Analysis

  • max time kernel
    151s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2022 22:02

General

  • Target

    1bca04faeceae0aa5b352e9e3567f75dfcc19ee7df3ead36df5164be55423c48.exe

  • Size

    187KB

  • MD5

    827619340ab1d5d31af85930796207f1

  • SHA1

    798caa504ab53b2bf189e8e36119de8a3351ca26

  • SHA256

    1bca04faeceae0aa5b352e9e3567f75dfcc19ee7df3ead36df5164be55423c48

  • SHA512

    3feb974e33c77a39893002daffc421d63c36b7674641e8df36e19687d8223ea14855e453fb687ed83b0410c9cdc0e473530077e396fa777b748cbd1a2e3269ba

  • SSDEEP

    3072:tkMwuGcvhkLdN3FZJ16ckEdzUd4LlOXu/OLSNQXEfoDx5Oyuq1J4kR50oIHrogPa:0uGR7tjkEo40qOLmOEfoDbOtq1W25KL2

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 30 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:776
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:328
      • C:\Windows\system32\DllHost.exe
        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
        1⤵
          PID:3256
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
            PID:3516
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3808
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4720
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:2380
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                  1⤵
                    PID:3444
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3420
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3356
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:2752
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2756
                            • C:\Users\Admin\AppData\Local\Temp\1bca04faeceae0aa5b352e9e3567f75dfcc19ee7df3ead36df5164be55423c48.exe
                              "C:\Users\Admin\AppData\Local\Temp\1bca04faeceae0aa5b352e9e3567f75dfcc19ee7df3ead36df5164be55423c48.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:1952
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2464
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2368
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2332
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:784

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

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                                  Downloads

                                  • memory/1952-132-0x0000000000400000-0x0000000000436000-memory.dmp

                                    Filesize

                                    216KB

                                  • memory/1952-133-0x0000000002930000-0x00000000039BE000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1952-134-0x0000000002930000-0x00000000039BE000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1952-135-0x0000000002930000-0x00000000039BE000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1952-136-0x0000000000400000-0x0000000000436000-memory.dmp

                                    Filesize

                                    216KB