Analysis

  • max time kernel
    155s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 21:58

General

  • Target

    e5f0b07abd1c6f68ca001f614a2c30be9e1117ac71833a6de1048ceebef7af20.exe

  • Size

    313KB

  • MD5

    6177fff2f6a0de5f1c7e8c1ef64aee33

  • SHA1

    4ed9c8b941bc4d0b6827397cb0f739486bca52d6

  • SHA256

    e5f0b07abd1c6f68ca001f614a2c30be9e1117ac71833a6de1048ceebef7af20

  • SHA512

    f9099432084ee2a6d786f4242337267e7216466bf95571db2740d616cc6c3a440c13a33ebf8f42c971794e8bb5195b1bff27251a9e05527997c026f2c87509ac

  • SSDEEP

    6144:Kl8NTc5fVnYvmP3bU1BrTBioci1ljrW2S:nTc5fdYOP3YjPt1PS

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • 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 file in Program Files directory 11 IoCs
  • Drops file in Windows directory 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:384
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2404
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2600
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:1760
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
            1⤵
              PID:1144
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4672
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3704
                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                  1⤵
                    PID:3584
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3440
                    • 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\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3276
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                          1⤵
                            PID:1368
                          • C:\Windows\Explorer.EXE
                            C:\Windows\Explorer.EXE
                            1⤵
                              PID:2864
                              • C:\Users\Admin\AppData\Local\Temp\e5f0b07abd1c6f68ca001f614a2c30be9e1117ac71833a6de1048ceebef7af20.exe
                                "C:\Users\Admin\AppData\Local\Temp\e5f0b07abd1c6f68ca001f614a2c30be9e1117ac71833a6de1048ceebef7af20.exe"
                                2⤵
                                • Modifies firewall policy service
                                • UAC bypass
                                • Windows security bypass
                                • Disables RegEdit via registry modification
                                • Windows security modification
                                • Checks whether UAC is enabled
                                • Enumerates connected drives
                                • Drops file in Program Files directory
                                • Drops file in Windows directory
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of WriteProcessMemory
                                • System policy modification
                                PID:3776
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2444
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:804
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:800

                                  Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

                                        • memory/3776-132-0x0000000002330000-0x00000000033BE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/3776-133-0x0000000000400000-0x000000000044F000-memory.dmp

                                          Filesize

                                          316KB

                                        • memory/3776-134-0x0000000002330000-0x00000000033BE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/3776-135-0x0000000002330000-0x00000000033BE000-memory.dmp

                                          Filesize

                                          16.6MB