Overview

overview

10

Static

static

3

F89A414276...E2.exe

windows10-2004-x64

10

F89A414276...E2.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    F89A414276E136A36BDA7952CA8F6BE2.exe
  • Size 692KB
  • Sample260911-gfxfbsstft
  • SHA256 aff88ff4d9ea55fdab0b75966cdf8eea13c3d511e0d00df29f9f57768db193e3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoveryexecutionpersistence

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 134.122.155.220:443

  • 134.122.155.220:80

Targets

    • Target
      F89A414276E136A36BDA7952CA8F6BE2.exe
    • Size 692KB
    • SHA256 aff88ff4d9ea55fdab0b75966cdf8eea13c3d511e0d00df29f9f57768db193e3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryexecutionvalleyrat_s2persistence

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks