Overview

overview

10

Static

static

3

bfff6225f4...79.exe

windows10-2004-x64

10

bfff6225f4...79.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    bfff6225f4fbbf9e36322240185935d0321763893c579.exe
  • Size 2.4MB
  • Sample260411-ndc28sds2n
  • SHA256 bfff6225f4fbbf9e36322240185935d0321763893c579f4e77b6efa520d5ab31
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoveryinstaller

Malware Config

Targets

    • Target
      bfff6225f4fbbf9e36322240185935d0321763893c579.exe
    • Size 2.4MB
    • SHA256 bfff6225f4fbbf9e36322240185935d0321763893c579f4e77b6efa520d5ab31
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryvalleyrat_s2installer

    • 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

    • 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