Analysis

  • max time kernel
    148s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2022, 16:42

General

  • Target

    b8b3c2265d4ea572436d0fbc97fb58d8f63ce15c7a9e00548908252a4a524191.exe

  • Size

    100KB

  • MD5

    7a7c081471f7680d05540f823e1fc256

  • SHA1

    91100d5aaf58c2757d35d611bb9c3dbbd9cd3644

  • SHA256

    b8b3c2265d4ea572436d0fbc97fb58d8f63ce15c7a9e00548908252a4a524191

  • SHA512

    d68edd439a0307f82ad416a9683715b1177922cb55ae5ca4a052863da8d63f7f864f506bcb68b12d03f89cc621748ae49d7e829dcfba717e8a50aeb21ceb6a1c

  • SSDEEP

    3072:N9EoZczdgQ5QiI8IcT3reftz8MOsEwAGDp:F6hgHzaCNEwAEp

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\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\b8b3c2265d4ea572436d0fbc97fb58d8f63ce15c7a9e00548908252a4a524191.exe
        "C:\Users\Admin\AppData\Local\Temp\b8b3c2265d4ea572436d0fbc97fb58d8f63ce15c7a9e00548908252a4a524191.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:1964
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1176
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1108

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/1964-54-0x0000000076411000-0x0000000076413000-memory.dmp

                Filesize

                8KB

              • memory/1964-55-0x0000000001DF0000-0x0000000002E7E000-memory.dmp

                Filesize

                16.6MB

              • memory/1964-56-0x0000000074921000-0x0000000074923000-memory.dmp

                Filesize

                8KB

              • memory/1964-57-0x0000000000400000-0x0000000000413000-memory.dmp

                Filesize

                76KB

              • memory/1964-59-0x0000000000250000-0x0000000000252000-memory.dmp

                Filesize

                8KB

              • memory/1964-58-0x0000000001DF0000-0x0000000002E7E000-memory.dmp

                Filesize

                16.6MB

              • memory/1964-60-0x0000000004010000-0x0000000004012000-memory.dmp

                Filesize

                8KB

              • memory/1964-61-0x0000000001DF0000-0x0000000002E7E000-memory.dmp

                Filesize

                16.6MB

              • memory/1964-62-0x0000000000250000-0x0000000000252000-memory.dmp

                Filesize

                8KB

              • memory/1964-63-0x0000000004010000-0x0000000004012000-memory.dmp

                Filesize

                8KB