Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 08:41

General

  • Target

    84c56aa2d82fec4bc8d026dd5e13f27789a832be05b68e1448db85a7962d3c80.exe

  • Size

    136KB

  • MD5

    11bc7e2912f550f065237145f332f3d0

  • SHA1

    1faab702e92eab9b8e01790d4825cd954098529c

  • SHA256

    84c56aa2d82fec4bc8d026dd5e13f27789a832be05b68e1448db85a7962d3c80

  • SHA512

    e1e8853b056b701ec628627bff053625e7e3acdba61385e0a08bbaa10c6b0a66f8caf6d764a2b1c5f9d82160b54eb5455cac180c9ac655dd20a2d1ffdf579230

  • SSDEEP

    1536:bm3tJSJ2ZKGpXVyPI3ooPl5yd36IwwQUDAmLQoVESSA3FTSFxv92pEGjsjsi+F:bm37hHSKfPl5yhWoNx3Gxl2JLi+F

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 4 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 7 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:3456
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:2056
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:4820
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3744
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
              PID:3552
            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
              1⤵
                PID:3352
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                1⤵
                  PID:3244
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:2948
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:2424
                      • C:\Users\Admin\AppData\Local\Temp\84c56aa2d82fec4bc8d026dd5e13f27789a832be05b68e1448db85a7962d3c80.exe
                        "C:\Users\Admin\AppData\Local\Temp\84c56aa2d82fec4bc8d026dd5e13f27789a832be05b68e1448db85a7962d3c80.exe"
                        2⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:4612
                    • C:\Windows\system32\taskhostw.exe
                      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                      1⤵
                        PID:2416
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                        1⤵
                          PID:2328
                        • C:\Windows\system32\sihost.exe
                          sihost.exe
                          1⤵
                            PID:2308
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:1008
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:776
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:768

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • memory/4612-132-0x0000000001000000-0x0000000001023000-memory.dmp

                                  Filesize

                                  140KB

                                • memory/4612-133-0x0000000002440000-0x00000000034CE000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/4612-134-0x0000000002440000-0x00000000034CE000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/4612-135-0x0000000002440000-0x00000000034CE000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/4612-136-0x0000000001000000-0x0000000001023000-memory.dmp

                                  Filesize

                                  140KB

                                • memory/4612-137-0x0000000002440000-0x00000000034CE000-memory.dmp

                                  Filesize

                                  16.6MB