Analysis

  • max time kernel
    154s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 08:37

General

  • Target

    9a49c9b6af34a5ead16edd24fa09f5307fa459d03152f4783761f1563d1b0b0b.exe

  • Size

    100KB

  • MD5

    337cc4a34cafd9e01d8f78cb258191dc

  • SHA1

    4a95164663933e6d26eab486212c7fa718e88741

  • SHA256

    9a49c9b6af34a5ead16edd24fa09f5307fa459d03152f4783761f1563d1b0b0b

  • SHA512

    7a1d1bfb4158edd818a9ca9b8b1c9b18c85b8156ee2284a21adf4dcb641cb41723f14491dac6b2b4ccf6e2d2be791c17d4ec2432900aad68faace10fb66f1d05

  • SSDEEP

    1536:kUZBy4CdeeYglG7L4o+7V0IHZSetH0o/W1DhCt16RiI8JLDIoFxjLI5:ke/Cd4OCUiegetpWuz6Ri5JwKI5

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 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
  • 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\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:3360
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:4920
        • C:\Windows\system32\backgroundTaskHost.exe
          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
          1⤵
            PID:1196
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
            1⤵
              PID:1380
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
              1⤵
                PID:1156
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4704
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3792
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3512
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      1⤵
                        PID:3264
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:420
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2700
                            • C:\Users\Admin\AppData\Local\Temp\9a49c9b6af34a5ead16edd24fa09f5307fa459d03152f4783761f1563d1b0b0b.exe
                              "C:\Users\Admin\AppData\Local\Temp\9a49c9b6af34a5ead16edd24fa09f5307fa459d03152f4783761f1563d1b0b0b.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:1980
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2876
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2780
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2720
                                • C:\Windows\system32\dwm.exe
                                  "dwm.exe"
                                  1⤵
                                    PID:1008
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:784
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:776
                                      • C:\Windows\system32\BackgroundTransferHost.exe
                                        "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                                        1⤵
                                          PID:2484

                                        Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

                                        • memory/1980-132-0x0000000000400000-0x0000000000415000-memory.dmp

                                          Filesize

                                          84KB

                                        • memory/1980-133-0x0000000002250000-0x00000000032DE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1980-134-0x0000000002250000-0x00000000032DE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1980-135-0x0000000002250000-0x00000000032DE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1980-136-0x0000000000400000-0x0000000000415000-memory.dmp

                                          Filesize

                                          84KB