Analysis

  • max time kernel
    187s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 13:04

General

  • Target

    7e0bff6e08f575bc28e5e12581911ae5fffd8075e9347207a1f812a70483bb24.exe

  • Size

    100KB

  • MD5

    6253c0a362fc0ce218507b40add03b52

  • SHA1

    116363ffbc760868f7e83ad8355811c4fcf42ff0

  • SHA256

    7e0bff6e08f575bc28e5e12581911ae5fffd8075e9347207a1f812a70483bb24

  • SHA512

    416b3a737027b9811a87b64f49697bcdf846e8ee853af308787c9ab0c4f6a9d619bed46316198efdd50b387db245b7143a4214dddb195a9dc3bd2651452b7406

  • SSDEEP

    3072:fwgRpA3VW/phrfE/6kUWfuwKU2bxBtjen6:fwgRpAFI7E/6dwKUwK6

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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 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:64
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:796
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:788
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2484
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2472
            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
              1⤵
                PID:3368
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                1⤵
                  PID:2120
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:4564
                  • C:\Windows\system32\backgroundTaskHost.exe
                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                    1⤵
                      PID:3768
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3720
                      • 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\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:3432
                          • C:\Windows\system32\DllHost.exe
                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                            1⤵
                              PID:3260
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                              1⤵
                                PID:708
                              • C:\Windows\Explorer.EXE
                                C:\Windows\Explorer.EXE
                                1⤵
                                  PID:772
                                  • C:\Users\Admin\AppData\Local\Temp\7e0bff6e08f575bc28e5e12581911ae5fffd8075e9347207a1f812a70483bb24.exe
                                    "C:\Users\Admin\AppData\Local\Temp\7e0bff6e08f575bc28e5e12581911ae5fffd8075e9347207a1f812a70483bb24.exe"
                                    2⤵
                                    • 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
                                    • Modifies registry class
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of WriteProcessMemory
                                    • System policy modification
                                    PID:1252
                                • C:\Windows\system32\taskhostw.exe
                                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                  1⤵
                                    PID:2788
                                  • C:\Windows\system32\BackgroundTransferHost.exe
                                    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                                    1⤵
                                      PID:4004
                                    • C:\Windows\system32\backgroundTaskHost.exe
                                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                      1⤵
                                        PID:840

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/1252-132-0x0000000000400000-0x0000000000413000-memory.dmp

                                        Filesize

                                        76KB

                                      • memory/1252-133-0x00000000022F0000-0x000000000337E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1252-134-0x00000000022F0000-0x000000000337E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1252-135-0x00000000022F0000-0x000000000337E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/1252-136-0x0000000000400000-0x0000000000413000-memory.dmp

                                        Filesize

                                        76KB