Analysis

  • max time kernel
    147s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2022, 15:07

General

  • Target

    861b2a585a64358ed7dacb9bf8bda6783b24834d05c1bc52fd88550883a8a74f.exe

  • Size

    97KB

  • MD5

    82ae6ec7dea02d132dc70fff576a2047

  • SHA1

    f761aaaae1841c88a3db2b52588552db8e532402

  • SHA256

    861b2a585a64358ed7dacb9bf8bda6783b24834d05c1bc52fd88550883a8a74f

  • SHA512

    8fc978992f0d8a5a0f7aaa7a930d7eaaa1c25d68a5caf821ca9f97b27259a129f9415170debb22382d18930a892013180b6a252c60fce005ed4610df78419574

  • SSDEEP

    1536:NuI1agtde2qMmr9npDE5TfHjJPeNGO1hmIDiyadOFnxZfph/ZtgWWp3wDduwSl:NuI1L7He9wfH9YrmZROF3B0WDdun

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

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 21 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 2 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\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1384
      • C:\Users\Admin\AppData\Local\Temp\861b2a585a64358ed7dacb9bf8bda6783b24834d05c1bc52fd88550883a8a74f.exe
        "C:\Users\Admin\AppData\Local\Temp\861b2a585a64358ed7dacb9bf8bda6783b24834d05c1bc52fd88550883a8a74f.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:1168
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1340
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1256

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1168-54-0x0000000076401000-0x0000000076403000-memory.dmp

          Filesize

          8KB

        • memory/1168-55-0x0000000000690000-0x000000000174A000-memory.dmp

          Filesize

          16.7MB

        • memory/1168-56-0x0000000074E21000-0x0000000074E23000-memory.dmp

          Filesize

          8KB

        • memory/1168-57-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/1168-58-0x0000000000690000-0x000000000174A000-memory.dmp

          Filesize

          16.7MB

        • memory/1168-59-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/1168-60-0x0000000002F90000-0x0000000002F92000-memory.dmp

          Filesize

          8KB

        • memory/1168-61-0x0000000000690000-0x000000000174A000-memory.dmp

          Filesize

          16.7MB

        • memory/1168-62-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/1168-63-0x0000000002F90000-0x0000000002F92000-memory.dmp

          Filesize

          8KB