Analysis

  • max time kernel
    147s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2022 21:46

General

  • Target

    c4659d97da06e0cf20410fa56611035cadd35f26fb51124ac1488497a34821ac.exe

  • Size

    100KB

  • MD5

    9242b2309b4f04cc47ce1a1c9db2dd08

  • SHA1

    3d57a744d42a606b01f986e84b76c26e49c9831c

  • SHA256

    c4659d97da06e0cf20410fa56611035cadd35f26fb51124ac1488497a34821ac

  • SHA512

    be34899979975b8fe68005cb95f9f209424ab38a53b76878ddc2c4f20cc0c090728364355eab94ec9cc1440788b5edd6d685f46e3c3b3d6cd60302a30cad0952

  • SSDEEP

    1536:WDD1wCUgpGTnISQGTDRuzfgDchWYafGmJvTs/+5JTBMYbS2Hb5jo:WI2GTtTDGHhjk3vTE8yYbS2Hb

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
  • 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 20 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1128
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1280
        • C:\Users\Admin\AppData\Local\Temp\c4659d97da06e0cf20410fa56611035cadd35f26fb51124ac1488497a34821ac.exe
          "C:\Users\Admin\AppData\Local\Temp\c4659d97da06e0cf20410fa56611035cadd35f26fb51124ac1488497a34821ac.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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:852
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1240

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/852-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

          Filesize

          8KB

        • memory/852-55-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/852-56-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/852-57-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/852-58-0x0000000000350000-0x0000000000352000-memory.dmp

          Filesize

          8KB

        • memory/852-59-0x0000000074111000-0x0000000074113000-memory.dmp

          Filesize

          8KB

        • memory/852-60-0x0000000000870000-0x0000000000872000-memory.dmp

          Filesize

          8KB

        • memory/852-61-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/852-62-0x0000000000350000-0x0000000000352000-memory.dmp

          Filesize

          8KB

        • memory/852-63-0x0000000000870000-0x0000000000872000-memory.dmp

          Filesize

          8KB