Overview

overview

10

Static

static

5

Tax disputes.exe

windows10-2004-x64

10

Tax disputes.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Tax disputes.zip
  • Size 336KB
  • Sample260709-srh8macx6p
  • SHA256 cb8754705894144266752620095067af511bf690b2ca06e6eaa756064cae045d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasionpersistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 206.238.196.96:5252

  • 206.238.196.96:80

Attributes
  • campaign_date

    2026. 7. 7

Targets

    • Target
      Tax disputes.exe
    • Size 353KB
    • SHA256 eacd951ae2802c2155324a1d4f6f1671a99e989e89940b46f0a19ff1a42bfd05
    • 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