General

  • Target

    a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6

  • Size

    2.0MB

  • Sample

    240503-b8cnqsca8w

  • MD5

    4a19e3a1b37267e44d0eb478a766f211

  • SHA1

    28d0bc2dfe3affc380fe0bfdcd668801ddb72719

  • SHA256

    a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6

  • SHA512

    45881f60fd71a2c40738a56c3b9815319234f72cde21e0bdf24b34b669d02e3604bf373ac94a81a3bf270142240c89a86828454813bcb93e8c16759d9f09edca

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYq:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Targets

    • Target

      a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6

    • Size

      2.0MB

    • MD5

      4a19e3a1b37267e44d0eb478a766f211

    • SHA1

      28d0bc2dfe3affc380fe0bfdcd668801ddb72719

    • SHA256

      a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6

    • SHA512

      45881f60fd71a2c40738a56c3b9815319234f72cde21e0bdf24b34b669d02e3604bf373ac94a81a3bf270142240c89a86828454813bcb93e8c16759d9f09edca

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYq:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables containing common artifacts observed in infostealers

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks