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Analysis

  • max time kernel
    145s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 11:11

General

  • Target

    c3c457ddad3262e6a29a71e4902eb04d73aeff163db68a6d1dd7db65e3182ed8.exe

  • Size

    100KB

  • MD5

    5a4586f77fa9fa816fb9861a26b69a40

  • SHA1

    11d30693fab9365bf1f39ac4e6407987a4c483af

  • SHA256

    c3c457ddad3262e6a29a71e4902eb04d73aeff163db68a6d1dd7db65e3182ed8

  • SHA512

    4d5b585ef35edbe4394ff1823717d7d08b847d7ff5a47e390fac34a1990ab9660a264dda45495d85758f11006cad756beb22ccce5f465cff70ce290dbeebde16

  • SSDEEP

    3072:OiRyNLV4DEEIGoWOp1FK2eii9yzGVf4F5K:OiRyNL2EtGi62eHwzcf4F5K

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
  • 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 5 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1164
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1196
        • C:\Users\Admin\AppData\Local\Temp\c3c457ddad3262e6a29a71e4902eb04d73aeff163db68a6d1dd7db65e3182ed8.exe
          "C:\Users\Admin\AppData\Local\Temp\c3c457ddad3262e6a29a71e4902eb04d73aeff163db68a6d1dd7db65e3182ed8.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Disables RegEdit via registry modification
          • 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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1908
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1120

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1908-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

          Filesize

          8KB

        • memory/1908-55-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

          Filesize

          16.6MB

        • memory/1908-56-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1908-57-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

          Filesize

          16.6MB

        • memory/1908-58-0x0000000075031000-0x0000000075033000-memory.dmp

          Filesize

          8KB

        • memory/1908-59-0x0000000000310000-0x0000000000312000-memory.dmp

          Filesize

          8KB

        • memory/1908-60-0x0000000004190000-0x0000000004192000-memory.dmp

          Filesize

          8KB

        • memory/1908-61-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

          Filesize

          16.6MB

        • memory/1908-62-0x0000000000310000-0x0000000000312000-memory.dmp

          Filesize

          8KB

        • memory/1908-63-0x0000000004190000-0x0000000004192000-memory.dmp

          Filesize

          8KB

        • memory/1908-64-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB