Analysis

  • max time kernel
    123s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 01:12

General

  • Target

    cbdda3f2127d70441f8828429648844a86d8fd7ba2d32d5cfe9f4d1344d17c9a.exe

  • Size

    4.0MB

  • MD5

    bdab2b15593722adafd73ba2d26ae718

  • SHA1

    27f4f056c95b461247f04deda34c6f03554df2a5

  • SHA256

    cbdda3f2127d70441f8828429648844a86d8fd7ba2d32d5cfe9f4d1344d17c9a

  • SHA512

    6cbb5bdc7075c11a3a19e465b1a74caefa4b90eb71e7d97ca37a3bd3f37a0c78e48530222372c14833dafddd7e4bf7f76d4886fe6c86bd7f826002bc16515c7e

  • SSDEEP

    98304:rVZj1RH+mvYUhV6whv+L4pikdbHE9QXA/7Z:r7++YlWdXS9

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 39 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
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • 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 12 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 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:768
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:772
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:64
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2516
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2600
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2724
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3420
                  • C:\Users\Admin\AppData\Local\Temp\cbdda3f2127d70441f8828429648844a86d8fd7ba2d32d5cfe9f4d1344d17c9a.exe
                    "C:\Users\Admin\AppData\Local\Temp\cbdda3f2127d70441f8828429648844a86d8fd7ba2d32d5cfe9f4d1344d17c9a.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Enumerates connected drives
                    • 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 WriteProcessMemory
                    • System policy modification
                    PID:4872
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3608
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3816
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3924
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3984
                        • 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\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4124
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:4504
                              • 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:5260
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:5332
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:3728
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:4376

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\ysyj.exe

                                        Filesize

                                        97KB

                                        MD5

                                        d837b3f9627fe838322279e8ee5e813d

                                        SHA1

                                        e4c0f8b2bdd2972c3d5beff73d40e55a0d6064c4

                                        SHA256

                                        06154976dbfbfc20fb2a9cfdd6eb387576fabe92a112e9bd9f0d984f6108adad

                                        SHA512

                                        10ff7d75fde8ba47812f633143f62732eb52f0e821857582decb6ef3721f4ad528f0811629e35975a0001b5e3460191964d934d4c868f0eb4907994f621e0d99

                                      • memory/4872-31-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-73-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-15-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-7-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-16-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-21-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-20-0x0000000003B00000-0x0000000003B02000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/4872-19-0x0000000004B80000-0x0000000004B81000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4872-18-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-17-0x0000000003B00000-0x0000000003B02000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/4872-9-0x0000000003B10000-0x0000000003B11000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4872-5-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-3-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-8-0x0000000003B00000-0x0000000003B02000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/4872-30-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-22-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-24-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-23-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-25-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-26-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-27-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-29-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-1-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-4-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-48-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-34-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-36-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-38-0x0000000000400000-0x000000000080C000-memory.dmp

                                        Filesize

                                        4.0MB

                                      • memory/4872-39-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-42-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-44-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-46-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-33-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-50-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-53-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-54-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-62-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-63-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-66-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-68-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-70-0x0000000004B80000-0x0000000004B81000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4872-72-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-0-0x0000000000400000-0x000000000080C000-memory.dmp

                                        Filesize

                                        4.0MB

                                      • memory/4872-75-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-77-0x0000000003B00000-0x0000000003B02000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/4872-78-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-82-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/4872-6-0x0000000002740000-0x00000000037FA000-memory.dmp

                                        Filesize

                                        16.7MB