Analysis

  • max time kernel
    147s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 08:51

General

  • Target

    Packed.Win32.Salpack.dll

  • Size

    120KB

  • MD5

    d1aa87b843048ddaaa60250a8d2356ee

  • SHA1

    99193bc74f0b9450211d78902a7b281aa45f45fe

  • SHA256

    9cba23e62607106638fbefce00cebfd267791bca3ac8289d7ec5ec2a346d0c28

  • SHA512

    fd885290957f4186ce12c536fa6b4b46890f172d52703bf8fc84dd5b03bae4336b429521f51baf335bd2c3eacc14159dc45f676eae1e9c97d2db096b51d8aa5c

  • SSDEEP

    3072:70IxCoyignbh6wL9cjPIR7axm3Bg5MDzZr4yD7a:3xCoyPbhJatm32YVz7a

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 26 IoCs
  • UPX dump on OEP (original entry point) 30 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 26 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 4 IoCs

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

  • 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:776
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:784
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:60
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:4008
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4080
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3868
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                1⤵
                  PID:3672
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:3520
                    • C:\Windows\system32\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4972
                      • C:\Windows\SysWOW64\rundll32.exe
                        rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:4292
                        • C:\Users\Admin\AppData\Local\Temp\e57b054.exe
                          C:\Users\Admin\AppData\Local\Temp\e57b054.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 AdjustPrivilegeToken
                          • Suspicious use of WriteProcessMemory
                          • System policy modification
                          PID:2536
                        • C:\Users\Admin\AppData\Local\Temp\e57b43c.exe
                          C:\Users\Admin\AppData\Local\Temp\e57b43c.exe
                          4⤵
                          • Executes dropped EXE
                          PID:1220
                        • C:\Users\Admin\AppData\Local\Temp\e57d060.exe
                          C:\Users\Admin\AppData\Local\Temp\e57d060.exe
                          4⤵
                          • Modifies firewall policy service
                          • UAC bypass
                          • Windows security bypass
                          • Executes dropped EXE
                          • Windows security modification
                          • Checks whether UAC is enabled
                          • Drops file in Windows directory
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of WriteProcessMemory
                          • System policy modification
                          PID:1416
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3500
                    • 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:1064
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4192
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3312
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2816
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2524
                              • C:\Windows\system32\backgroundTaskHost.exe
                                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                1⤵
                                  PID:4872
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:1524
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2496
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:4160
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:1708

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\e57b054.exe

                                                Filesize

                                                97KB

                                                MD5

                                                caf5df77dd351caf192c62df01558c5f

                                                SHA1

                                                23019aecb3f2825c43553c2cb8737cb488933bd7

                                                SHA256

                                                c1b3f78e6f24cced31d35f064ec9401160491f158ab8a88c42bbf39153c1e73b

                                                SHA512

                                                d223855ad608ed25c501cd21bc939a8588a8845e30ba9ddaac352cb5a87582eb66e02b1540c343c072bae50b14187dce02e26bf7eb407d8de031f9bc36e51d16

                                              • C:\Windows\SYSTEM.INI

                                                Filesize

                                                257B

                                                MD5

                                                635e78df1b3302774a6740f53e35567e

                                                SHA1

                                                9ee71222d7d9aaeff23857e7efc209eac59ec521

                                                SHA256

                                                866c1f09a2ad781c12dd7a4ee25d0054c9b4b3a6958a851280933cfbc16b54a2

                                                SHA512

                                                a9c25e2ff0340fe28d98ca735a57d11a8a1acbd661463aec2f3549b4f7542cefdfa6aaae9d5f863beb0d17430c6ca81ec3fdbc1cf18ea6877d2c73c562dbfd25

                                              • memory/1220-51-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/1220-49-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/1220-48-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/1220-80-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/1220-84-0x0000000000400000-0x0000000000412000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/1416-91-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-87-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-88-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-85-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-89-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-90-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-52-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/1416-113-0x0000000000400000-0x0000000000412000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/1416-114-0x0000000000B60000-0x0000000001C1A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/1416-39-0x0000000000400000-0x0000000000412000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/2536-44-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-13-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-41-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-42-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-43-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-4-0x0000000000400000-0x0000000000412000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/2536-45-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-30-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-6-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-29-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-28-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-54-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-55-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-56-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-60-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-73-0x00000000005B0000-0x00000000005B2000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/2536-61-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-17-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-83-0x0000000000400000-0x0000000000412000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/2536-19-0x00000000005B0000-0x00000000005B2000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/2536-8-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-16-0x00000000005C0000-0x00000000005C1000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/2536-40-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/2536-9-0x00000000007E0000-0x000000000189A000-memory.dmp

                                                Filesize

                                                16.7MB

                                              • memory/4292-10-0x0000000003C20000-0x0000000003C22000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/4292-12-0x0000000003C20000-0x0000000003C22000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/4292-11-0x0000000003C30000-0x0000000003C31000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/4292-36-0x0000000003C20000-0x0000000003C22000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/4292-1-0x0000000010000000-0x0000000010020000-memory.dmp

                                                Filesize

                                                128KB