Analysis

  • max time kernel
    150s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 07:04

General

  • Target

    cdb04135df815337df94a8a9b1678e5bdf73d0e2448b584a567048e9ccd26bdb.exe

  • Size

    100KB

  • MD5

    7edefb34c0827bbe3733e8f4720310ca

  • SHA1

    6d4a6043cf18b8d3ffc56ddfd9d87d106929f75c

  • SHA256

    cdb04135df815337df94a8a9b1678e5bdf73d0e2448b584a567048e9ccd26bdb

  • SHA512

    206c6115cb13d54132681024196caf55b529fb250a9831063c11e7e2fad9f3871f5b32ab6579275981bea35d85d4cd36dd52a13cdef714c3467fc9f8ba1c85f9

  • SSDEEP

    1536:ZrrAchzCF+56tvEy//5EsA4GXp7YlhUS9uILr597lfDDXjI6k41h1qaAkw:ZAmH6bes3GdKh8IL9RJXjIOhkaAk

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:1268
      • C:\Users\Admin\AppData\Local\Temp\cdb04135df815337df94a8a9b1678e5bdf73d0e2448b584a567048e9ccd26bdb.exe
        "C:\Users\Admin\AppData\Local\Temp\cdb04135df815337df94a8a9b1678e5bdf73d0e2448b584a567048e9ccd26bdb.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:964
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1128

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/964-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

          Filesize

          8KB

        • memory/964-55-0x0000000001CD0000-0x0000000002D5E000-memory.dmp

          Filesize

          16.6MB

        • memory/964-56-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/964-57-0x0000000001CD0000-0x0000000002D5E000-memory.dmp

          Filesize

          16.6MB

        • memory/964-58-0x0000000002DC0000-0x0000000002DC2000-memory.dmp

          Filesize

          8KB

        • memory/964-59-0x0000000073F51000-0x0000000073F53000-memory.dmp

          Filesize

          8KB

        • memory/964-60-0x00000000043D0000-0x00000000043D2000-memory.dmp

          Filesize

          8KB

        • memory/964-61-0x0000000001CD0000-0x0000000002D5E000-memory.dmp

          Filesize

          16.6MB

        • memory/964-62-0x0000000002DC0000-0x0000000002DC2000-memory.dmp

          Filesize

          8KB

        • memory/964-63-0x00000000043D0000-0x00000000043D2000-memory.dmp

          Filesize

          8KB

        • memory/964-64-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB