Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 19:28

General

  • Target

    1098bc87f7cf5be1dcddac7c963e1b64df9346b21124ab820f0107259d4bf352.exe

  • Size

    530KB

  • MD5

    6c49947fdee5ffbead3e1d4db48bf880

  • SHA1

    739ec8a1ea2981ad0c116907299ef4c3bf72a3ad

  • SHA256

    1098bc87f7cf5be1dcddac7c963e1b64df9346b21124ab820f0107259d4bf352

  • SHA512

    b43b178f27531687300b4aedce65f49dfe85f32ef07d7af15cec03067518f769c19c6af692b6171441bc9eec9b56278a3cc2084de8be7dd3686f473290cee461

  • SSDEEP

    12288:ljwqr+D5V4EwO6Fz0sK+oPmG9jnbGYqvAYokDvdUC1Tgwyhsym17u+ExJpcEi0/k:dwqr+D5V4poPmG5bixu+6/2

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
  • Adds Run key to start application 2 TTPs 1 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:804
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:328
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:812
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3524
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3460
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3356
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                1⤵
                  PID:3156
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:780
                    • C:\Users\Admin\AppData\Local\Temp\1098bc87f7cf5be1dcddac7c963e1b64df9346b21124ab820f0107259d4bf352.exe
                      "C:\Users\Admin\AppData\Local\Temp\1098bc87f7cf5be1dcddac7c963e1b64df9346b21124ab820f0107259d4bf352.exe"
                      2⤵
                      • Modifies firewall policy service
                      • UAC bypass
                      • Windows security bypass
                      • Windows security modification
                      • Adds Run key to start application
                      • 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:2692
                  • C:\Windows\system32\taskhostw.exe
                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                    1⤵
                      PID:2880
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                      1⤵
                        PID:2516
                      • C:\Windows\system32\sihost.exe
                        sihost.exe
                        1⤵
                          PID:2448
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                          1⤵
                            PID:424
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                            1⤵
                              PID:3212
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:4688
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3820
                                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  1⤵
                                    PID:3612
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:4952

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/2692-132-0x0000000000400000-0x000000000045B000-memory.dmp

                                      Filesize

                                      364KB

                                    • memory/2692-133-0x00000000026E0000-0x000000000376E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/2692-134-0x00000000026E0000-0x000000000376E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/2692-135-0x00000000026E0000-0x000000000376E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/2692-136-0x0000000000400000-0x000000000045B000-memory.dmp

                                      Filesize

                                      364KB