Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 16:37

General

  • Target

    f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.exe

  • Size

    100KB

  • MD5

    4bb6708df44a0bb41056ca6f687f8147

  • SHA1

    ba4929560fb3a4604edea25f3bb18a12ac1ca433

  • SHA256

    f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88

  • SHA512

    566e884eb775b4f841877050e2d83865c4bf4a82a4a252d8a4721fe74c6e2d958be608674f38e97bf93afd78389bf32fabacad8c665bf123a4b94b82161af49e

  • SSDEEP

    1536:wBP2mP+KKEZijYFR/NUT0PqI6gN0k15lVXBsst98FbCZ25fJ:02lKLijYFRjPXVN0k15l1BsK8FK2X

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\dwm.exe
    "dwm.exe"
    1⤵
      PID:60
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2348
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2472
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2360
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:3232
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3472
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:520
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                  1⤵
                    PID:4544
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4684
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3716
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3396
                        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                          1⤵
                            PID:3328
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:776
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3044
                                • C:\Users\Admin\AppData\Local\Temp\f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.exe
                                  "C:\Users\Admin\AppData\Local\Temp\f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.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:1792
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:780
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:784

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/1792-132-0x0000000000400000-0x0000000000415000-memory.dmp

                                    Filesize

                                    84KB

                                  • memory/1792-133-0x00000000022B0000-0x000000000333E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1792-134-0x00000000022B0000-0x000000000333E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1792-135-0x00000000022B0000-0x000000000333E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1792-136-0x0000000000400000-0x0000000000415000-memory.dmp

                                    Filesize

                                    84KB