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Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2023, 16:06

General

  • Target

    2bbb76dfa85550ef8f69f58006efb410.exe

  • Size

    416KB

  • MD5

    2bbb76dfa85550ef8f69f58006efb410

  • SHA1

    6811ec43e5216065ef28f4c88ad7717057cc1b07

  • SHA256

    5d6b895e208226d99be411502f243df8a6cd56d536d17bbd7f4e8a89cb407d4a

  • SHA512

    20b9e00fa199192370772cc98bee0eb9e152f1650d8e15f91fdd5e79b24d516e2f9428de3d6bb7939cd857a9dd20896c03b58fd6750989dfa167d3e61edb5d5e

  • SSDEEP

    12288:elQ8fXEBvuwjInnLEzRi1Al/P9QpNZ4PuYu7:ehEBWwMLgiU/PSrZ4PuT7

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 WinLogon for persistence 2 TTPs 1 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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • UPX packed file 19 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 8 IoCs
  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 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:780
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:380
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3976
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3872
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
            1⤵
              PID:1868
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
              1⤵
                PID:3316
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                1⤵
                  PID:3292
                • 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:5012
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:2332
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4172
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:4068
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3780
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3536
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3380
                                • C:\Users\Admin\AppData\Local\Temp\2bbb76dfa85550ef8f69f58006efb410.exe
                                  "C:\Users\Admin\AppData\Local\Temp\2bbb76dfa85550ef8f69f58006efb410.exe"
                                  2⤵
                                  • Modifies WinLogon for persistence
                                  • UAC bypass
                                  • Windows security bypass
                                  • Disables RegEdit via registry modification
                                  • Windows security modification
                                  • Adds Run key to start application
                                  • Checks whether UAC is enabled
                                  • Enumerates connected drives
                                  • Drops file in System32 directory
                                  • 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:4948
                                  • C:\Windows\SysWOW64\netsh.exe
                                    netsh firewall set opmode disable
                                    3⤵
                                    • Modifies Windows Firewall
                                    PID:3532
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /C AT /delete /yes
                                    3⤵
                                    • Suspicious use of WriteProcessMemory
                                    PID:1908
                                    • C:\Windows\SysWOW64\at.exe
                                      AT /delete /yes
                                      4⤵
                                        PID:4128
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\blastclnnn.exe
                                      3⤵
                                      • Suspicious use of WriteProcessMemory
                                      PID:3092
                                      • C:\Windows\SysWOW64\at.exe
                                        AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\blastclnnn.exe
                                        4⤵
                                          PID:3884
                                      • C:\Windows\SysWOW64\NOTEPAD.EXE
                                        "C:\Windows\system32\NOTEPAD.EXE"
                                        3⤵
                                          PID:2104
                                        • C:\Windows\SysWOW64\NOTEPAD.EXE
                                          "C:\Windows\system32\NOTEPAD.EXE"
                                          3⤵
                                            PID:2928
                                      • C:\Windows\system32\taskhostw.exe
                                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                        1⤵
                                          PID:3044
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                          1⤵
                                            PID:2940
                                          • C:\Windows\system32\sihost.exe
                                            sihost.exe
                                            1⤵
                                              PID:2796
                                            • C:\Windows\system32\fontdrvhost.exe
                                              "fontdrvhost.exe"
                                              1⤵
                                                PID:784
                                              • C:\Windows\System32\RuntimeBroker.exe
                                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                1⤵
                                                  PID:4120
                                                • C:\Windows\System32\RuntimeBroker.exe
                                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                  1⤵
                                                    PID:980
                                                  • C:\Windows\System32\wuapihost.exe
                                                    C:\Windows\System32\wuapihost.exe -Embedding
                                                    1⤵
                                                      PID:2928
                                                    • C:\Windows\system32\backgroundTaskHost.exe
                                                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                                      1⤵
                                                        PID:4892
                                                      • C:\Windows\System32\RuntimeBroker.exe
                                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                        1⤵
                                                          PID:4960
                                                        • C:\Windows\system32\BackgroundTransferHost.exe
                                                          "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                                                          1⤵
                                                            PID:4416

