Overview

overview

10

Static

static

3

f92b.pdf.exe

windows10-2004-x64

10

f92b.pdf.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    f92b.pdf.exe
  • Size 8.7MB
  • Sample260702-psby6aas71
  • SHA256 ca66840e7c8c30a572c0489618a57d25474039bc0b44b0955ca4edc9c5d81706
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasiondiscoverypyinstaller

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 192.168.17.143:6666

Attributes
  • campaign_date

    2026. 6.17

Targets

    • Target
      f92b.pdf.exe
    • Size 8.7MB
    • SHA256 ca66840e7c8c30a572c0489618a57d25474039bc0b44b0955ca4edc9c5d81706
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasiondiscoveryvalleyrat_s2pyinstaller

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks