Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 23:39

General

  • Target

    017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e.exe

  • Size

    657KB

  • MD5

    6a1304af0bdb3a90423021ea9b607f31

  • SHA1

    b3a8fea4b7a35a5e2461f261e05148481aa19443

  • SHA256

    017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e

  • SHA512

    79e4e10172cf4f86ddfc340ff77dfdc7a51683b2d42dbbeee94ae2488d5b27f1149c3c846fb8bd71800eacd9c3f00280c269eba6c3e63e21948290d76a567576

  • SSDEEP

    12288:iARDO0MVcRoSK6wTx9/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeen:pDO0MWiTx9/eeeeeeeeeeeeeeeeeeee3

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 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 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 13 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 17 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:772
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1020
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
          PID:2340
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3396
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
            1⤵
              PID:1524
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:2588
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                1⤵
                  PID:740
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:4692
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3616
                    • 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\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3332
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3244
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:760
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:2940
                                • C:\Users\Admin\AppData\Local\Temp\017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e.exe
                                  "C:\Users\Admin\AppData\Local\Temp\017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e.exe"
                                  2⤵
                                  • Modifies firewall policy service
                                  • UAC bypass
                                  • Windows security bypass
                                  • Windows security modification
                                  • Checks whether UAC is enabled
                                  • Enumerates connected drives
                                  • Drops file in Program Files directory
                                  • Drops file in Windows directory
                                  • Modifies registry class
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of SetWindowsHookEx
                                  • Suspicious use of WriteProcessMemory
                                  • System policy modification
                                  PID:1300
                                  • C:\Program Files (x86)\BitTorrent\BitTorrent.exe
                                    BitTorrent.exe /NOINSTALL /BRINGTOFRONT
                                    3⤵
                                    • Modifies firewall policy service
                                    • UAC bypass
                                    • Windows security bypass
                                    • Executes dropped EXE
                                    • Identifies Wine through registry keys
                                    • 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
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious behavior: GetForegroundWindowSpam
                                    • Suspicious use of FindShellTrayWindow
                                    • Suspicious use of SendNotifyMessage
                                    • Suspicious use of SetWindowsHookEx
                                    • Suspicious use of WriteProcessMemory
                                    • System policy modification
                                    PID:3996
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\017AE8~1.EXE > nul
                                    3⤵
                                      PID:3760
                                • C:\Windows\system32\taskhostw.exe
                                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                  1⤵
                                    PID:2496
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                    1⤵
                                      PID:2356
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:780

                                      Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

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                                            Downloads

                                            • C:\Program Files (x86)\BitTorrent\BitTorrent.exe

                                              Filesize

                                              657KB

                                              MD5

                                              6a1304af0bdb3a90423021ea9b607f31

                                              SHA1

                                              b3a8fea4b7a35a5e2461f261e05148481aa19443

                                              SHA256

                                              017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e

                                              SHA512

                                              79e4e10172cf4f86ddfc340ff77dfdc7a51683b2d42dbbeee94ae2488d5b27f1149c3c846fb8bd71800eacd9c3f00280c269eba6c3e63e21948290d76a567576

                                            • C:\Program Files (x86)\BitTorrent\BitTorrent.exe

                                              Filesize

                                              657KB

                                              MD5

                                              6a1304af0bdb3a90423021ea9b607f31

                                              SHA1

                                              b3a8fea4b7a35a5e2461f261e05148481aa19443

                                              SHA256

                                              017ae8666f5f4cfd7ee853a2e506f9607a11c4e99481f1c2f8b8ee974ef5a13e

                                              SHA512

                                              79e4e10172cf4f86ddfc340ff77dfdc7a51683b2d42dbbeee94ae2488d5b27f1149c3c846fb8bd71800eacd9c3f00280c269eba6c3e63e21948290d76a567576

                                            • C:\Windows\SYSTEM.INI

                                              Filesize

                                              257B

                                              MD5

                                              0cf8578e7b74337a28f02f6e85754e98

                                              SHA1

                                              6d5f276fad2f084441b035110d8672a58588dcaa

                                              SHA256

                                              3cfded45b4d5c105b79934b3697e8f87d6c6536d48078c97dcb2da752259ab3a

                                              SHA512

                                              d4253f5876de83bc3f3b77942d70ec9c469c26330220808557527a4c399786a3ee48d2fb578d3d65aeb8fb2d3de6acf950142e8ae3a32d3e4683e13825e9188d

                                            • memory/1300-140-0x00000000023D0000-0x000000000345E000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/1300-132-0x00000000023D0000-0x000000000345E000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/1300-133-0x0000000000400000-0x0000000000552000-memory.dmp

                                              Filesize

                                              1.3MB

                                            • memory/1300-138-0x0000000000400000-0x0000000000552000-memory.dmp

                                              Filesize

                                              1.3MB

                                            • memory/3996-139-0x0000000000400000-0x0000000000552000-memory.dmp

                                              Filesize

                                              1.3MB

                                            • memory/3996-141-0x0000000005350000-0x00000000063DE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/3996-143-0x0000000000400000-0x0000000000552000-memory.dmp

                                              Filesize

                                              1.3MB

                                            • memory/3996-144-0x0000000005350000-0x00000000063DE000-memory.dmp

                                              Filesize

                                              16.6MB

                                            • memory/3996-145-0x0000000005350000-0x00000000063DE000-memory.dmp

                                              Filesize

                                              16.6MB