Analysis

  • max time kernel
    122s
  • max time network
    130s
  • 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, 05:41

General

  • Target

    add36b5b21f775d2ea11c57c78fe7947.exe

  • Size

    96KB

  • MD5

    add36b5b21f775d2ea11c57c78fe7947

  • SHA1

    3ec05dfe7a3fdc01c17f74aac6daf39116eab6ef

  • SHA256

    6dec06440131cf4c255ee5e482aca9ad4d913576091502fac8ab5b038887a281

  • SHA512

    3e0f7eb44c7139f56914297cf2bb6a51b326b8953a0a4a8623ad694c8914036b1ff74ff5712306fa060cd91a23966868b6bce7a312dee76d77f57fa1c49f4aa8

  • SSDEEP

    3072:dYNKSA4HhT+Tg3H1ysg8HZDUX8RAgtwxwmJ:dYNVAm+Tg3VIr8OwwimJ

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

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

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
  • UPX packed file 36 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 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:376
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:804
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:800
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:3448
            • C:\Users\Admin\AppData\Local\Temp\add36b5b21f775d2ea11c57c78fe7947.exe
              "C:\Users\Admin\AppData\Local\Temp\add36b5b21f775d2ea11c57c78fe7947.exe"
              2⤵
              • Modifies firewall policy service
              • UAC bypass
              • Windows security bypass
              • Windows security modification
              • Checks whether UAC is enabled
              • Enumerates connected drives
              • Drops autorun.inf file
              • Drops file in Program Files directory
              • Drops file in Windows directory
              • Modifies registry class
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              • System policy modification
              PID:2328
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4004
            • 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\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                1⤵
                  PID:3856
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                  1⤵
                    PID:3180
                  • C:\Windows\system32\backgroundTaskHost.exe
                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                    1⤵
                      PID:1556
                    • C:\Windows\system32\backgroundTaskHost.exe
                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                      1⤵
                        PID:2848
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:2432
                        • 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:4472
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3748
                            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                              1⤵
                                PID:4088
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                1⤵
                                  PID:3656
                                • C:\Windows\system32\taskhostw.exe
                                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                  1⤵
                                    PID:2704
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                    1⤵
                                      PID:2576
                                    • C:\Windows\system32\sihost.exe
                                      sihost.exe
                                      1⤵
                                        PID:2548
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:2472
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:772

                                          Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

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                                                Downloads

                                                • F:\rbjn.exe

                                                  Filesize

                                                  96KB

                                                  MD5

                                                  369579ebc7d27bf5bc3b3f1d6e9ac311

                                                  SHA1

                                                  6a9195c33239b8c7d7890674552615e5bcbafde2

                                                  SHA256

                                                  98fd4cc0cb40630ac0016f65ce63e53653fda14806176e0a0af726c6f7227ec5

                                                  SHA512

                                                  61fb55698745e97a0f7a98100034cacf2dfb581a292a233d3851dc18ca1fa99e1f26e1c9f3b07dd56e84dd2dad92dd18689f56c760ddfa35071d4f9cfb1d3c09

                                                • memory/2328-22-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-25-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-4-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-6-0x00000000038E0000-0x00000000038E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/2328-7-0x00000000038F0000-0x00000000038F1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2328-5-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-8-0x00000000038E0000-0x00000000038E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/2328-9-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-10-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-11-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-12-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-13-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-14-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-15-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-16-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-17-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-18-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-20-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-21-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/2328-3-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-27-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-24-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-29-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-32-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-34-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-36-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-38-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-40-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-42-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-44-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-46-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-48-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-50-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-52-0x00000000038E0000-0x00000000038E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/2328-58-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-60-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-62-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-64-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-66-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/2328-1-0x0000000002180000-0x000000000320E000-memory.dmp

                                                  Filesize

                                                  16.6MB