Analysis

  • max time kernel
    169s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 11:19

General

  • Target

    6e33bcbb29bb11b3e8cefc5abffbf00876b753d680eb025f3f9b669092206d56.exe

  • Size

    100KB

  • MD5

    6f4a0e59e31fcfa6a98a0dc2f09db882

  • SHA1

    9c34f3b0cf41eed658732e8e69fa5a2a6121874f

  • SHA256

    6e33bcbb29bb11b3e8cefc5abffbf00876b753d680eb025f3f9b669092206d56

  • SHA512

    ee344788461319b0612c56d95bbcfba790a12d82ef47822f56f33fa6917b9872cc878dd3e8f10bbd47bf4e71c118d66798a1f442b8a617508fca717a3d1e36ef

  • SSDEEP

    1536:PfqJWNFY4DgWmb2WgvaTCSY4d+a4yY3O1Otqn8GBCcdY747ipxKxV3P3oDKXE:Pfq8FzkeapY4d+qso8XcdYM7WeV33

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:1016
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2360
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3560
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3492
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:3392
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:3180
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4732
                • C:\Users\Admin\AppData\Local\Temp\6e33bcbb29bb11b3e8cefc5abffbf00876b753d680eb025f3f9b669092206d56.exe
                  "C:\Users\Admin\AppData\Local\Temp\6e33bcbb29bb11b3e8cefc5abffbf00876b753d680eb025f3f9b669092206d56.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
                  • Modifies registry class
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  • System policy modification
                  PID:4240
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                  1⤵
                    PID:4588
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4664
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3816
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:3640
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2976
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2488
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2380
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:788
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:780

                                  Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • memory/4240-132-0x00000000022B0000-0x000000000333E000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/4240-133-0x0000000000400000-0x0000000000414000-memory.dmp

                                          Filesize

                                          80KB

                                        • memory/4240-134-0x00000000022B0000-0x000000000333E000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/4240-135-0x00000000022B0000-0x000000000333E000-memory.dmp

                                          Filesize

                                          16.6MB