Analysis

  • max time kernel
    122s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2024 11:39

General

  • Target

    7fbed750de373c17bcc9ade20a93477f.exe

  • Size

    100KB

  • MD5

    7fbed750de373c17bcc9ade20a93477f

  • SHA1

    ed79f69a0c599d7c13995decc601cbe0d0940c10

  • SHA256

    1c483c16954c800300b3a95c3d772af31a6dc5ce7c011b58dd6348e9d9638bde

  • SHA512

    dc8b4f3eebe8edca5d71e93ddfd8ef6a83375c43cde7a6334c474152df6461beaa9f007f30305722ea0e380b763711dc902ca5ae71fa7e86c4c378a359cce6fd

  • SSDEEP

    1536:5rzlFRLKVkUgMC2xfK7HylWkSs3Qd6kPv+NTyCXQygInH:5rRFRLKaHMpxfuoSsQd6KvJ

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 36 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 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 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:780
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:336
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
        1⤵
          PID:2700
        • C:\Users\Admin\AppData\Local\Temp\7fbed750de373c17bcc9ade20a93477f.exe
          "C:\Users\Admin\AppData\Local\Temp\7fbed750de373c17bcc9ade20a93477f.exe"
          1⤵
          • 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:808
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:372
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3776
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:4044
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3944
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3876
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3744
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3564
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:3416
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2856
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2636
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2608
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:784

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • F:\buglt.exe

                                  Filesize

                                  100KB

                                  MD5

                                  2d109eddb05e07ed2eb760d78035c8d6

                                  SHA1

                                  1d1da821f2d3f62abe9d20051c97d868c3f9e08f

                                  SHA256

                                  4302271666b9e9f53d394d18d931ff84b5fb5ef868a939f6fbbe567f7b1e6fc3

                                  SHA512

                                  212768c27a02566d4f6718de95161745e303bb163223a80f891b07295c7e0379015758e8aa400c3abb8b4c08816ad0785f4830693fff4547320fff05365b7c8b

                                • memory/808-24-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-11-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-6-0x0000000003D60000-0x0000000003D62000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/808-26-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-10-0x0000000003D60000-0x0000000003D62000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/808-29-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-7-0x00000000040F0000-0x00000000040F1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/808-27-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-12-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-13-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-14-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-15-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-16-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-17-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-18-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-19-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-20-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-22-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-23-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-0-0x0000000000400000-0x0000000000413000-memory.dmp

                                  Filesize

                                  76KB

                                • memory/808-5-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-4-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-8-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-31-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-34-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-36-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-38-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-45-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-47-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-49-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-51-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-53-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-55-0x0000000003D60000-0x0000000003D62000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/808-56-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-58-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-60-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-62-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-64-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-66-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-68-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/808-2-0x0000000002180000-0x000000000320E000-memory.dmp

                                  Filesize

                                  16.6MB