Analysis

  • max time kernel
    1s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2024, 09:54

General

  • Target

    c67d131373e5e00778d94b188331362e.exe

  • Size

    97KB

  • MD5

    c67d131373e5e00778d94b188331362e

  • SHA1

    f7b5c808c8d9d2861c1cd564ad7269f58907d6ff

  • SHA256

    9a3940f8efd743b121307fc85b52adeb6172d6f2c4f386c3c4cab29f18c2d272

  • SHA512

    5c67ed2572f429cfe6991a58b430fde5383210e393d6e611fcf10cfe28475c6e799446db18bedc454452265441fe7f7196f55075e1129ca5d1d12aa3606b6c61

  • SSDEEP

    3072:PQbdYqdLQJWYSJlmsTPUMcRK59WrIHhUA:obdYqRY2/QK59WrIHhUA

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 11 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
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:768
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:64
      • C:\Users\Admin\AppData\Local\Temp\c67d131373e5e00778d94b188331362e.exe
        "C:\Users\Admin\AppData\Local\Temp\c67d131373e5e00778d94b188331362e.exe"
        1⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Windows security modification
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1716
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:536
        • C:\Windows\system32\backgroundTaskHost.exe
          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
          1⤵
            PID:2592
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
            1⤵
              PID:3528
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:1284
              • 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:3536
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3812
                  • 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:3912
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3848
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3728
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3544
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3340
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:3048
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2812
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2760
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:772

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            • memory/1716-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/1716-2-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-4-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-7-0x00000000044F0000-0x00000000044F1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1716-5-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-10-0x0000000004390000-0x0000000004392000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1716-11-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-8-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-17-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-6-0x0000000004390000-0x0000000004392000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1716-18-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-19-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-20-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-21-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-22-0x00000000007F0000-0x00000000018AA000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/1716-23-0x0000000004390000-0x0000000004392000-memory.dmp

                                              Filesize

                                              8KB