Overview

overview

10

Static

static

10

quasar_clean.exe

windows7-x64

10

quasar_clean.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    quasar_clean.exe

  • Size

    376KB

  • Sample

    221110-ll2pfsafaj

  • MD5

    1e9ac0b5547b0fa980e4ee8529677be5

  • SHA1

    c25c80b4325218cd8e4f4ca11e404293829963f2

  • SHA256

    191e85b65efedab77e67bdaa3a4aad1915f0fa991c1858b359d8a92c679206a8

  • SHA512

    e86c50705690191ab37f84d9c9675e8c820d9dee9bc9b54dba689c0bcfe9a55d8faf0ade793c01eaa5a66a60741e4794d884d9f140126a58f0388faaa9c85ec5

  • SSDEEP

    6144:B8NHXf500M+4EFC4KQk7lKxbvY67CACSerymKtwe:6d50yAQlbCjSerymmwe

Score
10/10
quasartopspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

top

C2

dnuocc.com:64594

www.dnuocc.com:64594
Mutex

QSR_MUTEX_NKzsG6279pND1MmPDw

Attributes
  • encryption_key

    6c7zzdS2IXrGaCb9wrMU

  • install_name

    tors.exe

  • log_directory

    Logs

  • reconnect_delay

    5000

  • startup_key

    tdm

  • subdirectory

    tilk

Targets

    • Target

      quasar_clean.exe

    • Size

      376KB

    • MD5

      1e9ac0b5547b0fa980e4ee8529677be5

    • SHA1

      c25c80b4325218cd8e4f4ca11e404293829963f2

    • SHA256

      191e85b65efedab77e67bdaa3a4aad1915f0fa991c1858b359d8a92c679206a8

    • SHA512

      e86c50705690191ab37f84d9c9675e8c820d9dee9bc9b54dba689c0bcfe9a55d8faf0ade793c01eaa5a66a60741e4794d884d9f140126a58f0388faaa9c85ec5

    • SSDEEP

      6144:B8NHXf500M+4EFC4KQk7lKxbvY67CACSerymKtwe:6d50yAQlbCjSerymmwe

    Score
    10/10
    quasartopspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks