Overview

overview

10

Static

static

3

f4c5d60c27...0f.exe

windows10-2004-x64

10

f4c5d60c27...0f.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    f4c5d60c27d9cb4a45574151e9bc57786a044f44d990f.exe
  • Size 761KB
  • Sample260301-s92spaav3a
  • SHA256 f4c5d60c27d9cb4a45574151e9bc57786a044f44d990f92ea3930fe980d62650
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscovery

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 111.170.36.160:8585

Attributes
  • campaign_date

    2026. 3. 1

Targets

    • Target
      f4c5d60c27d9cb4a45574151e9bc57786a044f44d990f.exe
    • Size 761KB
    • SHA256 f4c5d60c27d9cb4a45574151e9bc57786a044f44d990f92ea3930fe980d62650
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryvalleyrat_s2

    • Detects ValleyRAT payload

    • ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Valleyrat_s2 family

      valleyrat_s2

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks