Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2022 15:12

General

  • Target

    a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991.exe

  • Size

    144KB

  • MD5

    81b177353700fe0b281553164542edb5

  • SHA1

    71e5049e4959a698861af9b8a5874437016bfac6

  • SHA256

    a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991

  • SHA512

    268e8eba6a1c882c29ee556bae6e6b84cf8f3fedacdbd2dcaec7d53728385b1a37c351bacea1ed98ff5e56a9cfeebab04480f23d8e655628b8deda11dd517dd4

  • SSDEEP

    3072:EGSGJnvd4kI4Q0LDLG/cY4pUAQIkXCrCwTh6xS9TWqmROod:XC903Lcn4JQI1rC+9T5YOI

Malware Config

Extracted

Family

xtremerat

C2

xstremaa.no-ip.info

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

  • Detect XtremeRAT payload 5 IoCs
  • 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
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • UPX packed file 9 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
  • Suspicious use of SetThreadContext 1 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.

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:3572
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
        PID:3508
      • C:\Windows\system32\DllHost.exe
        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
        1⤵
          PID:3416
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
          1⤵
            PID:3216
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
              PID:3076
              • C:\Users\Admin\AppData\Local\Temp\a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991.exe
                "C:\Users\Admin\AppData\Local\Temp\a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991.exe"
                2⤵
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:4300
                • C:\Users\Admin\AppData\Local\Temp\a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991.EXE
                  C:\Users\Admin\AppData\Local\Temp\a07f695718f9e4da6083aa495c68b7e2b0490c7f485859ee54267fc9e537b991.EXE
                  3⤵
                  • Modifies firewall policy service
                  • UAC bypass
                  • Windows security bypass
                  • 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:4920
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    4⤵
                      PID:2040
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 480
                        5⤵
                        • Program crash
                        PID:4464
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 504
                        5⤵
                        • Program crash
                        PID:4880
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
                      4⤵
                        PID:2060
                • C:\Windows\system32\taskhostw.exe
                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                  1⤵
                    PID:2580
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4604
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3832
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:3660
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2444
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2436
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:60
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:784
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:776
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2040 -ip 2040
                                    1⤵
                                      PID:976
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2040 -ip 2040
                                      1⤵
                                        PID:2272

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • memory/2040-142-0x0000000000000000-mapping.dmp

                                      • memory/2040-144-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-134-0x0000000000000000-mapping.dmp

                                      • memory/4920-135-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-137-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-139-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-140-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-138-0x0000000002390000-0x000000000341E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/4920-141-0x0000000002390000-0x000000000341E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/4920-143-0x0000000010000000-0x0000000010060000-memory.dmp

                                        Filesize

                                        384KB

                                      • memory/4920-145-0x0000000002390000-0x000000000341E000-memory.dmp

                                        Filesize

                                        16.6MB