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Analysis

  • max time kernel
    142s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2023, 21:19

General

  • Target

    NEAS.4a923dddfd11cd8fb13976bf59689860.dll

  • Size

    120KB

  • MD5

    4a923dddfd11cd8fb13976bf59689860

  • SHA1

    c8f3f44b427038af1e25f762bff581d2b0185852

  • SHA256

    5cbc78d517dea4c29b3d486e39806e8c96f13c0960f03ba12b9d11f039ac8c85

  • SHA512

    749d07d6bb3a392e9bafcbc9969cd400c53aa08bc6745862cff32d7d3d9fc879a0e3a53237dcdf96dd8305f4a6a6e064fa73e1d1811958138b8010f1e17a6500

  • SSDEEP

    3072:jK7YuNSrkEt4O6C6+IfXMWpLk3oEqvbdFFkbT:u7YuN57C6+mK35oFk

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
  • Executes dropped EXE 3 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 60 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\backgroundTaskHost.exe
    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
    1⤵
      PID:4256
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4a923dddfd11cd8fb13976bf59689860.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3380
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4a923dddfd11cd8fb13976bf59689860.dll,#1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4436
        • C:\Users\Admin\AppData\Local\Temp\e583fa4.exe
          C:\Users\Admin\AppData\Local\Temp\e583fa4.exe
          3⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Executes dropped EXE
          • 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:3116
        • C:\Users\Admin\AppData\Local\Temp\e5843bb.exe
          C:\Users\Admin\AppData\Local\Temp\e5843bb.exe
          3⤵
          • Executes dropped EXE
          PID:224
        • C:\Users\Admin\AppData\Local\Temp\e584b1d.exe
          C:\Users\Admin\AppData\Local\Temp\e584b1d.exe
          3⤵
          • Executes dropped EXE
          PID:1860
    • C:\Windows\system32\backgroundTaskHost.exe
      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
      1⤵
        PID:3864
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
        1⤵
          PID:2728
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3732
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:2884
            • 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:564
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4484
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:4160
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:4072
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3920
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3856
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3660
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3464
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3160
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2420
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2340
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2316
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:392
                                      • C:\Windows\system32\fontdrvhost.exe
                                        "fontdrvhost.exe"
                                        1⤵
                                          PID:832
                                        • C:\Windows\system32\fontdrvhost.exe
                                          "fontdrvhost.exe"
                                          1⤵
                                            PID:828
                                          • C:\Windows\System32\wuapihost.exe
                                            C:\Windows\System32\wuapihost.exe -Embedding
                                            1⤵
                                              PID:696

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\e583fa4.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e583fa4.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e5843bb.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e5843bb.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e584b1d.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e584b1d.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • C:\Users\Admin\AppData\Local\Temp\e584b1d.exe

                                              Filesize

                                              97KB

                                              MD5

                                              e2be15de1dcc87b18b2bb639352ddd94

                                              SHA1

                                              27aa240b489b36e964031b3a9899aff7d8affd73

                                              SHA256

                                              da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

                                              SHA512

                                              3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

                                            • memory/224-94-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/224-49-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/224-52-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/224-85-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1860-55-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1860-53-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1860-86-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1860-93-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/1860-40-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/3116-22-0x00000000019F0000-0x00000000019F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/3116-11-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-25-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-4-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/3116-24-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-20-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-41-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-6-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-31-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-8-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-42-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-43-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-44-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-46-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-47-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-26-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-18-0x0000000003BF0000-0x0000000003BF1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/3116-9-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-56-0x00000000019F0000-0x00000000019F2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/3116-84-0x0000000000400000-0x0000000000412000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/3116-58-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-59-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-60-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-62-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/3116-65-0x00000000007B0000-0x000000000186A000-memory.dmp

                                              Filesize

                                              16.7MB

                                            • memory/4436-10-0x00000000009D0000-0x00000000009D2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4436-13-0x0000000003F30000-0x0000000003F31000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/4436-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/4436-14-0x00000000009D0000-0x00000000009D2000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/4436-35-0x00000000009D0000-0x00000000009D2000-memory.dmp

                                              Filesize

                                              8KB