General

  • Target

    384493a5d11e93ca58743e4a7333e16498db0a1449e34a92bcdccda6e296f69e

  • Size

    1.4MB

  • Sample

    230801-zvlaqacc41

  • MD5

    2391ed16534f2109fef4fe65cb953a17

  • SHA1

    b4ddc45af22e9ab6c62ef4866d80cd289b0eab78

  • SHA256

    384493a5d11e93ca58743e4a7333e16498db0a1449e34a92bcdccda6e296f69e

  • SHA512

    19c99ee0af2161c05d79330efe6129a5c8aefab22cae329d41d8500a17329ad047ba8273a3149c69ee8fe1eba2b03672ca3e0fc8fb1652fc2cb6c255921afa36

  • 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

      384493a5d11e93ca58743e4a7333e16498db0a1449e34a92bcdccda6e296f69e

    • Size

      1.4MB

    • MD5

      2391ed16534f2109fef4fe65cb953a17

    • SHA1

      b4ddc45af22e9ab6c62ef4866d80cd289b0eab78

    • SHA256

      384493a5d11e93ca58743e4a7333e16498db0a1449e34a92bcdccda6e296f69e

    • SHA512

      19c99ee0af2161c05d79330efe6129a5c8aefab22cae329d41d8500a17329ad047ba8273a3149c69ee8fe1eba2b03672ca3e0fc8fb1652fc2cb6c255921afa36

    • 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.

    • 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