Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/11/2023, 08:10

General

  • Target

    NEAS.a551191cd9c3e2fcfa245c5e13ed0850.exe

  • Size

    65KB

  • MD5

    a551191cd9c3e2fcfa245c5e13ed0850

  • SHA1

    7952ed1b6194a330fa69527f49c9d7712f9cdadd

  • SHA256

    2ef40fd7bc0d04e0783adb695078d2d88775026895a31c5192ba7101b70d255f

  • SHA512

    64cb4ff3b63988e893a0b53aa36ae793a884542c936dbb7f85797624ab86a4e1415aa148552da9804be43a56ecfc51a5ce7a3c0c2c34cf43ab5fdddd5247129d

  • SSDEEP

    1536:/EvAAtmv1MBlmrHu+VDNR2PRa3d2x81R9C6dRcOyyauJ3gXS:jTdMo5HhdhcoJQXS

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 20 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 4 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:64
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:792
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:784
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3992
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3876
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3724
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                1⤵
                  PID:3532
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:3344
                    • C:\Users\Admin\AppData\Local\Temp\NEAS.a551191cd9c3e2fcfa245c5e13ed0850.exe
                      "C:\Users\Admin\AppData\Local\Temp\NEAS.a551191cd9c3e2fcfa245c5e13ed0850.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 Windows directory
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:4636
                  • C:\Windows\system32\taskhostw.exe
                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                    1⤵
                      PID:2476
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                      1⤵
                        PID:2392
                      • C:\Windows\system32\sihost.exe
                        sihost.exe
                        1⤵
                          PID:2380
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                          1⤵
                            PID:1532
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                            1⤵
                              PID:4604
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                              1⤵
                                PID:2108
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:1928
                                • 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:2400
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:3352
                                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                      1⤵
                                        PID:4080
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:3988
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:448

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • memory/4636-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4636-1-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-3-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-5-0x0000000000670000-0x0000000000672000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4636-6-0x0000000001C80000-0x0000000001C81000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4636-4-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-8-0x0000000000670000-0x0000000000672000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4636-9-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-10-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-16-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-17-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-18-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-19-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-20-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-21-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-22-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-23-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-24-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-25-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-27-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-28-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-29-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-33-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-34-0x0000000000880000-0x000000000193A000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4636-48-0x0000000000670000-0x0000000000672000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4636-55-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB