General

  • Target

    b4a429673539fe0dc0b04c85e39d5840N

  • Size

    2.0MB

  • Sample

    240825-zhzmksvhqj

  • MD5

    b4a429673539fe0dc0b04c85e39d5840

  • SHA1

    4348979d2cce894bff02db01edc9cd79106dc2a0

  • SHA256

    2917617574cca91abeb83af357a3da52f7252355dab2e1e0fe1da9a0d10e98d6

  • SHA512

    2f1f6a36ed582fdbb6280eb8212609422c20cc5494dc91b6856967ae0afc7003d6d06a452b69029033b0b5f16b0e3e27e31ba1cefd829b42e5f02f29ed7af321

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY0:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

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

      b4a429673539fe0dc0b04c85e39d5840N

    • Size

      2.0MB

    • MD5

      b4a429673539fe0dc0b04c85e39d5840

    • SHA1

      4348979d2cce894bff02db01edc9cd79106dc2a0

    • SHA256

      2917617574cca91abeb83af357a3da52f7252355dab2e1e0fe1da9a0d10e98d6

    • SHA512

      2f1f6a36ed582fdbb6280eb8212609422c20cc5494dc91b6856967ae0afc7003d6d06a452b69029033b0b5f16b0e3e27e31ba1cefd829b42e5f02f29ed7af321

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY0:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

    • 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