Overview

overview

10

Static

static

3

e43f17c314...st.dll

windows10-2004-x64

8

e43f17c314...st.dll

windows11-21h2-x64

10

Sharing

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General

  • Target
    e43f17c314b55fd5cb523284ee2f132942c9a4dc28e917acd67c16901135586e_nethost.dll.exe
  • Size 103KB
  • Sample260420-2nekpsex9m
  • SHA256 e43f17c314b55fd5cb523284ee2f132942c9a4dc28e917acd67c16901135586e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04persistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 127.0.0.1:4782

Mutex

  • 5f34ccca-3055-4fc6-8717-ab2a8e0bc218

Attributes
  • encryption_key

    9BD5BFB930BF97834590CB0E737FF24D6F422857

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      e43f17c314b55fd5cb523284ee2f132942c9a4dc28e917acd67c16901135586e_nethost.dll.exe
    • Size 103KB
    • SHA256 e43f17c314b55fd5cb523284ee2f132942c9a4dc28e917acd67c16901135586e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    persistenceoffice04quasarspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks