Analysis

  • max time kernel
    150s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 21:13

General

  • Target

    f3a2f83156425d1d47f9f55a83650a781facd57a2ed7b9516689c171e886609a.exe

  • Size

    100KB

  • MD5

    33879ea0ef5c0f7939aaff73646b29dc

  • SHA1

    ba941ec2dfb901f96923d5951ac6e4d5f4a125a7

  • SHA256

    f3a2f83156425d1d47f9f55a83650a781facd57a2ed7b9516689c171e886609a

  • SHA512

    1cfb04b99fcb0efc12bc342f1786a9da46cf4f6a59286e73d885ee474b333d4a06313b4f417ca5413364bc9f008eb88b2c96923d4e263831c9faa662df65f3de

  • SSDEEP

    1536:CAWk7jrsnoXvtt1pQSPzEC7vBU2C1FEHSaliwusG9OscneJeaVZTMyxS89AcMjN6:vtQEv7wQzchTEHSaIZneeJea3JhAzj

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 2 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\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1312
      • C:\Users\Admin\AppData\Local\Temp\f3a2f83156425d1d47f9f55a83650a781facd57a2ed7b9516689c171e886609a.exe
        "C:\Users\Admin\AppData\Local\Temp\f3a2f83156425d1d47f9f55a83650a781facd57a2ed7b9516689c171e886609a.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:1812
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1256
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1140

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1812-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

          Filesize

          8KB

        • memory/1812-56-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1812-55-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1812-57-0x0000000074431000-0x0000000074433000-memory.dmp

          Filesize

          8KB

        • memory/1812-58-0x0000000000350000-0x0000000000352000-memory.dmp

          Filesize

          8KB

        • memory/1812-59-0x0000000003D90000-0x0000000003D92000-memory.dmp

          Filesize

          8KB

        • memory/1812-60-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1812-61-0x0000000000350000-0x0000000000352000-memory.dmp

          Filesize

          8KB

        • memory/1812-62-0x0000000003D90000-0x0000000003D92000-memory.dmp

          Filesize

          8KB

        • memory/1812-63-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB