
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3836
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3900
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4020
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4100
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:4460
                              • 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:1088
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:320
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                    1⤵
                                      PID:116
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:212
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:2764

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              e573ac7.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\e573ac7.exe
                                              • Size 97KB
                                              • SHA256 da3b0a3077bbd5641bdb7e60b53f6327b2022eae36e603be8b056c5d6e48a157
                                              • MD5 SHA1 SHA512 SSDEEP

                                              SYSTEM.INI

                                              • Path C:\Windows\SYSTEM.INI
                                              • Size 257B
                                              • SHA256 f18609b6e9037912c0103fe13fbd820502120c99ac9a7481191f617cf2d936ac
                                              • MD5 SHA1 SHA512

                                              memory/864-58-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              memory/864-55-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                              memory/864-60-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              memory/864-108-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/2276-61-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              memory/2276-153-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/2276-152-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                              memory/2276-110-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                              memory/2276-57-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                              memory/2276-59-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              memory/3972-13-0x0000000004770000-0x0000000004772000-memory.dmp

                                              memory/3972-17-0x0000000004770000-0x0000000004772000-memory.dmp

                                              memory/3972-22-0x0000000004770000-0x0000000004772000-memory.dmp

                                              memory/3972-23-0x0000000004800000-0x0000000004801000-memory.dmp

                                              memory/3972-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                              memory/4628-42-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-63-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-16-0x0000000003D30000-0x0000000003D31000-memory.dmp

                                              memory/4628-9-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-36-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-37-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-38-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-39-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-40-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-20-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-43-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-52-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-53-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-21-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-31-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-34-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-33-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-32-0x0000000000640000-0x0000000000642000-memory.dmp

                                              memory/4628-25-0x0000000000640000-0x0000000000642000-memory.dmp

                                              memory/4628-12-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-64-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-65-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-69-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-70-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-73-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-74-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-82-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-83-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-84-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-95-0x0000000000640000-0x0000000000642000-memory.dmp

                                              memory/4628-89-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-104-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/4628-11-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-10-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-7-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-6-0x0000000000850000-0x000000000190A000-memory.dmp

                                              memory/4628-5-0x0000000000400000-0x0000000000412000-memory.dmp