Overview

overview

10

Static

static

3

c12d77632e...d2.exe

windows10-2004-x64

10

c12d77632e...d2.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    c12d77632e866674ba6eba2316485846d4ab42fb4e5bc53369e8ff80a09fc2d2
  • Size 3.7MB
  • Sample260808-ylb51scq81
  • SHA256 c12d77632e866674ba6eba2316485846d4ab42fb4e5bc53369e8ff80a09fc2d2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoverypersistenceupx

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • cc.92lu1.cc:1588

  • cc.92lu1.cc:2588

  • cc.92lu1.cc:5288

Attributes
  • campaign_date

    2026. 4.24

Targets

    • Target
      c12d77632e866674ba6eba2316485846d4ab42fb4e5bc53369e8ff80a09fc2d2
    • Size 3.7MB
    • SHA256 c12d77632e866674ba6eba2316485846d4ab42fb4e5bc53369e8ff80a09fc2d2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryvalleyrat_s2persistenceupx

    • Detects ValleyRAT payload

    • 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

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks