Analysis

  • max time kernel
    123s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2024, 07:33

General

  • Target

    辅助程序/过游戏保护/csrss.exe

  • Size

    1.2MB

  • MD5

    94dcf3d9a7cf1b9fa079d0e6f4f2ba5a

  • SHA1

    72f801de257841558356aae3710ec1e0c606fc8b

  • SHA256

    b23e7005b48679fa121cb99ccec15aa5e259c1b91c08a99490ccdb961e330b44

  • SHA512

    3bbd4086b97866b9f79d31b1f416bf188bb51bef88f87cb252fc91099ff51703c6eb65f1e40ff866157e306dc52274bba10bf703e1dde320a03705802b13a31c

  • SSDEEP

    12288:bcNMq4xG3b0RK5bzMjidw7JU6eUOMwFdVfZobi2a89ujY68aapv:bcD4s3wRQYj6gJU6pOMwFHmi9bOaov

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 39 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 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

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

  • Drops file in Program Files directory 12 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 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:780
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:788
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:60
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2864
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2988
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:3160
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3460
                  • C:\Users\Admin\AppData\Local\Temp\辅助程序\过游戏保护\csrss.exe
                    "C:\Users\Admin\AppData\Local\Temp\辅助程序\过游戏保护\csrss.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 SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4544
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3632
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3812
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3900
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3964
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4052
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4136
                            • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                              "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                              1⤵
                                PID:3444
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:1540
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:1568
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:1328
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:3596
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4584
                                        • C:\Windows\system32\DllHost.exe
                                          C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                          1⤵
                                            PID:2336
                                          • C:\Windows\system32\DllHost.exe
                                            C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                            1⤵
                                              PID:2924

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            • F:\vgog.exe

                                              Filesize

                                              100KB

                                              MD5

                                              216d14170fa582d5b355b4e6ca973920

                                              SHA1

                                              e268829f272621c3dfde08bc58d94fff43bf42f1

                                              SHA256

                                              dd58c214170cd22d734dc4422dbc2b2c951609d2dd832dcf451f0a192fe64663

                                              SHA512

                                              7db221bcce460209c654451b2b5c806371624e17e25000b0491de25a1a700344107954d778b3f300aae61ed50a6a2b94449d2b01793c086a891f8fce763f11fc

                                            • memory/4544-26-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-18-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-5-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-10-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-6-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-14-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-13-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-15-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-12-0x00000000025F0000-0x00000000025F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4544-11-0x00000000025F0000-0x00000000025F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4544-7-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-8-0x00000000025F0000-0x00000000025F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4544-1-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-31-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-17-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-29-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-19-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-20-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-22-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-23-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-24-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-0-0x0000000000400000-0x0000000000563000-memory.dmp

                                              Filesize

                                              1.4MB

                                            • memory/4544-9-0x0000000004440000-0x0000000004441000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/4544-27-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-16-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-33-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-36-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-39-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-41-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-42-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-49-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-50-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-52-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-54-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-56-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-58-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-60-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-62-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-63-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-66-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-67-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-68-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-69-0x00000000025F0000-0x00000000025F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4544-70-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/4544-3-0x0000000002770000-0x00000000037FE000-memory.dmp

                                              Filesize

                                              16.6MB