Analysis

  • max time kernel
    148s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-06-2022 06:57

General

  • Target

    21ee44f8ba4d0f79cb705677e56e7db90ead7a353494b2cf81084105a45a3d2f.exe

  • Size

    100KB

  • MD5

    dcef55ab4e4b1b316663ce986aaf2f45

  • SHA1

    404640d7910651c8c36e67c9810285ac437a36c8

  • SHA256

    21ee44f8ba4d0f79cb705677e56e7db90ead7a353494b2cf81084105a45a3d2f

  • SHA512

    56999c7c0402be175e566855a0350052c2d035698bfca0e2c0ac47e6a075bc117d6c30707d9addc5ddf2db8eb8f953eba0c87e5d199212648454b87b21509e17

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 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:1184
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1264
        • C:\Users\Admin\AppData\Local\Temp\21ee44f8ba4d0f79cb705677e56e7db90ead7a353494b2cf81084105a45a3d2f.exe
          "C:\Users\Admin\AppData\Local\Temp\21ee44f8ba4d0f79cb705677e56e7db90ead7a353494b2cf81084105a45a3d2f.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:1068
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1136

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1068-54-0x0000000075C51000-0x0000000075C53000-memory.dmp
          Filesize

          8KB

        • memory/1068-55-0x0000000001DC0000-0x0000000002E4E000-memory.dmp
          Filesize

          16.6MB

        • memory/1068-56-0x0000000000400000-0x0000000000415000-memory.dmp
          Filesize

          84KB

        • memory/1068-57-0x0000000074F11000-0x0000000074F13000-memory.dmp
          Filesize

          8KB

        • memory/1068-58-0x0000000001DC0000-0x0000000002E4E000-memory.dmp
          Filesize

          16.6MB

        • memory/1068-59-0x0000000000220000-0x0000000000222000-memory.dmp
          Filesize

          8KB

        • memory/1068-60-0x0000000003E20000-0x0000000003E22000-memory.dmp
          Filesize

          8KB

        • memory/1068-61-0x0000000001DC0000-0x0000000002E4E000-memory.dmp
          Filesize

          16.6MB

        • memory/1068-62-0x0000000000220000-0x0000000000222000-memory.dmp
          Filesize

          8KB

        • memory/1068-63-0x0000000003E20000-0x0000000003E22000-memory.dmp
          Filesize

          8KB