Overview

overview

10

Static

static

3

WindowsUpdate.exe

windows10-2004-x64

10

WindowsUpdate.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    WindowsUpdate.exe
  • Size 189KB
  • Sample260718-x79sqsd151
  • SHA256 0a3061ce09d7e3cb2b3d3453432da69ee83b59b782853d1f6462fd177db75a7a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoorpersistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 103.119.3.160:6666

  • 127.0.0.1:80

Attributes
  • campaign_date

    2026. 7.15

Targets

    • Target
      WindowsUpdate.exe
    • Size 189KB
    • SHA256 0a3061ce09d7e3cb2b3d3453432da69ee83b59b782853d1f6462fd177db75a7a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoorvalleyrat_s2persistenceransomware

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Drops startup file

    • 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