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Analysis

  • max time kernel
    113s
  • max time network
    137s
  • 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, 08:54

General

  • Target

    a6b4518d4fe63022c6637ee9a1be5c52d5f410ccffef615857691d80af6a3a7c.exe

  • Size

    135KB

  • MD5

    63ad30b98c976717941b784f75eec2c0

  • SHA1

    fcf7714969ccffb0492117851e5083b9f278af5a

  • SHA256

    a6b4518d4fe63022c6637ee9a1be5c52d5f410ccffef615857691d80af6a3a7c

  • SHA512

    b510f2bc92be91fac09eca8e183313dc690df21894e3627fe1996a2d28de4f83856b847417b4692bbe4310c73b614ffb1c575efa2a4be3e7a46cce18075662b2

  • SSDEEP

    3072:QNqMDUcnvXSj2wa2WI0oUSTRtWfcV64SsEE1URZANuZ7k:qqkUcnv0tfbTVCE1UUNuRk

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 7 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 13 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 18 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:784
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:392
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:780
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2504
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2484
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2768
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:900
                  • C:\Users\Admin\AppData\Local\Temp\a6b4518d4fe63022c6637ee9a1be5c52d5f410ccffef615857691d80af6a3a7c.exe
                    "C:\Users\Admin\AppData\Local\Temp\a6b4518d4fe63022c6637ee9a1be5c52d5f410ccffef615857691d80af6a3a7c.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Disables RegEdit via registry modification
                    • Windows security modification
                    • Adds Run key to start application
                    • Checks whether UAC is enabled
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4816
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3080
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3288
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3376
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3444
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3548
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3704
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:4652
                              • C:\Windows\system32\backgroundTaskHost.exe
                                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                1⤵
                                  PID:1632
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:1660

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/4816-132-0x0000000000800000-0x0000000000820000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4816-133-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4816-134-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4816-135-0x0000000000800000-0x0000000000820000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4816-136-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4816-137-0x0000000000800000-0x0000000000820000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4816-138-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB