General

  • Target

    31a5c6e4af6f78db5f2d99e74e872cb0N.exe

  • Size

    2.0MB

  • Sample

    240805-b5fk8atbnl

  • MD5

    31a5c6e4af6f78db5f2d99e74e872cb0

  • SHA1

    f82ea16ccc03b7c2c14803ff6ec7caab74b7519a

  • SHA256

    785df35e44aea8976f227beb11419ba7d6342222689d210e19ea2fd6c9e8638d

  • SHA512

    32a028a17000d195ad36b808abf70f519ac4d3f1a7ae6154109d1f9f76ae939bbb46fe7583968e2fe47e019c6efef29f59c261316632ecd560d274edf29e6ba7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYa:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

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

      31a5c6e4af6f78db5f2d99e74e872cb0N.exe

    • Size

      2.0MB

    • MD5

      31a5c6e4af6f78db5f2d99e74e872cb0

    • SHA1

      f82ea16ccc03b7c2c14803ff6ec7caab74b7519a

    • SHA256

      785df35e44aea8976f227beb11419ba7d6342222689d210e19ea2fd6c9e8638d

    • SHA512

      32a028a17000d195ad36b808abf70f519ac4d3f1a7ae6154109d1f9f76ae939bbb46fe7583968e2fe47e019c6efef29f59c261316632ecd560d274edf29e6ba7

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYa:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks