Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 07:12

General

  • Target

    7fb69814577a05f339ba827206f789799c2570f490c4252e7aad3703788039f3.exe

  • Size

    100KB

  • MD5

    7ee5da1aeaa6eaaf5d71e3430106c433

  • SHA1

    b246045d10332fec46573c83a848e6d3622129fd

  • SHA256

    7fb69814577a05f339ba827206f789799c2570f490c4252e7aad3703788039f3

  • SHA512

    6c3835e682e62372b6abc66274fa9aa96f72ede5494761a1007753046374fb4817f86966fe482ae0fa17d801e17407fbd80d6720290644e387584befc2d8fbe0

  • SSDEEP

    1536:+pJTyvVmciQ9lAkJCHN4PJ91muE7jk2vlFJ9gCjsn3tr6fdUEAN0nn2h4B6nCd0S:PvwzQ9KkQHKRE3vR9Xqr6lbg0nn2h4k4

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 21 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:756
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:3272
      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
        1⤵
          PID:3516
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:4648
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3696
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3424
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3364
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:2780
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:2484
                      • C:\Users\Admin\AppData\Local\Temp\7fb69814577a05f339ba827206f789799c2570f490c4252e7aad3703788039f3.exe
                        "C:\Users\Admin\AppData\Local\Temp\7fb69814577a05f339ba827206f789799c2570f490c4252e7aad3703788039f3.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:4692
                    • C:\Windows\system32\taskhostw.exe
                      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                      1⤵
                        PID:2756
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                        1⤵
                          PID:2456
                        • C:\Windows\system32\sihost.exe
                          sihost.exe
                          1⤵
                            PID:2384
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:1000
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:764

                              Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/4692-132-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/4692-133-0x0000000000400000-0x0000000000414000-memory.dmp

                                      Filesize

                                      80KB

                                    • memory/4692-134-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/4692-135-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB