Analysis

  • max time kernel
    152s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 11:46

General

  • Target

    67b66bb6a09175d363181edea92fb9bf5920480f2166dcf6d784a0d7bc3b9ede.exe

  • Size

    100KB

  • MD5

    8017c8de7d2bec0161382d57cdc42042

  • SHA1

    bca24fca5ddcd319f072ac83a854d0cab7e347fb

  • SHA256

    67b66bb6a09175d363181edea92fb9bf5920480f2166dcf6d784a0d7bc3b9ede

  • SHA512

    1b281b436ade5fd5a69ef93b47713b35096dd17b56ce167c6221a6040c828882308bb582fca765dc904d7c43510a65bbf8e504ad7228385b298af593a094920b

  • SSDEEP

    3072:od+3BFfdBp435jq0g/BeipWj3q5cOkaxwpb3jT:od+3jZ435jq0g8KWj3q5cOlxWP

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 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 3 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 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

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

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 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:804
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:404
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:812
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2528
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
              PID:968
              • C:\Users\Admin\AppData\Local\Temp\67b66bb6a09175d363181edea92fb9bf5920480f2166dcf6d784a0d7bc3b9ede.exe
                "C:\Users\Admin\AppData\Local\Temp\67b66bb6a09175d363181edea92fb9bf5920480f2166dcf6d784a0d7bc3b9ede.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:1576
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:3096
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3540
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3684
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3452
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3388
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3280
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2892
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2656
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:2360
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4640

                                Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/1576-132-0x0000000000400000-0x0000000000416000-memory.dmp

                                        Filesize

                                        88KB

                                      • memory/1576-133-0x00000000021A0000-0x000000000322E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1576-134-0x00000000021A0000-0x000000000322E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1576-135-0x00000000021A0000-0x000000000322E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1576-136-0x0000000000400000-0x0000000000416000-memory.dmp

                                        Filesize

                                        88KB