                                                          Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

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                                                          Downloads

                                                          • C:\Windows\SysWOW64\autorun.ini

                                                            Filesize

                                                            106B

                                                            MD5

                                                            461844e7b27354ffb9b1f5cafc529c64

                                                            SHA1

                                                            f3ee2f507999a91ad23366c65f06159d79ec5478

                                                            SHA256

                                                            e7deff408c17012d4a2ed9399301e10253dfb74db882ee557b09c319b7be86ba

                                                            SHA512

                                                            e2e3fe4962ee8a3bbbff1df45782ac2281ccd67cb7598c2d47fcc36ae1c5a667e1465afd138c1e491014348b381f31d75e1ccee739db81892217ada0380c0c57

                                                          • C:\Windows\SysWOW64\setting.ini

                                                            Filesize

                                                            277KB

                                                            MD5

                                                            f9a8d802def53de707dde40f77b1d060

                                                            SHA1

                                                            5221f77661a01f87fc3701a51bab773ab7ce92f2

                                                            SHA256

                                                            0e5d2c97035129e4e75fd14454728ea8bda99173a5940a43257af910c7f80733

                                                            SHA512

                                                            d72af1ad6f90fb73383fa5b4b64895ea05437f1b00d99ee32c33555127ff387ec366e9c30b59bcf0778c0411c9053f61478cb64bb4af4644897de61098e13078

                                                          • C:\Windows\scvshosts.exe

                                                            Filesize

                                                            416KB

                                                            MD5

                                                            2bbb76dfa85550ef8f69f58006efb410

                                                            SHA1

                                                            6811ec43e5216065ef28f4c88ad7717057cc1b07

                                                            SHA256

                                                            5d6b895e208226d99be411502f243df8a6cd56d536d17bbd7f4e8a89cb407d4a

                                                            SHA512

                                                            20b9e00fa199192370772cc98bee0eb9e152f1650d8e15f91fdd5e79b24d516e2f9428de3d6bb7939cd857a9dd20896c03b58fd6750989dfa167d3e61edb5d5e

                                                          • memory/2104-127-0x00000000001B0000-0x00000000001C7000-memory.dmp

                                                            Filesize

                                                            92KB

                                                          • memory/2104-126-0x0000000000170000-0x0000000000171000-memory.dmp

                                                            Filesize

                                                            4KB

                                                          • memory/2928-136-0x0000000000A40000-0x0000000000A57000-memory.dmp

                                                            Filesize

                                                            92KB

                                                          • memory/4948-38-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-61-0x00000000045B0000-0x00000000045B2000-memory.dmp

                                                            Filesize

                                                            8KB

                                                          • memory/4948-13-0x00000000045B0000-0x00000000045B2000-memory.dmp

                                                            Filesize

                                                            8KB

                                                          • memory/4948-23-0x0000000000400000-0x00000000004A7000-memory.dmp

                                                            Filesize

                                                            668KB

                                                          • memory/4948-24-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-25-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-9-0x00000000045B0000-0x00000000045B2000-memory.dmp

                                                            Filesize

                                                            8KB

                                                          • memory/4948-32-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-0-0x0000000000400000-0x00000000004A7000-memory.dmp

                                                            Filesize

                                                            668KB

                                                          • memory/4948-42-0x0000000000400000-0x00000000004A7000-memory.dmp

                                                            Filesize

                                                            668KB

                                                          • memory/4948-52-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-11-0x0000000006C80000-0x0000000006C81000-memory.dmp

                                                            Filesize

                                                            4KB

                                                          • memory/4948-59-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-68-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-69-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-71-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-77-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-6-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-112-0x0000000000400000-0x00000000004A7000-memory.dmp

                                                            Filesize

                                                            668KB

                                                          • memory/4948-5-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB

                                                          • memory/4948-2-0x0000000000400000-0x00000000004A7000-memory.dmp

                                                            Filesize

                                                            668KB

                                                          • memory/4948-1-0x00000000032F0000-0x0000000004323000-memory.dmp

                                                            Filesize

                                                            16.2MB