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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
    11/10/2022, 05:38

General

  • Target

    395f805f8cc65f476c36cf09904f5cdb8b5d24ce9bbdcec087d2688f1bcd705e.exe

  • Size

    240KB

  • MD5

    19f3855a02621e813a6a15b1797c6047

  • SHA1

    36cda19fa394c6255a2134748ae6b8340451c67a

  • SHA256

    395f805f8cc65f476c36cf09904f5cdb8b5d24ce9bbdcec087d2688f1bcd705e

  • SHA512

    152f7853d9403e4a35d1c8bdf5b572316fd44e57f985b8421a1b32dddc1a75031b42fd7739c4865c6443f1f0fd1b52316b0fb367800f18d3e41c8e63282ecd6c

  • SSDEEP

    3072:bQITRTXJf45CkcwnJG9z0tqdfhDJ0gnlVq4E6KBfAXGdX4Nf7wOpR9AQFvCl6KBE:bHp1kFJ9AdDXlonC9NTw8aQmnNIsu

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

  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • UPX packed file 3 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 62 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:792
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:400
      • C:\Windows\system32\backgroundTaskHost.exe
        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
        1⤵
          PID:5096
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:5116
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3868
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3604
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3524
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3436
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3292
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3080
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:2792
                          • C:\Users\Admin\AppData\Local\Temp\395f805f8cc65f476c36cf09904f5cdb8b5d24ce9bbdcec087d2688f1bcd705e.exe
                            "C:\Users\Admin\AppData\Local\Temp\395f805f8cc65f476c36cf09904f5cdb8b5d24ce9bbdcec087d2688f1bcd705e.exe"
                            2⤵
                            • UAC bypass
                            • 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:2312
                            • C:\Windows\SysWOW64\netsh.exe
                              netsh firewall set opmode disable
                              3⤵
                              • Modifies Windows Firewall
                              PID:1404
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2492
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2388
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2376
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:800
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:3988

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

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                                  Downloads

                                  • memory/1404-137-0x0000000004F00000-0x0000000005F30000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2312-132-0x0000000000400000-0x0000000000452000-memory.dmp

                                    Filesize

                                    328KB

                                  • memory/2312-133-0x00000000023D0000-0x0000000003400000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2312-135-0x0000000000400000-0x0000000000452000-memory.dmp

                                    Filesize

                                    328KB

                                  • memory/2312-136-0x00000000023D0000-0x0000000003400000-memory.dmp

                                    Filesize

                                    16.2MB