Overview

overview

10

Static

static

10

f8fb11582d...d7.exe

windows7-x64

10

f8fb11582d...d7.exe

windows10-2004-x64

10

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General

  • Target

    f8fb11582d89eceb099be971266172a0bc9033d350d5343f09436063adfb3ad7

  • Size

    3.2MB

  • Sample

    240701-ffb9qawhke

  • MD5

    e9ed2adca7e63a58d0895179fc1e121f

  • SHA1

    ae23767acd8d4a88b7c69d84e4df5f9733653662

  • SHA256

    f8fb11582d89eceb099be971266172a0bc9033d350d5343f09436063adfb3ad7

  • SHA512

    7fc5de0e2d85c85592ff935faa5ffa10e33615c8b2d274d28c322764706c2847ee40a9f15c3867cf278981fe2ac3778cbb9b3bd400f6c4064691f9c7c9ff51b0

  • SSDEEP

    98304:visDo5sRzG+RVgbtHSB2MqlcY+kd4204+N1o:6uRq+8btHSdA/N

Score
10/10
quasarstereospywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Stereo

C2

nickhill112-30910.portmap.host:30910

Mutex

c93b672f-8b8c-48b8-a712-e952d64b741a

Attributes
  • encryption_key

    985DB7D034DB1B5D52F524873569DDDE4080F31C

  • install_name

    Stereo.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    update.exe

  • subdirectory

    SubDir

Targets

    • Target

      f8fb11582d89eceb099be971266172a0bc9033d350d5343f09436063adfb3ad7

    • Size

      3.2MB

    • MD5

      e9ed2adca7e63a58d0895179fc1e121f

    • SHA1

      ae23767acd8d4a88b7c69d84e4df5f9733653662

    • SHA256

      f8fb11582d89eceb099be971266172a0bc9033d350d5343f09436063adfb3ad7

    • SHA512

      7fc5de0e2d85c85592ff935faa5ffa10e33615c8b2d274d28c322764706c2847ee40a9f15c3867cf278981fe2ac3778cbb9b3bd400f6c4064691f9c7c9ff51b0

    • SSDEEP

      98304:visDo5sRzG+RVgbtHSB2MqlcY+kd4204+N1o:6uRq+8btHSdA/N

    Score
    10/10
    quasarstereospywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Detects .NET executables utilizing NyanX-CAT C# Loader

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables containing common artifacts observed in infostealers

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks