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Analysis

  • max time kernel
    152s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 13:01

General

  • Target

    983fd27bec71b09f97d3b0d1317c025b4fec79f1e380e18cd9eb9b7d87439b71.exe

  • Size

    100KB

  • MD5

    0bd6e7c1a043bac16347db7e5bac1f25

  • SHA1

    aaaa90e62303db969b375acf2aa45534f8b91fd3

  • SHA256

    983fd27bec71b09f97d3b0d1317c025b4fec79f1e380e18cd9eb9b7d87439b71

  • SHA512

    68524ca268796c6adb51cb8294c2067721647af4d0ac2d9212a8ddca387771e8f26972e006070449914f70e3031fe4cd9c97f533f185c1e0fca7711006c70835

  • SSDEEP

    1536:/q20g5JIGpv3yuO/vAlR/4N1oi+d6f42WV7yZmjMkl2eC:C253x3jUGoA2WV+ERl2eC

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\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1300
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1432
        • C:\Users\Admin\AppData\Local\Temp\983fd27bec71b09f97d3b0d1317c025b4fec79f1e380e18cd9eb9b7d87439b71.exe
          "C:\Users\Admin\AppData\Local\Temp\983fd27bec71b09f97d3b0d1317c025b4fec79f1e380e18cd9eb9b7d87439b71.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:952
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1360

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/952-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

          Filesize

          8KB

        • memory/952-56-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/952-55-0x0000000001D70000-0x0000000002DFE000-memory.dmp

          Filesize

          16.6MB

        • memory/952-57-0x0000000001D70000-0x0000000002DFE000-memory.dmp

          Filesize

          16.6MB

        • memory/952-58-0x0000000074291000-0x0000000074293000-memory.dmp

          Filesize

          8KB

        • memory/952-59-0x0000000000250000-0x0000000000252000-memory.dmp

          Filesize

          8KB

        • memory/952-60-0x0000000000520000-0x0000000000522000-memory.dmp

          Filesize

          8KB

        • memory/952-61-0x0000000001D70000-0x0000000002DFE000-memory.dmp

          Filesize

          16.6MB

        • memory/952-62-0x0000000000250000-0x0000000000252000-memory.dmp

          Filesize

          8KB

        • memory/952-63-0x0000000000520000-0x0000000000522000-memory.dmp

          Filesize

          8KB

        • memory/952-64-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB