Analysis

  • max time kernel
    132s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 00:10

General

  • Target

    673962b1ff1300d5ee38f369793bb5163a662959bd442a4e7a6c2cd7eb0ba46f.dll

  • Size

    120KB

  • MD5

    6576eae6753291a8250217312eab8df9

  • SHA1

    7ea66af3adea00e27a92b7e757b1f2509b2be12a

  • SHA256

    673962b1ff1300d5ee38f369793bb5163a662959bd442a4e7a6c2cd7eb0ba46f

  • SHA512

    fa5d57a2b64c543aa4bdf4011861421cda1daa02b370f06151d7c0f5637ed2fb3eba1c01cc40198a5e995bfe3ae9bf5327312841f4c5272c64b804bbecf28bb4

  • SSDEEP

    1536:xtlJlb1Z0qMVmzdBe+g+jHLnaVOiIEYSWpJ/HTdjK63tz99dZ1I6zHH:xhlbPgVSr7jrmOvVSW3HBBzfHH

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 35 IoCs
  • UPX dump on OEP (original entry point) 41 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 35 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 16 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:772
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:776
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:316
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2680
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2696
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2884
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3500
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\673962b1ff1300d5ee38f369793bb5163a662959bd442a4e7a6c2cd7eb0ba46f.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1940
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\673962b1ff1300d5ee38f369793bb5163a662959bd442a4e7a6c2cd7eb0ba46f.dll,#1
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1388
                      • C:\Users\Admin\AppData\Local\Temp\e573f4b.exe
                        C:\Users\Admin\AppData\Local\Temp\e573f4b.exe
                        4⤵
                        • 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 Program Files directory
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:1004
                      • C:\Users\Admin\AppData\Local\Temp\e57414f.exe
                        C:\Users\Admin\AppData\Local\Temp\e57414f.exe
                        4⤵
                        • Executes dropped EXE
                        PID:2104
                      • C:\Users\Admin\AppData\Local\Temp\e575af1.exe
                        C:\Users\Admin\AppData\Local\Temp\e575af1.exe
                        4⤵
                        • Executes dropped EXE
                        PID:3456
                      • C:\Users\Admin\AppData\Local\Temp\e575b10.exe
                        C:\Users\Admin\AppData\Local\Temp\e575b10.exe
                        4⤵
                        • 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 WriteProcessMemory
                        • System policy modification
                        PID:2448
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3640
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3816
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3940
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4000
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4084
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3612
                            • 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:2584
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:464
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:4296
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:1996
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:4912
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:1884

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\e573f4b.exe

                                          Filesize

                                          97KB

                                          MD5

                                          87900b7ea6786a6556791f22d9b67115

                                          SHA1

                                          2cae089bab1775d7c06ba3aa9887564768ed5bff

                                          SHA256

                                          9a62525a253a3c1201f7dcb48d5e052fc1718fbbf91831a4faa96ea51be91fba

                                          SHA512

                                          374b11310a9928493171798c49e7daca01b7b206731d4834ed1b1461f22edec55185209221845cdd83cf2ff2e54a78abc6fb610c77299578c21b9a9e2177c58a

                                        • C:\Windows\SYSTEM.INI

                                          Filesize

                                          257B

                                          MD5

                                          729d4c8ec05966665857571818a4f067

                                          SHA1

                                          d7cb9fd55afedabd329bf49a7ba5ecfcd7abe43b

                                          SHA256

                                          6fc9f99929fb6eaee069d22a2a8b3ecc0cf090f740aa1b64a4ab2c883953ce0b

                                          SHA512

                                          69e8c0aeaac078e3f474dedab04c1e83e90a9bd7d34a2596328aeb122099a967600947c54b66789787f6cb0e7d2a616485a274bdff0024adc9dca0b5ec82eae8

                                        • memory/1004-60-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-85-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-8-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-13-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-5-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1004-114-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1004-35-0x00000000005F0000-0x00000000005F2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1004-61-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-21-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-32-0x00000000005F0000-0x00000000005F2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1004-99-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-102-0x00000000005F0000-0x00000000005F2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1004-26-0x0000000000600000-0x0000000000601000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1004-93-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-20-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-11-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-19-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-12-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-10-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-37-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-38-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-39-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-40-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-41-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-43-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-44-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-92-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-91-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-58-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-89-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-88-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-9-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-22-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-84-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-83-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-81-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-80-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-77-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1004-63-0x00000000008C0000-0x000000000197A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1388-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1388-27-0x0000000004580000-0x0000000004582000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1388-31-0x0000000004A50000-0x0000000004A51000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1388-30-0x0000000004580000-0x0000000004582000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1388-23-0x0000000004580000-0x0000000004582000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/2104-66-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2104-71-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/2104-135-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2104-36-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2104-74-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/2448-165-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2448-57-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2448-76-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/2448-131-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/2448-70-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2448-73-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/2448-164-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3456-68-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3456-146-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3456-75-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3456-72-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3456-50-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB