Analysis

  • max time kernel
    147s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 07:13

General

  • Target

    79927b7246eb40b372a8a83bb8a57d823433905900ea88954a833249a347e861.exe

  • Size

    100KB

  • MD5

    1bce2d8534c9ead165a840cc40fdf4c1

  • SHA1

    81edd1351bed6a37e57aeb4f8e100149df0e11fc

  • SHA256

    79927b7246eb40b372a8a83bb8a57d823433905900ea88954a833249a347e861

  • SHA512

    f877c2a5dfffb743624ab95428148f8c2499b34c9ae15a593126d21ffa5078c3d6b742448c6bb57ce590e76a99a794752c6253ea710903483702412e94f26144

  • SSDEEP

    1536:meCQJXNhAriavTPHT41YGuxxzyOYcRZfFKfMFSN9njUmq2MKL/:m/QThcLTHT6qyOYcPdKL9njg2lb

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\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1168
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1232
        • C:\Users\Admin\AppData\Local\Temp\79927b7246eb40b372a8a83bb8a57d823433905900ea88954a833249a347e861.exe
          "C:\Users\Admin\AppData\Local\Temp\79927b7246eb40b372a8a83bb8a57d823433905900ea88954a833249a347e861.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:1600
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1120

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1600-54-0x0000000076461000-0x0000000076463000-memory.dmp

          Filesize

          8KB

        • memory/1600-55-0x0000000001D10000-0x0000000002D9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1600-56-0x00000000746E1000-0x00000000746E3000-memory.dmp

          Filesize

          8KB

        • memory/1600-57-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1600-58-0x0000000001D10000-0x0000000002D9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1600-59-0x0000000002F00000-0x0000000002F02000-memory.dmp

          Filesize

          8KB

        • memory/1600-60-0x0000000004230000-0x0000000004232000-memory.dmp

          Filesize

          8KB

        • memory/1600-61-0x0000000001D10000-0x0000000002D9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1600-62-0x0000000002F00000-0x0000000002F02000-memory.dmp

          Filesize

          8KB

        • memory/1600-63-0x0000000004230000-0x0000000004232000-memory.dmp

          Filesize

          8KB