General

  • Target

    Client-built.exe

  • Size

    348KB

  • Sample

    241221-yfk6qsxpfz

  • MD5

    492eb44f539caa20141bd7d84783d821

  • SHA1

    6586778be19a5a4caf0e29b61cace38467ba7367

  • SHA256

    44f270569724153f8cc32905397c86d5b37285b34b1ee0df31cd195b2fa4c74a

  • SHA512

    a9e2528e54328cade71762185b221699e32b6c4f48c53562bfe950ee704395d399fdd757b4edb496bfb1b8694c69f6da153ce797c58dd9579d5774a86aed7a8f

  • SSDEEP

    6144:xI6bPXhLApfp9CpZPBbinJjNKOOlr7H7PAGm:GmhApUZgnJIvH7PAGm

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Meedo

C2

2.tcp.eu.ngrok.io:8080

Mutex

QSR_MUTEX_NQUsVoNfuuCMRLITRA

Attributes
  • encryption_key

    stf5wT9i1WRQevpAlPN0

  • install_name

    win.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Runtime

  • subdirectory

    Subdir

Targets

    • Target

      Client-built.exe

    • Size

      348KB

    • MD5

      492eb44f539caa20141bd7d84783d821

    • SHA1

      6586778be19a5a4caf0e29b61cace38467ba7367

    • SHA256

      44f270569724153f8cc32905397c86d5b37285b34b1ee0df31cd195b2fa4c74a

    • SHA512

      a9e2528e54328cade71762185b221699e32b6c4f48c53562bfe950ee704395d399fdd757b4edb496bfb1b8694c69f6da153ce797c58dd9579d5774a86aed7a8f

    • SSDEEP

      6144:xI6bPXhLApfp9CpZPBbinJjNKOOlr7H7PAGm:GmhApUZgnJIvH7PAGm

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks