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Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 18:51

General

  • Target

    94f3a3ef0d914aa3bbe8297eb065f5108820a8c4d7df5e455824ebd747e3dafc.exe

  • Size

    410KB

  • MD5

    0e265c41cf42ba3cb7fb893ff98da186

  • SHA1

    3d7e4f5c12ecc284a92e6dcf1dd9c1603ec9e473

  • SHA256

    94f3a3ef0d914aa3bbe8297eb065f5108820a8c4d7df5e455824ebd747e3dafc

  • SHA512

    bede6020e2a83050691af1e0acd1bce5ae61777066380bb310d5bd5646c86b2d9c48137ae97601af769d2ee70ed32ee604ab9dd5100164260f0fd5919481b4fa

  • SSDEEP

    6144:72EGyyn8t8qgCJs/IrELgoNPrpO7LIyPLldmbvuXMjR1y9lZpIM2cHheqKUhvRO5:7YqgN/IrEkoNk7L6zSZp9PQ

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/

http://klkjwre77638dfqwieuoi888.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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 3 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:1020
    • C:\Windows\system32\taskhostw.exe
      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
      1⤵
        PID:2484
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
        1⤵
          PID:2392
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2376
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
              PID:3060
              • C:\Users\Admin\AppData\Local\Temp\94f3a3ef0d914aa3bbe8297eb065f5108820a8c4d7df5e455824ebd747e3dafc.exe
                "C:\Users\Admin\AppData\Local\Temp\94f3a3ef0d914aa3bbe8297eb065f5108820a8c4d7df5e455824ebd747e3dafc.exe"
                2⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Disables RegEdit via registry modification
                • Checks computer location settings
                • Windows security modification
                • Checks whether UAC is enabled
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:800
                • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
                  "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
                  3⤵
                  • Drops file in Program Files directory
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:3556
                  • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe
                    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"
                    4⤵
                      PID:1936
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3508
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3424
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3276
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3812
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4808
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3592
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3080
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:788
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:780

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\AdobeARM.log

                                  Filesize

                                  358B

                                  MD5

                                  21819093a1f6294ed6c57e8545de5368

                                  SHA1

                                  8594599080d691cdb92273dc59e9d717b0dd3407

                                  SHA256

                                  e25d9f42132ed346178257f61dff703f126b1fe2f125601edc6819d07d5e4bcc

                                  SHA512

                                  7de8d4dcf9204dacbddb0216281ec22037fbc21fd4cf866f328709bbb5b58ae2d334598548e7ee2e64a4d38074ba61e0fcc6d56be34bdd3af880a356bcaf45c2

                                • memory/800-132-0x0000000000EC0000-0x0000000000F2B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/800-133-0x0000000002D10000-0x0000000003D9E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/800-134-0x0000000002D10000-0x0000000003D9E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/800-136-0x0000000000EC0000-0x0000000000F2B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/800-138-0x0000000002D10000-0x0000000003D9E000-memory.dmp

                                  Filesize

                                  16.6MB