Analysis

  • max time kernel
    158s
  • max time network
    158s
  • 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, 11:53

General

  • Target

    0bcdcb2e938d640c6d5ab37fb232d7a1b9a516bc707dcd96e2d5e10fe2e2d900.exe

  • Size

    100KB

  • MD5

    44e953e1080b0c330401bf82824833f8

  • SHA1

    9fb8c4e58f7f01e1c6edc198076415314a2a8b51

  • SHA256

    0bcdcb2e938d640c6d5ab37fb232d7a1b9a516bc707dcd96e2d5e10fe2e2d900

  • SHA512

    c9150fa5ab08858f8c4c1226e1b12f7811cf2bd27120711977aa31f614070ac546d6da737612e9fec871061a1cd0bdd9f03f51c5e13efd15300c383eea388ecf

  • SSDEEP

    3072:rZ6vSf1RJyegnoGyBeep5yjdhk04Ip5yl:rGmyeH5yxH4I3w

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 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:788
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:332
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3444
        • 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:4704
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3720
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3528
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3372
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3284
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:2360
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:3052
                          • C:\Users\Admin\AppData\Local\Temp\0bcdcb2e938d640c6d5ab37fb232d7a1b9a516bc707dcd96e2d5e10fe2e2d900.exe
                            "C:\Users\Admin\AppData\Local\Temp\0bcdcb2e938d640c6d5ab37fb232d7a1b9a516bc707dcd96e2d5e10fe2e2d900.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:3296
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2456
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2332
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2324
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:792

                                Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/3296-132-0x0000000000400000-0x0000000000413000-memory.dmp

                                        Filesize

                                        76KB

                                      • memory/3296-133-0x0000000002300000-0x000000000338E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3296-134-0x0000000002300000-0x000000000338E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3296-135-0x0000000002300000-0x000000000338E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3296-136-0x0000000000400000-0x0000000000413000-memory.dmp

                                        Filesize

                                        76KB