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Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2022, 19:33

General

  • Target

    73fd07c553921dbbb3c70048839882148792178db93a2ea6a56fee6fac5c2a1b.exe

  • Size

    304KB

  • MD5

    0c8fa32f2e29f6c95cde5e444760c466

  • SHA1

    2bbedb1a3be39ff375cafaedcee36d38e0042915

  • SHA256

    73fd07c553921dbbb3c70048839882148792178db93a2ea6a56fee6fac5c2a1b

  • SHA512

    7eda9781f1533384f42242ee46bdafc0443b3cebe8edbc0dc2d2baf142e902158d3c98f8aa56fa4a61ad52bc6d9129901c4d470b1670a13d2faae8e8722c6194

  • SSDEEP

    3072:Mkh3VK2aRS5VHwO8KdKiZuNuEJ+DPmvKUJ2SFHR41mqmjRE5lh0juIST3:PVQO8uZUEDUKK2SbW2REPh0Yz

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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 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:772
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:332
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:1716
        • C:\Users\Admin\AppData\Local\Temp\73fd07c553921dbbb3c70048839882148792178db93a2ea6a56fee6fac5c2a1b.exe
          "C:\Users\Admin\AppData\Local\Temp\73fd07c553921dbbb3c70048839882148792178db93a2ea6a56fee6fac5c2a1b.exe"
          1⤵
          • 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 behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:2056
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3140
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
            1⤵
              PID:3032
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4660
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3660
                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                  1⤵
                    PID:3504
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3404
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3340
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3220
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                          1⤵
                            PID:688
                          • C:\Windows\Explorer.EXE
                            C:\Windows\Explorer.EXE
                            1⤵
                              PID:2180
                            • C:\Windows\system32\taskhostw.exe
                              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                              1⤵
                                PID:2572
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                1⤵
                                  PID:2408
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:2396
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:780
                                    • C:\Windows\System32\wuapihost.exe
                                      C:\Windows\System32\wuapihost.exe -Embedding
                                      1⤵
                                        PID:4976

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/2056-132-0x0000000001000000-0x000000000104F000-memory.dmp

                                        Filesize

                                        316KB

                                      • memory/2056-133-0x0000000002460000-0x00000000034EE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2056-134-0x0000000002460000-0x00000000034EE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2056-135-0x0000000002460000-0x00000000034EE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2056-136-0x0000000001000000-0x000000000104F000-memory.dmp

                                        Filesize

                                        316KB