Overview

overview

10

Static

static

3

2026-03-31...ar.exe

windows10-2004-x64

10

2026-03-31...ar.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2026-03-31_470136fa8180c101ba402801c474b735_cobalt-strike_glassworm_icedid_luca-stealer_njrat_satacom_vidar
  • Size 20.2MB
  • Sample260331-b4mm5sct3j
  • SHA256 fc1ce0170423c0d51e012ed0ad8d04b72fc2e8665577fbb6effb2805219c0c85
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasiondiscoveryinstaller

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 108.187.43.242:996

  • 108.187.43.242:997

  • 127.0.0.1:80

Attributes
  • campaign_date

    2026. 3. 7

Targets

    • Target
      2026-03-31_470136fa8180c101ba402801c474b735_cobalt-strike_glassworm_icedid_luca-stealer_njrat_satacom_vidar
    • Size 20.2MB
    • SHA256 fc1ce0170423c0d51e012ed0ad8d04b72fc2e8665577fbb6effb2805219c0c85
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasiondiscoveryvalleyrat_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.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks