Overview

overview

10

Static

static

10

nexusguard...64.exe

windows10-2004-x64

10

nexusguard...64.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    nexusguard-firewall-enterprise-2026.07-full-x64.exe
  • Size 3.1MB
  • Sample260709-r6ptaact9j
  • SHA256 e521863afda5337416c8d66427b1e54437a2d07603a6e491a75d4678252f96b0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarnexusguard firewalldiscoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • NexusGuard Firewall

C2

  • gamefest.gg:4782

  • gamefest.gg/vi-vn/:4782

  • c168.media:4782

  • olympicharyana.in/vi-vn/:4782

  • olympicharyana.in:4782

  • c168b.com:4782

Mutex

  • f0eadb08-af86-4368-b0dd-8c5aa7080499

Attributes
  • encryption_key

    FAA6DCCCB5AA917EA4E50E1D9897AB35BE84AF27

  • install_name

    nexusguard-firewall-enterprise-2026.07-full-x64.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    NexusGuard Firewall

  • subdirectory

    NexusGuard Firewall

Targets

    • Target
      nexusguard-firewall-enterprise-2026.07-full-x64.exe
    • Size 3.1MB
    • SHA256 e521863afda5337416c8d66427b1e54437a2d07603a6e491a75d4678252f96b0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    nexusguard firewalldiscoveryexecutionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks