General

  • Target

    3b412a971394882cb2d7be867ab7af20N.exe

  • Size

    2.0MB

  • Sample

    240827-ryvpkavgrc

  • MD5

    3b412a971394882cb2d7be867ab7af20

  • SHA1

    2234683a124d00e68170182b49c510f381252b66

  • SHA256

    c5b5763bad6c7e17bd8a9943267cc5ff022c06a66cb95736bd77b105f84164e1

  • SHA512

    c4ce2cfb0b2adee7ff2aba84d790b621f2de5c02793238a9cae4d90ac5c06eda248d908276477b5e59ebbe5a5183357e1ca24c4d1573d53f1d91aa47712feed4

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYc:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y2

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

      3b412a971394882cb2d7be867ab7af20N.exe

    • Size

      2.0MB

    • MD5

      3b412a971394882cb2d7be867ab7af20

    • SHA1

      2234683a124d00e68170182b49c510f381252b66

    • SHA256

      c5b5763bad6c7e17bd8a9943267cc5ff022c06a66cb95736bd77b105f84164e1

    • SHA512

      c4ce2cfb0b2adee7ff2aba84d790b621f2de5c02793238a9cae4d90ac5c06eda248d908276477b5e59ebbe5a5183357e1ca24c4d1573d53f1d91aa47712feed4

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYc:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y2

    • 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

    • 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