Analysis

  • max time kernel
    122s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-05-2024 18:24

General

  • Target

    063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.exe

  • Size

    97KB

  • MD5

    631f0e7280c331a270d5609f0a5702e6

  • SHA1

    406dabea70eb3d331cc04fcc605976b2f0a093a7

  • SHA256

    063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78

  • SHA512

    c68d6316445995f3033cb56add5e9b403d4554a016ddff23c6176e199b648f1eef9791de33516fadd7c967bfe93399771f519a2ac21714b4ac0210f33096cbc4

  • SSDEEP

    3072:ws8/vJLndEO5zTEKJ8r3ljMp9K9ENXQ+0FR:0xLd/5zTDolj+9KAr

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 42 IoCs
  • UPX dump on OEP (original entry point) 42 IoCs
  • UPX packed file 42 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
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 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:800
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:808
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:384
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:3012
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:3036
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2828
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3424
                  • C:\Users\Admin\AppData\Local\Temp\063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.exe
                    "C:\Users\Admin\AppData\Local\Temp\063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.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
                    • Modifies registry class
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:1712
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3576
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3756
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3852
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3920
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4008
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4148
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:2136
                              • 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:2812
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:3496
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:348
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:4188
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4492

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • F:\yblgdy.exe

                                          Filesize

                                          97KB

                                          MD5

                                          773f79619547e7b4fcd7ad0af57e55f5

                                          SHA1

                                          aa1178cbd9ed47c85438b3d1540d8b905f36e170

                                          SHA256

                                          b685759454bddcf00ceff69f13e592b85874f2cdca417e2b257b333f5d2e410d

                                          SHA512

                                          0c2e7f79b5e8e64551a6da45b8611f89b3c5a856f4c34a2e36a19acf6ee922c796518c688a0836e28c8a866e0096efd76dca51471f10d2491df3b7479e065209

                                        • memory/1712-33-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-70-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-6-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-5-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-15-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-19-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1712-18-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-16-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-17-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1712-4-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-3-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-9-0x0000000004130000-0x0000000004131000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1712-8-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1712-20-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-32-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-23-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-22-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-24-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-25-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-26-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-29-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-31-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-21-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-7-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-48-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-36-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-39-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-41-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-42-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-43-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-44-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-47-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-35-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-50-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-56-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-57-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-60-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-63-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-64-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-65-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-67-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-69-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1712-72-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-75-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-76-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1712-77-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1712-1-0x0000000000850000-0x000000000190A000-memory.dmp

                                          Filesize

                                          16.7MB