Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 23:32

General

  • Target

    88d8f429bcb740ab3eb60d8690cd70aea893f47a358273c473c69a1513e00aee.exe

  • Size

    526KB

  • MD5

    6122eda792a6ca7affee7bb59503ad53

  • SHA1

    92695b415a15c4a35cc76bc8c32ad3eb161c94e8

  • SHA256

    88d8f429bcb740ab3eb60d8690cd70aea893f47a358273c473c69a1513e00aee

  • SHA512

    06e5b91474168df7be7789b8a7dda63440820f3601c5703e8f09d502978f8ba1f7da204b48aa5c3ce508b9d298d5070ba3e56fa546ac5d3fa28aa1fc0982a8c9

  • SSDEEP

    12288:3BzKc/5721VghlVP1TlQEW5XvzjgqeHsUO:3VKc/5721ValVdYXvzjOHQ

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/

http://klkjwre77638dfqwieuoi888.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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 5 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:760
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:4688
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:2672
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:2180
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3732
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3532
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3444
                • 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:3288
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3088
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:600
                          • C:\Users\Admin\AppData\Local\Temp\88d8f429bcb740ab3eb60d8690cd70aea893f47a358273c473c69a1513e00aee.exe
                            "C:\Users\Admin\AppData\Local\Temp\88d8f429bcb740ab3eb60d8690cd70aea893f47a358273c473c69a1513e00aee.exe"
                            2⤵
                            • Modifies firewall policy service
                            • UAC bypass
                            • Windows security bypass
                            • Disables RegEdit via registry modification
                            • Windows security modification
                            • Checks whether UAC is enabled
                            • Drops file in Program Files directory
                            • Drops file in Windows directory
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of SetWindowsHookEx
                            • Suspicious use of WriteProcessMemory
                            • System policy modification
                            PID:2008
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2872
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2820
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2780
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:1008
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:768

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/2008-132-0x0000000000400000-0x0000000000522000-memory.dmp

                                    Filesize

                                    1.1MB

                                  • memory/2008-133-0x0000000002450000-0x00000000034DE000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/2008-134-0x0000000002450000-0x00000000034DE000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/2008-135-0x0000000000400000-0x0000000000522000-memory.dmp

                                    Filesize

                                    1.1MB

                                  • memory/2008-136-0x0000000002450000-0x00000000034DE000-memory.dmp

                                    Filesize

                                    16.6MB