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Analysis

  • max time kernel
    130s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2023, 04:02

General

  • Target

    NEAS.74c1a75ad25b02e803215c2f676146d0.exe

  • Size

    1.1MB

  • MD5

    74c1a75ad25b02e803215c2f676146d0

  • SHA1

    f8abbe2d9319799846311b70ef9383d66e14bacf

  • SHA256

    55eef54d3f27ef5d9465b19ab925786759f2cf5c6453998ba8daebf558bfa64a

  • SHA512

    631045fcc627bbef113f806186f52be6380bcea68202a8b67cd5b73224643de0e8111a5a48481f74af5b4f436f8369853ed5e264ddc29c3809660e14de05bc8c

  • SSDEEP

    1536:i+d5JPwFP816C9V29d95KTtSj1z49LsWENmlma03hIx:i+JsOpU9tScj1YYKma03h

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
  • UPX packed file 38 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 2 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\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:796
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:316
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2460
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3640
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3796
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
              1⤵
                PID:1208
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                1⤵
                  PID:3448
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                  1⤵
                    PID:4860
                  • 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:4364
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4204
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3764
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3920
                          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                            1⤵
                              PID:3732
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                              1⤵
                                PID:3428
                              • C:\Windows\Explorer.EXE
                                C:\Windows\Explorer.EXE
                                1⤵
                                  PID:3260
                                  • C:\Users\Admin\AppData\Local\Temp\NEAS.74c1a75ad25b02e803215c2f676146d0.exe
                                    "C:\Users\Admin\AppData\Local\Temp\NEAS.74c1a75ad25b02e803215c2f676146d0.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:4396
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2348
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2340
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:804
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4136
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:2800
                                          • C:\Windows\System32\wuapihost.exe
                                            C:\Windows\System32\wuapihost.exe -Embedding
                                            1⤵
                                              PID:1924
                                            • C:\Windows\system32\backgroundTaskHost.exe
                                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                              1⤵
                                                PID:2980
                                              • C:\Windows\System32\RuntimeBroker.exe
                                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                1⤵
                                                  PID:2992
                                                • C:\Windows\system32\DllHost.exe
                                                  C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                                  1⤵
                                                    PID:968

                                                  Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

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                                                  Downloads

                                                  • F:\pmmw.exe

                                                    Filesize

                                                    97KB

                                                    MD5

                                                    b26bbd83721d62c229a9f2fd6cfd65e3

                                                    SHA1

                                                    f8266b25c9b214c661f61cca41fd43a0e2b6144b

                                                    SHA256

                                                    de1bc5170dc25f6e81d36337f688e1b2397c3ba0926002e84d943034d7155296

                                                    SHA512

                                                    01d677fcb316887d93e5b97be0bf8c17674c1495e5344b744358c867244f12df8c3d1e985ef34bbcdf9b324731a717bb470dcc7d9a92cfd3a4debeed172f08f7

                                                  • memory/4396-32-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4396-4-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-5-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-7-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4396-8-0x0000000004270000-0x0000000004271000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/4396-6-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-9-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-12-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/4396-13-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-18-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-19-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-20-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-21-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-22-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-23-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-24-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-25-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-26-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-28-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-29-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-35-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-30-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                                    Filesize

                                                    72KB

                                                  • memory/4396-37-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-39-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-42-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-43-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-50-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-52-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-54-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-56-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-58-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-60-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-62-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-64-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-66-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-68-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-70-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-73-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-75-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-78-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-2-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-88-0x0000000000890000-0x000000000194A000-memory.dmp

                                                    Filesize

                                                    16.7MB

                                                  • memory/4396-89-0x0000000000400000-0x0000000000412000-memory.dmp

                                                    Filesize

                                                    72KB