Overview

overview

10

Static

static

3

Setup.exe$$.exe

windows10-2004-x64

10

Setup.exe$$.exe

windows11-ltsc_2024-x64

8

Sharing

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General

  • Target
    Setup.exe$$.exe
  • Size 27.2MB
  • Sample261102-lnwk8at19l
  • SHA256 fe787eb95026b3e8f6a389f74a2f26e2202b1fada02f603dab173a7d8464d7fd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoveryexecutioninstallerpersistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

C2

  • 192.168.1.200:9999

  • 27.124.4.34:62841

Targets

    • Target
      Setup.exe$$.exe
    • Size 27.2MB
    • SHA256 fe787eb95026b3e8f6a389f74a2f26e2202b1fada02f603dab173a7d8464d7fd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryexecutionvalleyrat_s2installerpersistenceransomware

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks