Overview

overview

10

Static

static

10

04fd43a2fb...1e.exe

windows7-x64

10

04fd43a2fb...1e.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    04fd43a2fbf40610f559b11414d1a71e.bin
  • Size 3.1MB
  • Sample240701-bdbsys1eka
  • SHA256 8f2f7929d4d3d04be498567f02d567521ce4c5e7a1d400c4f64f4c2bd78ddcb9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • pringelsy-41920.portmap.host:41920

Mutex

  • 63621aac-ae17-49da-9413-459827e68061

Attributes
  • encryption_key

    4F2985A1DF21C9CA0E34D9186E1BC62AF4B58C14

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Opera GX

  • subdirectory

    SubDir

Targets

    • Target
      04fd43a2fbf40610f559b11414d1a71e.bin
    • Size 3.1MB
    • SHA256 8f2f7929d4d3d04be498567f02d567521ce4c5e7a1d400c4f64f4c2bd78ddcb9
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks