Analysis

  • max time kernel
    162s
  • max time network
    171s
  • 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 14:36

General

  • Target

    018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe

  • Size

    1.3MB

  • MD5

    4753fe490e06759ed4af57c52959cde9

  • SHA1

    7fae7af36fc9fb30385cf462f397ebe738610eb0

  • SHA256

    018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8

  • SHA512

    70131ad6d76aa6d9a614731d8e9bf983d7819d97b40aafe6d8c5e93e608e2ba882cbd3b98574d7c73f7344b941682b225a36e29e61bb49f72304c431ca590f73

  • SSDEEP

    24576:KaHMv6Corjqny/Q5U0JW0fRqrSPy/2wP1aoUJ4:K1vqjd/Q5U0EiRI/2wdaA

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

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 3 IoCs
  • 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
  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops autorun.inf file 1 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:312
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:800
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:792
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3436
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3372
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3520
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4700
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3736
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3284
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:2688
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:3032
                          • C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe
                            "C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe"
                            2⤵
                            • Suspicious use of SetThreadContext
                            • Suspicious use of FindShellTrayWindow
                            • Suspicious use of SendNotifyMessage
                            • Suspicious use of WriteProcessMemory
                            PID:5060
                            • C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe
                              "C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe"
                              3⤵
                              • Modifies firewall policy service
                              • UAC bypass
                              • Windows security bypass
                              • Windows security modification
                              • Checks whether UAC is enabled
                              • Enumerates connected drives
                              • Drops autorun.inf file
                              • Suspicious use of SetThreadContext
                              • 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:2076
                              • C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe
                                /scomma "C:\Users\Admin\AppData\Local\Temp\tmp.ini"
                                4⤵
                                • Executes dropped EXE
                                PID:2360
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2480
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2392
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2348

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8.exe

                                Filesize

                                1.3MB

                                MD5

                                4753fe490e06759ed4af57c52959cde9

                                SHA1

                                7fae7af36fc9fb30385cf462f397ebe738610eb0

                                SHA256

                                018111e36651a7a4590818f65190a2f74278c9ac5a964506009c115bebc76ef8

                                SHA512

                                70131ad6d76aa6d9a614731d8e9bf983d7819d97b40aafe6d8c5e93e608e2ba882cbd3b98574d7c73f7344b941682b225a36e29e61bb49f72304c431ca590f73

                              • memory/2076-137-0x0000000002E50000-0x0000000003EDE000-memory.dmp

                                Filesize

                                16.6MB

                              • memory/2076-136-0x0000000000400000-0x0000000000445000-memory.dmp

                                Filesize

                                276KB

                              • memory/2076-133-0x0000000000400000-0x0000000000445000-memory.dmp

                                Filesize

                                276KB

                              • memory/2076-148-0x0000000000400000-0x0000000000445000-memory.dmp

                                Filesize

                                276KB

                              • memory/2076-149-0x0000000002E50000-0x0000000003EDE000-memory.dmp

                                Filesize

                                16.6MB

                              • memory/2360-141-0x0000000000400000-0x0000000000453000-memory.dmp

                                Filesize

                                332KB

                              • memory/2360-144-0x0000000000400000-0x0000000000453000-memory.dmp

                                Filesize

                                332KB

                              • memory/2360-145-0x0000000000400000-0x0000000000453000-memory.dmp

                                Filesize

                                332KB

                              • memory/2360-146-0x0000000000400000-0x0000000000453000-memory.dmp

                                Filesize

                                332KB

                              • memory/2360-147-0x0000000000400000-0x0000000000453000-memory.dmp

                                Filesize

                                332KB