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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • 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, 16:45

General

  • Target

    ba138dcfb2ccb33c1682f9568da2d27e1614baca9bcc238788d906bbc0a83dc6.exe

  • Size

    112KB

  • MD5

    8873ad86a13388f5c4b2198e746bf4a5

  • SHA1

    27357991ce57680b2a81230fef18a7e1aec2aca5

  • SHA256

    ba138dcfb2ccb33c1682f9568da2d27e1614baca9bcc238788d906bbc0a83dc6

  • SHA512

    0392fb8e10ef929411960978932cf2c38b81b0a4df111d3f80751f3e2f3f2b521122a579e4d8767f85b9894c91bdbb867a3884abfec61f1fbf4d3c827f5c7e57

  • SSDEEP

    1536:/6GkJO8PwUkRGXrKAwn0TKWubtwiFhFKo5RyRoCLMIyT5kRvcF5VZA:S3dkRGXrKAA02PZtQQAvk5PA

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

Signatures

  • 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
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • UPX packed file 3 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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:804
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:800
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:60
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2284
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2300
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2580
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4800
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3780
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3548
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3464
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3400
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3308
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3092
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:760
                                • C:\Users\Admin\AppData\Local\Temp\ba138dcfb2ccb33c1682f9568da2d27e1614baca9bcc238788d906bbc0a83dc6.exe
                                  "C:\Users\Admin\AppData\Local\Temp\ba138dcfb2ccb33c1682f9568da2d27e1614baca9bcc238788d906bbc0a83dc6.exe"
                                  2⤵
                                  • UAC bypass
                                  • Windows security bypass
                                  • Disables RegEdit via registry modification
                                  • Windows security modification
                                  • Adds Run key to start application
                                  • Checks whether UAC is enabled
                                  • 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:4352
                                  • C:\Windows\SysWOW64\netsh.exe
                                    netsh firewall set opmode disable
                                    3⤵
                                    • Modifies Windows Firewall
                                    PID:1308

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

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                              Downloads

                              • memory/4352-132-0x0000000000400000-0x000000000041C000-memory.dmp

                                Filesize

                                112KB

                              • memory/4352-133-0x0000000002B10000-0x0000000003B43000-memory.dmp

                                Filesize

                                16.2MB

                              • memory/4352-137-0x0000000002B10000-0x0000000003B43000-memory.dmp

                                Filesize

                                16.2MB

                              • memory/4352-138-0x0000000002B10000-0x0000000003B43000-memory.dmp

                                Filesize

                                16.2MB

                              • memory/4352-139-0x0000000000400000-0x000000000041C000-memory.dmp

                                Filesize

                                112KB