Overview

overview

10

Static

static

3

jaffacakes...qf.exe

windows10-2004-x64

10

jaffacakes...qf.exe

windows11-ltsc_2024-x64

3

Sharing

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General

  • Target
    jaffacakes118_Trojan-Spy.MSIL.Quasar.cqf.350f160ae5adad2364ec04d219540fa5
  • Size 592KB
  • Sample261012-j2m5wsttet
  • SHA256 31ecb8557c53be4183355d0988af2454cdc7e00d8927e862cb8cf94928676dd9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04discoverypersistenceprivilege_escalationspywaretrojan

Malware Config

Extracted

Family

  • quasar

Attributes
  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • reconnect_delay

    3000

Extracted

Family

  • quasar

Version

  • 1.3.0.0

Botnet

  • Office04

C2

  • 173.46.85.106:1337

Mutex

  • MUTEX_JLnjodVaJSHjgM2iL6

Attributes
  • encryption_key

    mJdLDzO9WqdmsuByy0Xq

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Hunter's Eye Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      jaffacakes118_Trojan-Spy.MSIL.Quasar.cqf.350f160ae5adad2364ec04d219540fa5
    • Size 592KB
    • SHA256 31ecb8557c53be4183355d0988af2454cdc7e00d8927e862cb8cf94928676dd9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04discoveryquasarpersistenceprivilege_escalationspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Looks up external IP address via web service

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks