Analysis

  • max time kernel
    156s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 01:15

General

  • Target

    82f54db361d2de484ead402dbe6b5b3614e69f95b85103f26270cb69bcb859e7.exe

  • Size

    97KB

  • MD5

    03eff1d554ea593a2d47f24f21a33b00

  • SHA1

    606ea2e875a0c4f7cd5b572158b80d5f8c0c107e

  • SHA256

    82f54db361d2de484ead402dbe6b5b3614e69f95b85103f26270cb69bcb859e7

  • SHA512

    761a7385f679ed9fe45b968e4130a05803f6b0621e19761e4ebc0b2a3075b1a433e1d476d8e20946391d15da981553441fe636668ce5a04bdfd5739aa9617fdc

  • SSDEEP

    1536:52pPF3oDdXP1G5fq4e7oI80kHO9JF7nla4v+HFdXzNYjvxJ2E+EaoqFa0WQxsD2E:52pPF4hXkdNJux7nlalHFdDNYDX+8k

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

  • 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
  • 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
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 2 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 30 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:64
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
        1⤵
          PID:2500
        • C:\Windows\system32\taskhostw.exe
          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
          1⤵
            PID:2740
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2480
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:1080
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3528
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3676
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3432
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3364
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3268
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2596
                            • C:\Users\Admin\AppData\Local\Temp\82f54db361d2de484ead402dbe6b5b3614e69f95b85103f26270cb69bcb859e7.exe
                              "C:\Users\Admin\AppData\Local\Temp\82f54db361d2de484ead402dbe6b5b3614e69f95b85103f26270cb69bcb859e7.exe"
                              2⤵
                              • Modifies firewall policy service
                              • UAC bypass
                              • Windows security bypass
                              • Windows security modification
                              • Checks whether UAC is enabled
                              • Enumerates connected drives
                              • Drops autorun.inf file
                              • 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:2688
                          • C:\Windows\system32\fontdrvhost.exe
                            "fontdrvhost.exe"
                            1⤵
                              PID:788

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

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                            Downloads

                            • memory/2688-132-0x0000000000400000-0x0000000000412000-memory.dmp

                              Filesize

                              72KB

                            • memory/2688-133-0x00000000007B0000-0x000000000186A000-memory.dmp

                              Filesize

                              16.7MB

                            • memory/2688-134-0x00000000007B0000-0x000000000186A000-memory.dmp

                              Filesize

                              16.7MB

                            • memory/2688-135-0x00000000007B0000-0x000000000186A000-memory.dmp

                              Filesize

                              16.7MB

                            • memory/2688-136-0x0000000000400000-0x0000000000412000-memory.dmp

                              Filesize

                              72KB