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Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 17:20

General

  • Target

    02951a1098930c5f83d5ce4a157378763319467b86f26de57e5e8441cca649ed.exe

  • Size

    249KB

  • MD5

    63b0b0b9a6835bb670405a531366eea0

  • SHA1

    a15b87a34c1126d8876ed0b2897153a569eef3c8

  • SHA256

    02951a1098930c5f83d5ce4a157378763319467b86f26de57e5e8441cca649ed

  • SHA512

    9a11c0a8c755ae5a492acc83dab5a3f088e0d86aff106b3915189daf67bab10bf18929d872eefcb6cfd949271d62ad408951cb509dc9aa5c3b62d222098cec69

  • SSDEEP

    3072:WsRnhr1zzLvga5yJdu34gOmqqnsZdysdJzTFwf9xgCo4nuotdJavrr:95H7N5t4g7ntsdH41n3gvrr

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
  • 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\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:768
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1020
      • C:\Users\Admin\AppData\Local\Temp\02951a1098930c5f83d5ce4a157378763319467b86f26de57e5e8441cca649ed.exe
        "C:\Users\Admin\AppData\Local\Temp\02951a1098930c5f83d5ce4a157378763319467b86f26de57e5e8441cca649ed.exe"
        1⤵
        • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1588
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:4332
        • C:\Windows\system32\backgroundTaskHost.exe
          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
          1⤵
            PID:4508
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:824
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3764
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3560
                • 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:3304
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:3096
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:1124
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2912
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2844
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2808
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:776

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

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                                  Downloads

                                  • memory/1588-132-0x0000000002310000-0x000000000339E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1588-133-0x0000000000400000-0x0000000000440000-memory.dmp

                                    Filesize

                                    256KB

                                  • memory/1588-134-0x0000000002310000-0x000000000339E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1588-135-0x0000000002310000-0x000000000339E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/1588-136-0x0000000000400000-0x0000000000440000-memory.dmp

                                    Filesize

                                    256KB