Overview

overview

10

Static

static

3

295f0a57a5...38.exe

windows7-x64

10

295f0a57a5...38.exe

windows10-2004-x64

1

Sharing

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General

  • Target
    295f0a57a5e69b701359a80ed15ab338
  • Size 435KB
  • Sample231231-fsf4faccc2
  • SHA256 d366619e696013333ed98b3aa03567638e56286ded05fb34da197481fa4d89fe
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04persistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • cinyk.duckdns.org:200

Mutex

  • f0588063-425c-49b3-90a0-146445b72227

Attributes
  • encryption_key

    03C79A7567CE54D0A1A215C4304C453535311F0C

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater x64

  • subdirectory

    SubDir

Targets

    • Target
      295f0a57a5e69b701359a80ed15ab338
    • Size 435KB
    • SHA256 d366619e696013333ed98b3aa03567638e56286ded05fb34da197481fa4d89fe
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04persistencespywaretrojan

    • Modifies WinLogon for persistence

      persistence

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks