Overview

overview

10

Static

static

3

C5940ABAE3...54.exe

windows10-2004-x64

10

C5940ABAE3...54.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    C5940ABAE3FB2C368F0841417C9B0454.exe
  • Size 7.7MB
  • Sample260804-1mrm7s1djb
  • SHA256 8de2d51797f113896007d6ed8c634d99f5cee4c34c2bf55b1e4c19432afcbab3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoverypersistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 118.107.9.185:1112

  • 118.107.9.185:1113

  • 127.0.0.1:80

Attributes
  • campaign_date

    2026. 7. 6

Targets

    • Target
      C5940ABAE3FB2C368F0841417C9B0454.exe
    • Size 7.7MB
    • SHA256 8de2d51797f113896007d6ed8c634d99f5cee4c34c2bf55b1e4c19432afcbab3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryvalleyrat_s2persistenceransomware

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks