General

  • Target
    Open_to_view_3613.iso
  • Size 284KB
  • Sample261020-getcaavy9l
  • SHA256 1f6466a3d23b93a21970a3b8964b353aab420eaccaacf2e8b1c210e431a92309
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 47.243.109.132:5252

Attributes
  • campaign_date

    20261019

Targets

    • Target
      Open_to_view.exe
    • Size 25KB
    • SHA256 de0b9b6656c9e9fc9db4271610a09c2ae27d07c5a4757e94b2e0314a9dda6ee4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Enumerates connected drives

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

    • Target
      winhttp.dll
    • Size 208KB
    • SHA256 14e261553c4dba16c53a50b6f1409858f7a897d1c2314e94d222273527452e34
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks