Overview

overview

10

Static

static

3

285538c27a...13.dll

windows10-2004-x64

10

285538c27a...13.dll

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    285538c27af4a95adc6302486b11fb1feb2e3d6eb829979ce7b3ecddbbbc8f13
  • Size 5.3MB
  • Sample260903-ym477aep6x
  • SHA256 285538c27af4a95adc6302486b11fb1feb2e3d6eb829979ce7b3ecddbbbc8f13
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasiondiscoveryexecutionpersistenceransomware

Malware Config

Targets

    • Target
      285538c27af4a95adc6302486b11fb1feb2e3d6eb829979ce7b3ecddbbbc8f13
    • Size 5.3MB
    • SHA256 285538c27af4a95adc6302486b11fb1feb2e3d6eb829979ce7b3ecddbbbc8f13
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasiondiscoveryexecutionvalleyrat_s2persistenceransomware

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Executes dropped EXE

    • 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

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks