General

  • Target

    https://drive.google.com/file/d/19dtPJV6XBEH8ZjCCr3OlGMEzgJOkNogL/view?pli=1

  • Sample

    241006-ptefnsydlh

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

EaseUSTodo

C2

officeworld.freeddns.org:8898

mianoffice221.kozow.com:8898

Mutex

a9a13ab7-c562-46fd-bbd2-326a345c4bf8

Attributes
  • encryption_key

    2EA31F57ED19DE155F86E8C6311EB312416F74DC

  • install_name

    Client.exe

  • log_directory

    CrashLogs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      https://drive.google.com/file/d/19dtPJV6XBEH8ZjCCr3OlGMEzgJOkNogL/view?pli=1

    • Detect ZGRat V2

    • Modifies WinLogon for persistence

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks