Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2022 12:08

General

  • Target

    RR.lnk

  • Size

    1KB

  • MD5

    5adfb10fa942ee453862b4adbcfbca6f

  • SHA1

    d76867af1d617b82a6c2c69b43f3bcef5fedcdb2

  • SHA256

    4cdbdd8e0e25072b84b74a3116f532819704a43daf567ef9230d137a11631895

  • SHA512

    c79e0913d046d96cfacfd4bd345d021d9868492d4ee0c9422231daf3fc0c4b8d12fb0bf78bc410cb9c82c8dc1c5e54ff581daef5e7159cfa305d3535d3d16c4c

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\RR.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c sandstone\gold.cmd
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /K sandstone\beeches.cmd system rundl
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Windows\system32\replace.exe
          replace C:\Windows\\system32\\rundlr32.exe C:\Users\Admin\AppData\Local\Temp /A
          4⤵
            PID:1580
          • C:\Windows\system32\rundll32.exe
            rundll32 sandstone\\kilketh.tmp,init
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1672
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 sandstone\\kilketh.tmp,init
              5⤵
                PID:1300

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1204-54-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

        Filesize

        8KB

      • memory/1300-95-0x0000000000000000-mapping.dmp

      • memory/1300-96-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

        Filesize

        8KB

      • memory/1580-93-0x0000000000000000-mapping.dmp

      • memory/1596-90-0x0000000000000000-mapping.dmp

      • memory/1672-94-0x0000000000000000-mapping.dmp

      • memory/1716-88-0x0000000000000000-mapping.dmp