Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/03/2024, 21:48

General

  • Target
    8cde3c0c13e91824ba0dbbdeda17010c9c0a9ff1cfbde06e616ef6ff101ac9b3.dll
  • Size 120KB
  • Sample240317-1n4ddsgh62
  • SHA256 8cde3c0c13e91824ba0dbbdeda17010c9c0a9ff1cfbde06e616ef6ff101ac9b3
  • 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 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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 26 IoCs
  • UPX dump on OEP (original entry point) 27 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 26 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 10 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 59 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:800
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:808
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:64
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2408
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2440
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2524
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3348
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8cde3c0c13e91824ba0dbbdeda17010c9c0a9ff1cfbde06e616ef6ff101ac9b3.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:5108
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8cde3c0c13e91824ba0dbbdeda17010c9c0a9ff1cfbde06e616ef6ff101ac9b3.dll,#1
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1652
                      • C:\Users\Admin\AppData\Local\Temp\e57f637.exe
                        C:\Users\Admin\AppData\Local\Temp\e57f637.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:2132
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3624
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3864
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3968
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4072
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:784
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4148
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:5056
                              • 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:1116
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window
                                  1⤵
                                    PID:2984
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.70 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=122.0.2365.52 --initial-client-data=0x238,0x23c,0x240,0x234,0x2f0,0x7ffe83262e98,0x7ffe83262ea4,0x7ffe83262eb0
                                      2⤵
                                        PID:3148
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=2896 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:2
                                        2⤵
                                          PID:1616
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2916 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:3
                                          2⤵
                                            PID:728
                                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=3128 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
                                            2⤵
                                              PID:496
                                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --instant-process --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --mojo-platform-channel-handle=5284 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:1
                                              2⤵
                                                PID:1088
                                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --mojo-platform-channel-handle=5480 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:1
                                                2⤵
                                                  PID:1384
                                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
                                                  2⤵
                                                    PID:2328
                                                • C:\Windows\system32\backgroundTaskHost.exe
                                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                                  1⤵
                                                    PID:3380
                                                  • C:\Windows\system32\backgroundTaskHost.exe
                                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                                                    1⤵
                                                      PID:4760
                                                    • C:\Windows\system32\backgroundTaskHost.exe
                                                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                                      1⤵
                                                        PID:1064
                                                      • C:\Windows\System32\RuntimeBroker.exe
                                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                        1⤵
                                                          PID:2280
                                                        • C:\Windows\System32\RuntimeBroker.exe
                                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                          1⤵
                                                            PID:4572

                                                          Network

                                                                MITRE ATT&CK Enterprise v15

                                                                Replay Monitor

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                                                                Downloads

                                                                e57f637.exe

                                                                • Path C:\Users\Admin\AppData\Local\Temp\e57f637.exe
                                                                • Size 97KB
                                                                • SHA256 4c4b1912b2d59cc8fe597c796180006884ca598359ade0f5c6e287d1297c29a5
                                                                • MD5 SHA1 SHA512 SSDEEP

                                                                memory/1652-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                                                memory/2132-25-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-28-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-8-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-9-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-10-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-12-0x0000000001AC0000-0x0000000001AC1000-memory.dmp

                                                                memory/2132-14-0x0000000001AB0000-0x0000000001AB2000-memory.dmp

                                                                memory/2132-11-0x0000000001AB0000-0x0000000001AB2000-memory.dmp

                                                                memory/2132-27-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-16-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-17-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-22-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-23-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-24-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-6-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-5-0x0000000000400000-0x0000000000412000-memory.dmp

                                                                memory/2132-13-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-26-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-29-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-31-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-32-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-33-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-35-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-38-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-40-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-42-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-45-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-47-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-49-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-51-0x00000000007B0000-0x000000000186A000-memory.dmp

                                                                memory/2132-62-0x0000000001AB0000-0x0000000001AB2000-memory.dmp

                                                                memory/2132-69-0x0000000000400000-0x0000000000412000-memory.dmp