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Analysis

  • max time kernel
    324s
  • max time network
    338s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 12:47

General

  • Target

    ced3da74164136f7c0954c650a0c99e7eb34f361afa491464c4b0fadc3f87ae9.exe

  • Size

    100KB

  • MD5

    690b0c9dea7093ef855807d69cb8ea84

  • SHA1

    c7f104740e62a16cec6739144929fca596e29f7e

  • SHA256

    ced3da74164136f7c0954c650a0c99e7eb34f361afa491464c4b0fadc3f87ae9

  • SHA512

    af8454c095b73d193ac2219d404b2945f2bd66c715556c5cb74152f69172832b4c728e926f53e6089ee0dccef6694e6c5bc2142380b5808bb321441dc9e66631

  • SSDEEP

    3072:PYLUlID+7VvUbc9sPPzm/H0/7non+s7BX:PYolIDEVsbc9CsH0/7mr

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • 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 2 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:60
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:2148
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:4652
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3688
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
              PID:3496
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3404
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3340
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3240
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                    1⤵
                      PID:2816
                    • C:\Windows\Explorer.EXE
                      C:\Windows\Explorer.EXE
                      1⤵
                        PID:2420
                        • C:\Users\Admin\AppData\Local\Temp\ced3da74164136f7c0954c650a0c99e7eb34f361afa491464c4b0fadc3f87ae9.exe
                          "C:\Users\Admin\AppData\Local\Temp\ced3da74164136f7c0954c650a0c99e7eb34f361afa491464c4b0fadc3f87ae9.exe"
                          2⤵
                          • Modifies firewall policy service
                          • UAC bypass
                          • Windows security bypass
                          • Disables RegEdit via registry modification
                          • 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:1064
                      • C:\Windows\system32\taskhostw.exe
                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                        1⤵
                          PID:2832
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2772
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2748
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:788
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:780
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:4264
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:4204

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/1064-132-0x0000000000400000-0x0000000000416000-memory.dmp

                                      Filesize

                                      88KB

                                    • memory/1064-133-0x00000000022B0000-0x000000000333E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/1064-134-0x00000000022B0000-0x000000000333E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/1064-135-0x00000000022B0000-0x000000000333E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/1064-136-0x0000000000400000-0x0000000000416000-memory.dmp

                                      Filesize

                                      88KB