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Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2022, 19:00

General

  • Target

    67d59c61fd40af50f02e1b9fb235c06f20c77bdc8389f07451aec83b2d07bc92.exe

  • Size

    100KB

  • MD5

    0c15de9fc6935fe6bcbf7f828b5825e3

  • SHA1

    0cb647ed10d917917f9d5b53b6f7ba66ca5e161d

  • SHA256

    67d59c61fd40af50f02e1b9fb235c06f20c77bdc8389f07451aec83b2d07bc92

  • SHA512

    f2eef06efdbf8e41f9ffa9c7b3189e0015e4ffc2efef97dbe1fd80bf4e856973e0cbb0d0aadbc83c95b1e5c47bb5f557e179baa72958d6b0a6991dd0fadc54da

  • SSDEEP

    1536:TYnJl23kK+L6bIH9Ut+E5RgV69BEPqsNH7pYGMdUgSzpQADi6pbaUeDe1Yu:exmMH99E5u4gq+HNh2UgSKupbaDy1

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 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:1160
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1284
        • C:\Users\Admin\AppData\Local\Temp\67d59c61fd40af50f02e1b9fb235c06f20c77bdc8389f07451aec83b2d07bc92.exe
          "C:\Users\Admin\AppData\Local\Temp\67d59c61fd40af50f02e1b9fb235c06f20c77bdc8389f07451aec83b2d07bc92.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:1724
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1244

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1724-54-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

          Filesize

          8KB

        • memory/1724-55-0x0000000001CF0000-0x0000000002D7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1724-56-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1724-57-0x0000000001CF0000-0x0000000002D7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1724-58-0x00000000001E0000-0x00000000001E2000-memory.dmp

          Filesize

          8KB

        • memory/1724-59-0x00000000743F1000-0x00000000743F3000-memory.dmp

          Filesize

          8KB

        • memory/1724-60-0x00000000040D0000-0x00000000040D2000-memory.dmp

          Filesize

          8KB

        • memory/1724-61-0x0000000001CF0000-0x0000000002D7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1724-62-0x00000000001E0000-0x00000000001E2000-memory.dmp

          Filesize

          8KB

        • memory/1724-63-0x00000000040D0000-0x00000000040D2000-memory.dmp

          Filesize

          8KB