Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 11:33

General

  • Target

    42e17c8a943a982ca456bcdd451ab6098dee4a0231f4aa2bd871868bcf1208f0.exe

  • Size

    65KB

  • MD5

    d41eecf2ac023d8eb42f2fc9011e3e12

  • SHA1

    c4d9a9012f436c5bc9a5a95a74111d3c67ec3156

  • SHA256

    42e17c8a943a982ca456bcdd451ab6098dee4a0231f4aa2bd871868bcf1208f0

  • SHA512

    1882cc0036f835dbfe300312eea336d1c1e638eeac6fcdb3f02bf88a931768225871c9b27c9dee157f1dbf3e187b624c28ea49ce96ccf7004ce91a23bd471172

  • SSDEEP

    1536:ta+EprvZocS75XxXz+lm2gN/rSTJMAbtRkkw7k:tNUjGceXVzMmjNTAJF0k

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 33 IoCs
  • UPX dump on OEP (original entry point) 34 IoCs
  • UPX packed file 33 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 15 IoCs

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

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:792
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:800
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:468
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2712
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2780
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2956
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3440
                  • C:\Users\Admin\AppData\Local\Temp\42e17c8a943a982ca456bcdd451ab6098dee4a0231f4aa2bd871868bcf1208f0.exe
                    "C:\Users\Admin\AppData\Local\Temp\42e17c8a943a982ca456bcdd451ab6098dee4a0231f4aa2bd871868bcf1208f0.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Enumerates connected drives
                    • 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:4880
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3584
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3760
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3848
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3916
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4008
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4192
                            • 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:4240
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:1876

                                Network

                                MITRE ATT&CK Matrix ATT&CK v13

                                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

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/4880-0-0x0000000000400000-0x0000000000412000-memory.dmp
                                  Filesize

                                  72KB

                                • memory/4880-16-0x0000000003FB0000-0x0000000003FB1000-memory.dmp
                                  Filesize

                                  4KB

                                • memory/4880-15-0x00000000037A0000-0x00000000037A2000-memory.dmp
                                  Filesize

                                  8KB

                                • memory/4880-14-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-1-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-4-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-6-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-18-0x00000000037A0000-0x00000000037A2000-memory.dmp
                                  Filesize

                                  8KB

                                • memory/4880-8-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-17-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-13-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-20-0x00000000037A0000-0x00000000037A2000-memory.dmp
                                  Filesize

                                  8KB

                                • memory/4880-19-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-5-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-3-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-21-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-23-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-22-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-24-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-25-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-26-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-28-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-29-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-30-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-32-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-33-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-35-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-37-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-40-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-43-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-44-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-45-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-47-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-49-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-51-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-52-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-53-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-64-0x00000000037A0000-0x00000000037A2000-memory.dmp
                                  Filesize

                                  8KB

                                • memory/4880-58-0x0000000000740000-0x00000000017FA000-memory.dmp
                                  Filesize

                                  16.7MB

                                • memory/4880-74-0x0000000000400000-0x0000000000412000-memory.dmp
                                  Filesize

                                  72KB