Analysis

  • max time kernel
    22s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 01:39

General

  • Target
    a9b2c4abe77c59be6c8c435d4b670e1df332e3e557deb0608fb61f8264a7200f.exe
  • Size 740KB
  • Sample240620-b23xca1gnc
  • SHA256 a9b2c4abe77c59be6c8c435d4b670e1df332e3e557deb0608fb61f8264a7200f
  • 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

  • http://www.klkjwre9fqwieluoi.info/

  • http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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 40 IoCs
  • UPX dump on OEP (original entry point) 41 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 39 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:776
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:784
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:1016
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2888
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:3004
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:428
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3412
                  • C:\Users\Admin\AppData\Local\Temp\a9b2c4abe77c59be6c8c435d4b670e1df332e3e557deb0608fb61f8264a7200f.exe
                    "C:\Users\Admin\AppData\Local\Temp\a9b2c4abe77c59be6c8c435d4b670e1df332e3e557deb0608fb61f8264a7200f.exe"
                    2⤵
                    • Modifies firewall policy service
                    • Modifies visibility of file extensions in Explorer
                    • Modifies visiblity of hidden/system files in Explorer
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Adds Run key to start application
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:1456
                    • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
                      C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
                      3⤵
                      • Modifies firewall policy service
                      • Modifies visiblity of hidden/system files in Explorer
                      • UAC bypass
                      • Windows security bypass
                      • Deletes itself
                      • Executes dropped EXE
                      • Windows security modification
                      • Checks whether UAC is enabled
                      • Enumerates connected drives
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:1432
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3580
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3764
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3860
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3924
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4000
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3568
                            • 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:3076
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4932

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      rundll32.exe

                                      • Path C:\Users\Admin\AppData\Local\Temp\0E57421A_Rar\rundll32.exe
                                      • Size 664KB
                                      • SHA256 e1b9beb4617a720d55afaec364941bb18ea2c456a8b06b30a736f0cbb5c297e8
                                      • MD5 SHA1 SHA512 SSDEEP

                                      rundll32.exe

                                      • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
                                      • Size 740KB
                                      • SHA256 a9b2c4abe77c59be6c8c435d4b670e1df332e3e557deb0608fb61f8264a7200f
                                      • MD5 SHA1 SHA512 SSDEEP

                                      SYSTEM.INI

                                      • Path C:\Windows\SYSTEM.INI
                                      • Size 257B
                                      • SHA256 66e741efdcea1cae69be820497bb66374139cdcfd5da26fc674f27117c98201a
                                      • MD5 SHA1 SHA512

                                      lglme.pif

                                      • Path C:\lglme.pif
                                      • Size 100KB
                                      • SHA256 34067c9f1011e5ad5b0bf3e6a6cfdbd51e9a0b8005318daf23648c4dd27c23cd
                                      • MD5 SHA1 SHA512 SSDEEP

                                      memory/1432-66-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-70-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-143-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-142-0x0000000000400000-0x00000000004C1000-memory.dmp

                                      memory/1432-113-0x00000000074F0000-0x00000000074F2000-memory.dmp

                                      memory/1432-102-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-85-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-46-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-81-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-78-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-76-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-74-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-73-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-59-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-71-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-63-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-69-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-58-0x00000000074F0000-0x00000000074F2000-memory.dmp

                                      memory/1432-49-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-67-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-54-0x0000000007A40000-0x0000000007A41000-memory.dmp

                                      memory/1432-56-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-57-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-60-0x00000000074F0000-0x00000000074F2000-memory.dmp

                                      memory/1432-65-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-83-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-64-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-52-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-51-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-50-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1432-48-0x0000000004EE0000-0x0000000005F6E000-memory.dmp

                                      memory/1456-34-0x00000000075F0000-0x00000000075F2000-memory.dmp

                                      memory/1456-0-0x0000000000400000-0x00000000004C1000-memory.dmp

                                      memory/1456-15-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-4-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-24-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-6-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-42-0x0000000000400000-0x00000000004C1000-memory.dmp

                                      memory/1456-30-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-10-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-21-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-20-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-13-0x0000000007A40000-0x0000000007A41000-memory.dmp

                                      memory/1456-7-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-12-0x00000000075F0000-0x00000000075F2000-memory.dmp

                                      memory/1456-14-0x00000000075F0000-0x00000000075F2000-memory.dmp

                                      memory/1456-17-0x00000000075F0000-0x00000000075F2000-memory.dmp

                                      memory/1456-18-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-1-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-16-0x0000000002E90000-0x0000000003F1E000-memory.dmp

                                      memory/1456-5-0x0000000002E90000-0x0000000003F1E000-memory.dmp