Analysis

  • max time kernel
    124s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 15:03

General

  • Target

    38f6ea7d1003625d6c5b5ce402655e3e04c661793797ca9814acec9c7957299d.exe

  • Size

    2.7MB

  • MD5

    5507d3e951ba58d20ed36ade6b8cef0d

  • SHA1

    d9c6f8f4d5145202b131a5a86cbc60c766d56301

  • SHA256

    38f6ea7d1003625d6c5b5ce402655e3e04c661793797ca9814acec9c7957299d

  • SHA512

    b0a76e0182b98ab08ae4f1496ccfb661663fa083d3db7fcaef2901936ac80c6eab32f8317a03056202cf2c6c0caef09b0570fd821c9a5a6d9ba41066d9c9f746

  • SSDEEP

    24576:6uNn5zD6EXCX9ze9C7wccrm0lMxSElQOUuOhyktUze9C7wccrm0lMxSElQOUuOhT:HmvoOUuOhyktjOUuOhykt8U

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

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 37 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 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:772
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:64
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2532
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2556
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2688
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3428
                  • C:\Users\Admin\AppData\Local\Temp\38f6ea7d1003625d6c5b5ce402655e3e04c661793797ca9814acec9c7957299d.exe
                    "C:\Users\Admin\AppData\Local\Temp\38f6ea7d1003625d6c5b5ce402655e3e04c661793797ca9814acec9c7957299d.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
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:8
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3636
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3824
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3916
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3980
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4068
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3460
                            • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                              "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                              1⤵
                                PID:4476
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3416
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:3992
                                  • C:\Windows\system32\BackgroundTaskHost.exe
                                    "C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
                                    1⤵
                                      PID:208
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:4568
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4588

                                        Network

                                        MITRE ATT&CK Matrix ATT&CK v13

                                        Initial Access

                                        Replication Through Removable Media

                                        1
                                        T1091

                                        Persistence

                                        Create or Modify System Process

                                        1
                                        T1543

                                        Windows Service

                                        1
                                        T1543.003

                                        Privilege Escalation

                                        Create or Modify System Process

                                        1
                                        T1543

                                        Windows Service

                                        1
                                        T1543.003

                                        Abuse Elevation Control Mechanism

                                        1
                                        T1548

                                        Bypass User Account Control

                                        1
                                        T1548.002

                                        Defense Evasion

                                        Modify Registry

                                        5
                                        T1112

                                        Abuse Elevation Control Mechanism

                                        1
                                        T1548

                                        Bypass User Account Control

                                        1
                                        T1548.002

                                        Impair Defenses

                                        3
                                        T1562

                                        Disable or Modify Tools

                                        3
                                        T1562.001

                                        Discovery

                                        System Information Discovery

                                        2
                                        T1082

                                        Query Registry

                                        1
                                        T1012

                                        Peripheral Device Discovery

                                        1
                                        T1120

                                        Lateral Movement

                                        Replication Through Removable Media

                                        1
                                        T1091

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • F:\dfsa.exe
                                          Filesize

                                          97KB

                                          MD5

                                          4096af4dc61490249dbf1bf8abb9d95d

                                          SHA1

                                          c8a6b26f637ea85cfd7ebcfa03a7ea29553608b8

                                          SHA256

                                          ed89d96952526691b7b8188e680c3fd399de1cf13d4508540adf114398e9d550

                                          SHA512

                                          f71bbf7c5f57f93f127d4ffd10d4850fc19d51ac88b0267392af991fb8171dad11dd50723b5582f3f97cd9abd38831a23749798cbb9d717a0bd8ebc1e9976339

                                        • memory/8-26-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-71-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-5-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-6-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-7-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-13-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-14-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-15-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-28-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-17-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-18-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-19-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-20-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-21-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-22-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-24-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-25-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-0-0x0000000000400000-0x00000000006C5000-memory.dmp
                                          Filesize

                                          2.8MB

                                        • memory/8-16-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-4-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-44-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-35-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-38-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-40-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-42-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-33-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-46-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-53-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-55-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-57-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-59-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-61-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-63-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-65-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-67-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-69-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-31-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/8-2-0x0000000002B00000-0x0000000003BBA000-memory.dmp
                                          Filesize

                                          16.7MB