Analysis

  • max time kernel
    42s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 01:46

General

  • Target

    836669173d279f786c284114689d3b20085fea86f2ccbdda4736e542a5b3419aN.exe

  • Size

    728KB

  • MD5

    a12515737c5a5104aeae4770e438edb0

  • SHA1

    3db635b3078f8f49d621a83e433e013fc7517734

  • SHA256

    836669173d279f786c284114689d3b20085fea86f2ccbdda4736e542a5b3419a

  • SHA512

    182be481d9b10e8b6eef9f5d7240420fadb36e08a394a84acb5845de434c41ce7a6683a22fd8bb6ae380c0ae99373530730be99ab9d1103ec2d3ba21c461a30d

  • SSDEEP

    12288:VTyjXW+48qWywrU4kGFezOAVuJ5PIQww7F5DO3HYffmZ8HHWY4:ZIXW/8yw1ez54lImF5SXYHmy2Y4

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 3 TTPs 6 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • UPX packed file 38 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:764
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:772
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:1020
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2796
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2908
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:3028
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3520
                  • C:\Users\Admin\AppData\Local\Temp\836669173d279f786c284114689d3b20085fea86f2ccbdda4736e542a5b3419aN.exe
                    "C:\Users\Admin\AppData\Local\Temp\836669173d279f786c284114689d3b20085fea86f2ccbdda4736e542a5b3419aN.exe"
                    2⤵
                    • Modifies firewall policy service
                    • Modifies visibility of file extensions in Explorer
                    • Modifies visiblity of hidden/system files in Explorer
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Adds Run key to start application
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:1844
                    • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
                      C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
                      3⤵
                      • Modifies firewall policy service
                      • Modifies visiblity of hidden/system files in Explorer
                      • UAC bypass
                      • Windows security bypass
                      • Executes dropped EXE
                      • Windows security modification
                      • Checks whether UAC is enabled
                      • Enumerates connected drives
                      • Drops file in Windows directory
                      • System Location Discovery: System Language Discovery
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:3640
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3616
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3812
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3920
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4020
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:1088
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3952
                            • 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:2528
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:2516
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:4936

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Temp\0E57FD4C_Rar\rundll32.exe

                                    Filesize

                                    664KB

                                    MD5

                                    2eb5d76180ce7b3241b281fa79ab3483

                                    SHA1

                                    06293dea80e39c7eb7ee2bdb00d60b58d932fa8a

                                    SHA256

                                    e1b9beb4617a720d55afaec364941bb18ea2c456a8b06b30a736f0cbb5c297e8

                                    SHA512

                                    35f553c76fc67afb88a6a090fcbad6af3e2faae154c9c84bd869714194012525a2d42b76dad855805f107a37c351f0de08fd9a03d8ddc1dd400d64640d81b90b

                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe

                                    Filesize

                                    728KB

                                    MD5

                                    a12515737c5a5104aeae4770e438edb0

                                    SHA1

                                    3db635b3078f8f49d621a83e433e013fc7517734

                                    SHA256

                                    836669173d279f786c284114689d3b20085fea86f2ccbdda4736e542a5b3419a

                                    SHA512

                                    182be481d9b10e8b6eef9f5d7240420fadb36e08a394a84acb5845de434c41ce7a6683a22fd8bb6ae380c0ae99373530730be99ab9d1103ec2d3ba21c461a30d

                                  • C:\Windows\SYSTEM.INI

                                    Filesize

                                    257B

                                    MD5

                                    081b9f31075abab0cf62ff854301094d

                                    SHA1

                                    d5f2611b14d5d004159eea487fbfe9f8d4aae7a3

                                    SHA256

                                    4fc5cca6ef110c68b50fd73f96a2f3a5e4c72b81ed54afeccb429331ee0e0a98

                                    SHA512

                                    862c49fe7a6bb2c36c9d3376ad82434d5826f3d53fe680102a0166d6b1bad52d717c24d1edd6786f0f96f413ab6052a4f27bf443df641aeedba39a67a12adc8f

                                  • C:\afso.exe

                                    Filesize

                                    97KB

                                    MD5

                                    5525d042a30709efc0ee8c0815a64d88

                                    SHA1

                                    061b88a895347f37b4c32bcbd578dfd44110f459

                                    SHA256

                                    b3781752f873991893be4f6ab6f8063d16fc8dc63e6276b498b69c247021eb87

                                    SHA512

                                    8685fdc1811073fb0fd3070e1351296cf296c1090864799ef7a6a2910126a105d9165f44823af4b47ddc5cb10805977bfa64cd79bc5afc08f3cd9cadd95faae1

                                  • memory/1844-0-0x0000000000400000-0x00000000004BE000-memory.dmp

                                    Filesize

                                    760KB

                                  • memory/1844-5-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-12-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-16-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-21-0x00000000087A0000-0x00000000087A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1844-23-0x0000000008250000-0x0000000008252000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1844-24-0x0000000008250000-0x0000000008252000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1844-19-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-13-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-20-0x0000000008250000-0x0000000008252000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1844-18-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-6-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-4-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-3-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-26-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-22-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-25-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-38-0x0000000008250000-0x0000000008252000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1844-31-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-29-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-34-0x00000000032A0000-0x000000000435A000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/1844-53-0x0000000000400000-0x00000000004BE000-memory.dmp

                                    Filesize

                                    760KB

                                  • memory/3640-54-0x0000000000400000-0x00000000004BE000-memory.dmp

                                    Filesize

                                    760KB

                                  • memory/3640-55-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-64-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-73-0x0000000000AC0000-0x0000000000AC2000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3640-63-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-59-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-57-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-65-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-62-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-60-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-58-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-67-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/3640-61-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-74-0x0000000000AC0000-0x0000000000AC2000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3640-75-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-76-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-77-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-78-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-79-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-81-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-82-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-83-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-84-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-86-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-87-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-94-0x0000000000AC0000-0x0000000000AC2000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3640-95-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-98-0x0000000004EF0000-0x0000000005FAA000-memory.dmp

                                    Filesize

                                    16.7MB

                                  • memory/3640-143-0x0000000000400000-0x00000000004BE000-memory.dmp

                                    Filesize

                                    760KB