Overview

overview

10

Static

static

5

Install_u7b7.exe

windows10-2004-x64

10

Install_u7b7.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    16953f5961c1a0039d3ae816086e33bd914790251801905803f6ae3f8feb3478
  • Size 282KB
  • Sample260720-ln16psf14y
  • SHA256 16953f5961c1a0039d3ae816086e33bd914790251801905803f6ae3f8feb3478
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasionpersistenceransomwaretrojan

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 47.75.103.130:5252

  • 47.75.103.130:80

Attributes
  • campaign_date

    2026. 7.16

Targets

    • Target
      Install_u7b7.exe
    • Size 348KB
    • SHA256 c3d09daa83fa0a9c2033d4e88240e3ee470e0b5e7480fa417111e39de036d69f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasionvalleyrat_s2persistenceransomwaretrojan

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Windows security bypass

      defense_evasiontrojan

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Looks for VMWare Tools registry key

      defense_evasion

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      defense_evasiontrojan

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks