Analysis

  • max time kernel
    22s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 04:15

General

  • Target
    e1b2e96bb57c7afc2c5a7d4bf84a58d360e7363eaa71427d6360829130b1d7c6.exe
  • Size 332KB
  • Sample240611-evdknavbpp
  • SHA256 e1b2e96bb57c7afc2c5a7d4bf84a58d360e7363eaa71427d6360829130b1d7c6
  • MD5 SHA1 SHA512 SSDEEP

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 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 36 IoCs
  • UPX dump on OEP (original entry point) 40 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 36 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 6 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:764
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:768
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:1020
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2540
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2572
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2692
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3488
                  • C:\Users\Admin\AppData\Local\Temp\e1b2e96bb57c7afc2c5a7d4bf84a58d360e7363eaa71427d6360829130b1d7c6.exe
                    "C:\Users\Admin\AppData\Local\Temp\e1b2e96bb57c7afc2c5a7d4bf84a58d360e7363eaa71427d6360829130b1d7c6.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:2584
                    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
                      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
                      3⤵
                      • Modifies firewall policy service
                      • UAC bypass
                      • Windows security bypass
                      • Executes dropped EXE
                      • Loads dropped DLL
                      • Windows security modification
                      • Checks whether UAC is enabled
                      • Enumerates connected drives
                      • Drops file in Windows directory
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:1408
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3588
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3796
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3884
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3952
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4032
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:824
                            • 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:1952
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4860
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:4072
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:2956
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:2168

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            Au_.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\0E57474A_Rar\Au_.exe
                                            • Size 256KB
                                            • SHA256 1825160a506ec596c02ab9869493671bd5c00118e602afc4a3c254a378c024c5
                                            • MD5 SHA1 SHA512 SSDEEP

                                            LangDLL.dll

                                            • Path C:\Users\Admin\AppData\Local\Temp\nsf476B.tmp\LangDLL.dll
                                            • Size 7KB
                                            • SHA256 32487e83679c88f63f35a9989e58ef3a3084bd70b6ebe76cda459c92ebf2c066
                                            • MD5 SHA1 SHA512 SSDEEP

                                            UAC.dll

                                            • Path C:\Users\Admin\AppData\Local\Temp\nsf476B.tmp\UAC.dll
                                            • Size 36KB
                                            • SHA256 07ad34100502d7aebd8c19cf6fabda31814312984ae25d26b081ddebf3926077
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Au_.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
                                            • Size 332KB
                                            • SHA256 e1b2e96bb57c7afc2c5a7d4bf84a58d360e7363eaa71427d6360829130b1d7c6
                                            • MD5 SHA1 SHA512 SSDEEP

                                            SYSTEM.INI

                                            • Path C:\Windows\SYSTEM.INI
                                            • Size 257B
                                            • SHA256 2473a94475bcbbe596e68b5200140a5a55cbbcd6371bf9d29ef2e0fcba3faaf7
                                            • MD5 SHA1 SHA512

                                            apvyp.pif

                                            • Path C:\apvyp.pif
                                            • Size 97KB
                                            • SHA256 f6487ed50319212417b9f4867bbbc3994093c2e9fafbae2919d12656fbe07925
                                            • MD5 SHA1 SHA512 SSDEEP

                                            memory/1408-87-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-88-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-135-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-136-0x0000000004450000-0x0000000004452000-memory.dmp

                                            memory/1408-104-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-102-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-42-0x0000000000400000-0x0000000000480000-memory.dmp

                                            memory/1408-100-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-97-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-64-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-94-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-92-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-91-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-89-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-71-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-84-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-59-0x0000000000400000-0x0000000000480000-memory.dmp

                                            memory/1408-85-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-77-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-76-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-60-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-79-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-80-0x0000000004450000-0x0000000004452000-memory.dmp

                                            memory/1408-72-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-83-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-96-0x0000000000400000-0x0000000000480000-memory.dmp

                                            memory/1408-62-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-65-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-75-0x0000000004450000-0x0000000004452000-memory.dmp

                                            memory/1408-74-0x0000000007880000-0x0000000007881000-memory.dmp

                                            memory/1408-63-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-82-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/1408-81-0x00000000056C0000-0x000000000677A000-memory.dmp

                                            memory/2584-9-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            memory/2584-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                            memory/2584-3-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-0-0x0000000000400000-0x0000000000480000-memory.dmp

                                            memory/2584-8-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-18-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            memory/2584-32-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            memory/2584-16-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-4-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-45-0x0000000000400000-0x0000000000480000-memory.dmp

                                            memory/2584-6-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-21-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-7-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-19-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            memory/2584-20-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-17-0x00000000026C0000-0x000000000377A000-memory.dmp

                                            memory/2584-1-0x00000000026C0000-0x000000000377A000-memory.dmp