General

  • Target

    97e34ef135f5b5c122541d0fe4f959e92a79ff8e7dd79599d7de830ad77bbe02

  • Size

    2.0MB

  • Sample

    240324-2qf7bacf4v

  • MD5

    a1e2b28f9874b18d23a375b6156f8d5c

  • SHA1

    3923c1bb561d8fb782e293aa5e00e6bd0f2bd3cf

  • SHA256

    97e34ef135f5b5c122541d0fe4f959e92a79ff8e7dd79599d7de830ad77bbe02

  • SHA512

    308aeb12ef6b4f3f5507dfd935f72558414727113d063ca12fafc123d7426ad24341af43e11bc9f6ec3061ed949cf72a9bad2d5baf457f6e484c01f86c834eaf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYm:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YY

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

      97e34ef135f5b5c122541d0fe4f959e92a79ff8e7dd79599d7de830ad77bbe02

    • Size

      2.0MB

    • MD5

      a1e2b28f9874b18d23a375b6156f8d5c

    • SHA1

      3923c1bb561d8fb782e293aa5e00e6bd0f2bd3cf

    • SHA256

      97e34ef135f5b5c122541d0fe4f959e92a79ff8e7dd79599d7de830ad77bbe02

    • SHA512

      308aeb12ef6b4f3f5507dfd935f72558414727113d063ca12fafc123d7426ad24341af43e11bc9f6ec3061ed949cf72a9bad2d5baf457f6e484c01f86c834eaf

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYm:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YY

    • 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.

    • Maps connected drives based on registry

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

2
T1120

Remote System Discovery

1
T1018

Tasks