General

  • Target

    3e0ace8760a55d09edfe5624d9998d09d900af4efbee9a29906857f6f5ec6d7b

  • Size

    1.4MB

  • Sample

    230802-aad88sda2s

  • MD5

    16fc693eb7e6d412c8fdf6865ccaa5c7

  • SHA1

    6496e01801446f7db953a910b5d01f2681e0bc9a

  • SHA256

    3e0ace8760a55d09edfe5624d9998d09d900af4efbee9a29906857f6f5ec6d7b

  • SHA512

    3e12039169897801b4279bc3db9aa7e8833532f2bc7c57d3f43f93dc6713dd8af372222e56f841a95af2b5da93f367eaebc8d4fb8afbec4eb99a30e244528255

  • 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

      3e0ace8760a55d09edfe5624d9998d09d900af4efbee9a29906857f6f5ec6d7b

    • Size

      1.4MB

    • MD5

      16fc693eb7e6d412c8fdf6865ccaa5c7

    • SHA1

      6496e01801446f7db953a910b5d01f2681e0bc9a

    • SHA256

      3e0ace8760a55d09edfe5624d9998d09d900af4efbee9a29906857f6f5ec6d7b

    • SHA512

      3e12039169897801b4279bc3db9aa7e8833532f2bc7c57d3f43f93dc6713dd8af372222e56f841a95af2b5da93f367eaebc8d4fb8afbec4eb99a30e244528255

    • 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