General

  • Target
    Solara_FIX.exe
  • Size 560KB
  • Sample260517-k187eah16k
  • SHA256 0c71f48d44a74efb798881c84e4ede7906f1342567500558ba7155c12abf090a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Solara_FIX.exe
    • Size 560KB
    • SHA256 0c71f48d44a74efb798881c84e4ede7906f1342567500558ba7155c12abf090a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies WinLogon for persistence

    • Modifies boot configuration data using bcdedit

    • Renames multiple (7606) files with added filename extension

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

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Files and Directories

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks