Analysis

  • max time kernel
    32s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2025, 07:12

General

  • Target

    a635801a7936fd18c60ca594c5147f0ea80b886432d8f4ee42024e1b2fc9075c.dll

  • Size

    120KB

  • MD5

    d2265988dfb4dedf1506075991ac1ab1

  • SHA1

    03dd08f7440bca12bb1f738e12429c85395fbb6c

  • SHA256

    a635801a7936fd18c60ca594c5147f0ea80b886432d8f4ee42024e1b2fc9075c

  • SHA512

    3e454c1b1a68fa22a62be1cd15b7df360e6e3a4e92ee748310a2b89d1f84e4cece7e50029d0e3fe5e0b43ca1acfe03507c06ce8742a25f0f6aab7b06bf6b00e1

  • SSDEEP

    3072:ZUoX+8YXAsgA0NF4qbTQS+pZvCNe8bRhiR:BXpsWhMS+TvCNeQG

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
  • 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 4 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 13 IoCs

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

  • UPX packed file 25 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 5 IoCs

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

  • 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:780
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:788
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:64
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2564
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2612
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2948
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3388
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a635801a7936fd18c60ca594c5147f0ea80b886432d8f4ee42024e1b2fc9075c.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:652
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a635801a7936fd18c60ca594c5147f0ea80b886432d8f4ee42024e1b2fc9075c.dll,#1
                      3⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of WriteProcessMemory
                      PID:4852
                      • C:\Users\Admin\AppData\Local\Temp\e576c37.exe
                        C:\Users\Admin\AppData\Local\Temp\e576c37.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
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:1164
                      • C:\Users\Admin\AppData\Local\Temp\e576d7f.exe
                        C:\Users\Admin\AppData\Local\Temp\e576d7f.exe
                        4⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:3696
                      • C:\Users\Admin\AppData\Local\Temp\e579d1b.exe
                        C:\Users\Admin\AppData\Local\Temp\e579d1b.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
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:3652
                      • C:\Users\Admin\AppData\Local\Temp\e579d2a.exe
                        C:\Users\Admin\AppData\Local\Temp\e579d2a.exe
                        4⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:1744
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3552
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3760
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3856
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3924
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4004
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3544
                            • 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:4916
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:1460
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:3872

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\e576c37.exe

                                          Filesize

                                          97KB

                                          MD5

                                          bc850d76e7016a3b38d73f8ae2d75c34

                                          SHA1

                                          1f836046d4fcfca7fa36a7e38f86cf0d5ff04c77

                                          SHA256

                                          e28f69e06e7c73d7b55ed326a48c6e0e439d7de1baf3ce2ce93d8b9c7f8b1a87

                                          SHA512

                                          91a922cce353c3ec47911ce0a1ca42cdbebe19e893270983fc3027d5f6e757c2e544098a0032dc579fcb0218c35f30e48bc9dec836ba26f01c5d44664f8d4f05

                                        • C:\Windows\SYSTEM.INI

                                          Filesize

                                          257B

                                          MD5

                                          7286c309cfb018c42c6665c452cb8016

                                          SHA1

                                          ff9f2a2befafce96870dc3ea347a5bdc8a641ce8

                                          SHA256

                                          dc236d730a78e3d387b7e6f6769bd4e9f5085c32f99ae9fe51fe525c14dd61f9

                                          SHA512

                                          786705035f2a18f2ce8b6cc68baf6950ca4adefbfd4643c8803f3dd1cace7c9627ec165975d1c3ddbbbfa5eaae7602c303be12e2e5f894e55a8d0f1dab81571f

                                        • memory/1164-40-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-73-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-9-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-7-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/1164-11-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-12-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-10-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-23-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1164-5-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1164-102-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/1164-103-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1164-32-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-79-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-30-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/1164-78-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-19-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-26-0x00000000019B0000-0x00000000019B2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1164-75-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-18-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-34-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-36-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-37-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-38-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-39-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-6-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-93-0x00000000019B0000-0x00000000019B2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1164-27-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-66-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-46-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-64-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-62-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-58-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/1164-60-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1164-61-0x00000000007B0000-0x000000000186A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/1744-59-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1744-163-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3652-165-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/3652-159-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/3652-164-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3652-105-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/3696-43-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3696-45-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/3696-80-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3696-44-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3696-35-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3696-86-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/4852-21-0x00000000009E0000-0x00000000009E1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/4852-29-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

                                          Filesize

                                          2.0MB

                                        • memory/4852-20-0x00000000009B0000-0x00000000009B2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/4852-24-0x00000000009B0000-0x00000000009B2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/4852-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4852-55-0x00000000009B0000-0x00000000009B2000-memory.dmp

                                          Filesize

                                          8KB