General

  • Target
    WindowsSecurityHealth.exe
  • Size 89.0MB
  • Sample261011-2ctv9aab32
  • SHA256 8246d5bdc55b7a427c331d80dfc0521820a9fbc0f40e88e6d2e793a8c3f0370b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      WindowsSecurityHealth.exe
    • Size 89.0MB
    • SHA256 8246d5bdc55b7a427c331d80dfc0521820a9fbc0f40e88e6d2e793a8c3f0370b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Clears Windows event logs

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (2209) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Executes a file named after a Windows system binary

      The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks