General

  • Target

    d150ea9bf845e2c25ae555cba7d830ffa58d3abf0a1abe901a32cbbfe3f3065e

  • Size

    1.4MB

  • Sample

    230801-dbdwmsdh8x

  • MD5

    0a6f7249346aebb27c958010749a44ef

  • SHA1

    d36f6b1a6e3f03e29f2f7fd18e56602506ba3ffd

  • SHA256

    d150ea9bf845e2c25ae555cba7d830ffa58d3abf0a1abe901a32cbbfe3f3065e

  • SHA512

    0b09332ef60465463f5ed4df66be3849f8ba92e1763c80f388260fb7a72d4bb325a43fadb7b17715d628f7bcaaf62cbe02997b63e48738415d246b3cf2e06feb

  • SSDEEP

    24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

-

C2

94.131.105.161:12344

Mutex

QSR_MUTEX_UEgITWnMKnRP3EZFzK

Attributes
  • encryption_key

    5Q0JQBQQfAUHRJTcAIOF

  • install_name

    lient.exe

  • log_directory

    Lugs

  • reconnect_delay

    3000

  • startup_key

    itartup

  • subdirectory

    SubDir

Targets

    • Target

      d150ea9bf845e2c25ae555cba7d830ffa58d3abf0a1abe901a32cbbfe3f3065e

    • Size

      1.4MB

    • MD5

      0a6f7249346aebb27c958010749a44ef

    • SHA1

      d36f6b1a6e3f03e29f2f7fd18e56602506ba3ffd

    • SHA256

      d150ea9bf845e2c25ae555cba7d830ffa58d3abf0a1abe901a32cbbfe3f3065e

    • SHA512

      0b09332ef60465463f5ed4df66be3849f8ba92e1763c80f388260fb7a72d4bb325a43fadb7b17715d628f7bcaaf62cbe02997b63e48738415d246b3cf2e06feb

    • SSDEEP

      24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Modifies Windows Firewall

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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