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
    69d89928219302e291dee12e271f9eb09a22e9a020ad8e87a0af97139fcbb72e
  • Size 282KB
  • Sample260727-ndmxfadn3v
  • SHA256 69d89928219302e291dee12e271f9eb09a22e9a020ad8e87a0af97139fcbb72e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasionpersistenceransomware

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 e4eadaa2b168b0c2cf82e056d4a0ac3f7c18d6559b9349b6035620f51a4b421f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasionvalleyrat_s2persistenceransomware

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Looks for VMWare Tools registry key

      defense_evasion

    • Deletes itself

    • Executes dropped EXE

    • 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