Overview

overview

10

Static

static

5

红枫叶�....1.exe

windows10-2004-x64

10

红枫叶�....1.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    7813b7a31ac9f251e26156496d61c44b4b14aff5390b8212b050033975395d7c
  • Size 253KB
  • Sample260710-v2ghwsdv7k
  • SHA256 7813b7a31ac9f251e26156496d61c44b4b14aff5390b8212b050033975395d7c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoverypersistenceransomwareupx

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 103.119.3.160:40010

  • 127.0.0.1:8888

  • 127.0.0.1:80

Attributes
  • campaign_date

    2026. 6.21

Targets

    • Target
      红枫叶客户端 V3.1.exe
    • Size 263KB
    • SHA256 69d2c150f0ef77d79f14d0c4e3cc0aa68619aa13b767210afa2d5a4745969783
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryvalleyrat_s2persistenceransomwareupx

    • 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.

    • UPX packed file

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

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks