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Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 04:03

General

  • Target

    b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe

  • Size

    260KB

  • MD5

    6e262f942aa819fe4555bc41df893c60

  • SHA1

    ebcbdece979ecdb400e2dfe2a101ed15a8a1de25

  • SHA256

    b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6

  • SHA512

    736a5547b4c953d052575f959830f447a9a8f55d817cefa1704b1ec1e2a4f934ece18041d6ca10f28c4f245b384840e4388da4bb7520be64d6f3773000d85cbd

  • SSDEEP

    6144:wj16JTe7QDT1lC7H0q6k+RCoXe8xrubntZ8u:m8JC8DT1lsHZv4BekEtZh

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
  • Executes dropped EXE 2 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 33 IoCs

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

  • Suspicious use of SetThreadContext 2 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 9 IoCs
  • Suspicious behavior: RenamesItself 1 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:788
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:328
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:3048
          • C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe
            "C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe"
            2⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Windows security modification
            • Checks whether UAC is enabled
            • Enumerates connected drives
            • Suspicious use of SetThreadContext
            • Drops file in Windows directory
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:2784
            • C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe
              "C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious behavior: RenamesItself
              • Suspicious use of WriteProcessMemory
              PID:3180
              • C:\Windows\SysWOW64\svchost.exe
                "C:\Windows\SysWOW64\svchost.exe"
                4⤵
                • Adds Run key to start application
                • Enumerates connected drives
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:3464
                • C:\Windows\SysWOW64\notepad.exe
                  "C:\Windows\SysWOW64\notepad.exe"
                  5⤵
                  • Adds Run key to start application
                  • Enumerates connected drives
                  PID:3592
              • C:\Windows\SysWOW64\calc.exe
                "C:\Windows\SysWOW64\calc.exe"
                4⤵
                  PID:3668
                • C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe
                  "C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe"
                  4⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:4496
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:768
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3248
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3348
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3412
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3500
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4896
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3840
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:1416
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                            1⤵
                              PID:4852
                            • C:\Windows\system32\taskhostw.exe
                              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                              1⤵
                                PID:2424
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2324
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2308
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:796
                                    • C:\Windows\System32\rundll32.exe
                                      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                      1⤵
                                        PID:3508

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe

                                        Filesize

                                        260KB

                                        MD5

                                        6e262f942aa819fe4555bc41df893c60

                                        SHA1

                                        ebcbdece979ecdb400e2dfe2a101ed15a8a1de25

                                        SHA256

                                        b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6

                                        SHA512

                                        736a5547b4c953d052575f959830f447a9a8f55d817cefa1704b1ec1e2a4f934ece18041d6ca10f28c4f245b384840e4388da4bb7520be64d6f3773000d85cbd

                                      • C:\Users\Admin\AppData\Local\Temp\b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6.exe

                                        Filesize

                                        260KB

                                        MD5

                                        6e262f942aa819fe4555bc41df893c60

                                        SHA1

                                        ebcbdece979ecdb400e2dfe2a101ed15a8a1de25

                                        SHA256

                                        b9605f80ee0f224142ca3d2f614d618c64eb7d351ea21f95bc7d56fed56e69e6

                                        SHA512

                                        736a5547b4c953d052575f959830f447a9a8f55d817cefa1704b1ec1e2a4f934ece18041d6ca10f28c4f245b384840e4388da4bb7520be64d6f3773000d85cbd

                                      • memory/2784-143-0x0000000002350000-0x00000000033DE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2784-133-0x0000000002350000-0x00000000033DE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2784-134-0x0000000002350000-0x00000000033DE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2784-135-0x0000000002350000-0x00000000033DE000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/2784-132-0x0000000000400000-0x0000000000447000-memory.dmp

                                        Filesize

                                        284KB

                                      • memory/2784-140-0x0000000000400000-0x0000000000447000-memory.dmp

                                        Filesize

                                        284KB

                                      • memory/3180-146-0x0000000000400000-0x0000000000429000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3180-155-0x0000000000400000-0x0000000000429000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3180-137-0x0000000000400000-0x0000000000429000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3464-148-0x0000000000730000-0x0000000000759000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3464-159-0x0000000000770000-0x00000000007BE000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/3464-162-0x0000000000730000-0x0000000000759000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-150-0x0000000000820000-0x0000000000849000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-164-0x0000000000860000-0x00000000008AE000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/3592-149-0x0000000000820000-0x0000000000849000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-163-0x0000000000820000-0x0000000000849000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-147-0x0000000000820000-0x0000000000849000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-145-0x0000000000820000-0x0000000000849000-memory.dmp

                                        Filesize

                                        164KB

                                      • memory/3592-161-0x0000000000860000-0x00000000008AE000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/3668-160-0x0000000001110000-0x000000000115E000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/4496-152-0x0000000000400000-0x000000000044E000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/4496-158-0x0000000000400000-0x000000000044E000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/4496-157-0x0000000000400000-0x000000000044E000-memory.dmp

                                        Filesize

                                        312KB

                                      • memory/4496-156-0x0000000000400000-0x000000000044E000-memory.dmp

                                        Filesize

                                        312KB