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Analysis

  • max time kernel
    140s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 04:20

General

  • Target

    7987a0d85aea3f83abbfec5377a2be34687fe69861dbc5caf249b4dada26b1b9.exe

  • Size

    115KB

  • MD5

    6e3a79bfe652cb528ac503ff0fe534b0

  • SHA1

    e414b33da7118565c17c7ae78b8a8a763de002b4

  • SHA256

    7987a0d85aea3f83abbfec5377a2be34687fe69861dbc5caf249b4dada26b1b9

  • SHA512

    48cf2bf8145e17492cf0347410295d7e6375069d90163085c222e7da33514af6de24f457af908d1129efed6ef5e77aaa5fd4c55b69beb521c2e65166781d9002

  • SSDEEP

    3072:cQIFSRTXJIceAm1INwyztfodL1Ju4WdoUNRScvitgQ:crMqm5lodLT3WDviF

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 1 IoCs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:788
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:332
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2456
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:3052
            • C:\Users\Admin\AppData\Local\Temp\7987a0d85aea3f83abbfec5377a2be34687fe69861dbc5caf249b4dada26b1b9.exe
              "C:\Users\Admin\AppData\Local\Temp\7987a0d85aea3f83abbfec5377a2be34687fe69861dbc5caf249b4dada26b1b9.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:3972
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:2360
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3284
              • 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\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3444
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3528
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                        PID:2332
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3720
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2324
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4704
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:2944
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:792

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • memory/3972-132-0x0000000000400000-0x0000000000443000-memory.dmp

                                  Filesize

                                  268KB

                                • memory/3972-133-0x00000000023C0000-0x000000000344E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/3972-134-0x00000000023C0000-0x000000000344E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/3972-135-0x0000000000400000-0x0000000000443000-memory.dmp

                                  Filesize

                                  268KB

                                • memory/3972-136-0x00000000023C0000-0x000000000344E000-memory.dmp

                                  Filesize

                                  16.6MB