Analysis

  • max time kernel
    171s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 18:29

General

  • Target

    1e6577ddaa44ca777389b3a96a29a422ce493eb45687ee313d4c4448d85c13d6.exe

  • Size

    216KB

  • MD5

    47260a2ac5488ae25c3bf2440fa28788

  • SHA1

    08fae40935906326dd2aa109387065592239d65a

  • SHA256

    1e6577ddaa44ca777389b3a96a29a422ce493eb45687ee313d4c4448d85c13d6

  • SHA512

    76932df26d004354886c96fbf8a3d3dcc14924f4035eb800ccea3950f7ab99ab885097772b3e18fd640b49be08e1573612b6dfcd3bed7711c84453aab15b4b62

  • SSDEEP

    6144:z5SplxAAZcR/6TkIN5aAQdlK8CQj6yALTIjIC:z5gXC1aod4qjlo0

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/

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.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 11 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.

  • 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\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:3524
    • C:\Windows\system32\backgroundTaskHost.exe
      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
      1⤵
        PID:3212
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:4688
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3820
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
              PID:3612
            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
              1⤵
                PID:3460
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                1⤵
                  PID:3356
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3156
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:780
                      • C:\Users\Admin\AppData\Local\Temp\1e6577ddaa44ca777389b3a96a29a422ce493eb45687ee313d4c4448d85c13d6.exe
                        "C:\Users\Admin\AppData\Local\Temp\1e6577ddaa44ca777389b3a96a29a422ce493eb45687ee313d4c4448d85c13d6.exe"
                        2⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Disables RegEdit via registry modification
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • 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:4880
                    • C:\Windows\system32\taskhostw.exe
                      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                      1⤵
                        PID:2880
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                        1⤵
                          PID:2516
                        • C:\Windows\system32\sihost.exe
                          sihost.exe
                          1⤵
                            PID:2448
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:328
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:812
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:804

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • memory/4880-132-0x0000000002450000-0x00000000034DE000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/4880-133-0x0000000001000000-0x0000000001033000-memory.dmp

                                  Filesize

                                  204KB

                                • memory/4880-134-0x0000000002450000-0x00000000034DE000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/4880-135-0x0000000002450000-0x00000000034DE000-memory.dmp

                                  Filesize

                                  16.6MB