Analysis

  • max time kernel
    162s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 06:55

General

  • Target
    126ff53082c2e12c7654ecb4870c869d2c5583ef6a2a04cef39871b8ac29e141.dll
  • Size 120KB
  • Sample221107-hpxywsfder
  • SHA256 126ff53082c2e12c7654ecb4870c869d2c5583ef6a2a04cef39871b8ac29e141
  • 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 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
  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 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 21 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 53 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:1020
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:2456
            • C:\Windows\system32\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\126ff53082c2e12c7654ecb4870c869d2c5583ef6a2a04cef39871b8ac29e141.dll,#1
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4900
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32.exe C:\Users\Admin\AppData\Local\Temp\126ff53082c2e12c7654ecb4870c869d2c5583ef6a2a04cef39871b8ac29e141.dll,#1
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:8
                • C:\Users\Admin\AppData\Local\Temp\e571126.exe
                  C:\Users\Admin\AppData\Local\Temp\e571126.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 Program Files directory
                  • Drops file in Windows directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  • System policy modification
                  PID:4272
                • C:\Users\Admin\AppData\Local\Temp\e575c1a.exe
                  C:\Users\Admin\AppData\Local\Temp\e575c1a.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 WriteProcessMemory
                  • System policy modification
                  PID:4028
          • C:\Windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
              PID:2464
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
              1⤵
                PID:2368
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3368
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3260
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                    1⤵
                      PID:2736
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                        PID:2340
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3432
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3520
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4612
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:3708

                              Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    e571126.exe

                                    • Path C:\Users\Admin\AppData\Local\Temp\e571126.exe
                                    • Size 97KB
                                    • SHA256 104d1205952dcb6b35f72e93859dc0ecb9b87a740b88f3c6cd279b6b938cc149
                                    • MD5 SHA1 SHA512 SSDEEP

                                    e571126.exe

                                    • Path C:\Users\Admin\AppData\Local\Temp\e571126.exe
                                    • Size 97KB
                                    • SHA256 104d1205952dcb6b35f72e93859dc0ecb9b87a740b88f3c6cd279b6b938cc149
                                    • MD5 SHA1 SHA512 SSDEEP

                                    e575c1a.exe

                                    • Path C:\Users\Admin\AppData\Local\Temp\e575c1a.exe
                                    • Size 97KB
                                    • SHA256 104d1205952dcb6b35f72e93859dc0ecb9b87a740b88f3c6cd279b6b938cc149
                                    • MD5 SHA1 SHA512 SSDEEP

                                    e575c1a.exe

                                    • Path C:\Users\Admin\AppData\Local\Temp\e575c1a.exe
                                    • Size 97KB
                                    • SHA256 104d1205952dcb6b35f72e93859dc0ecb9b87a740b88f3c6cd279b6b938cc149
                                    • MD5 SHA1 SHA512 SSDEEP

                                    SYSTEM.INI

                                    • Path C:\Windows\SYSTEM.INI
                                    • Size 257B
                                    • SHA256 6c8ffe948bef4c9e6f2c079e7c9a9887433061787f8e3d96aa14390902916a24
                                    • MD5 SHA1 SHA512

                                    memory/8-136-0x0000000010000000-0x0000000010020000-memory.dmp

                                    memory/4028-147-0x0000000000880000-0x000000000193A000-memory.dmp

                                    memory/4028-144-0x0000000000400000-0x0000000000412000-memory.dmp

                                    memory/4028-149-0x0000000000880000-0x000000000193A000-memory.dmp

                                    memory/4028-150-0x0000000000400000-0x0000000000412000-memory.dmp

                                    memory/4028-151-0x0000000000880000-0x000000000193A000-memory.dmp

                                    memory/4272-140-0x0000000000750000-0x000000000180A000-memory.dmp

                                    memory/4272-139-0x0000000000750000-0x000000000180A000-memory.dmp

                                    memory/4272-138-0x0000000000750000-0x000000000180A000-memory.dmp

                                    memory/4272-145-0x0000000000400000-0x0000000000412000-memory.dmp

                                    memory/4272-146-0x0000000000750000-0x000000000180A000-memory.dmp

                                    memory/4272-137-0x0000000000400000-0x0000000000412000-memory.dmp