Analysis

  • max time kernel
    148s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 11:45

General

  • Target

    6aa78ab5f2e4a3f8be5224a7dc5259253ffef7818f8d364ee44db7f091b4146e.exe

  • Size

    348KB

  • MD5

    a018377667127f5dea55bc36d71becec

  • SHA1

    c7a4dca5efbb71387bd77297b935cd1dfb4c14cb

  • SHA256

    6aa78ab5f2e4a3f8be5224a7dc5259253ffef7818f8d364ee44db7f091b4146e

  • SHA512

    aaec4366f5bbc06d0b4a91a494cf3689173e505f9f82e809b5209b685e1bf84fa1b480c35d85423070ae3a5e434c917c2573b7dac207e8a055f0057fd9f88b9c

  • SSDEEP

    6144:20SOUUWLdVzJE0KQmwuDsaKByqG0Ogj1+U6wkYwizf+y9J:dSOXW7zrKQvuXb21+gZj+u

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 5 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 24 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 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:1192
      • C:\Users\Admin\AppData\Local\Temp\6aa78ab5f2e4a3f8be5224a7dc5259253ffef7818f8d364ee44db7f091b4146e.exe
        "C:\Users\Admin\AppData\Local\Temp\6aa78ab5f2e4a3f8be5224a7dc5259253ffef7818f8d364ee44db7f091b4146e.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:944
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1084

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/944-54-0x0000000000400000-0x00000000004B6000-memory.dmp

          Filesize

          728KB

        • memory/944-55-0x0000000075C61000-0x0000000075C63000-memory.dmp

          Filesize

          8KB

        • memory/944-56-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/944-57-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/944-58-0x00000000001C0000-0x00000000001C2000-memory.dmp

          Filesize

          8KB

        • memory/944-59-0x0000000000400000-0x00000000004B6000-memory.dmp

          Filesize

          728KB

        • memory/944-60-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/944-61-0x00000000001C0000-0x00000000001C2000-memory.dmp

          Filesize

          8KB