Overview

overview

10

Static

static

10

84e33e3232...a7.exe

windows7-x64

10

84e33e3232...a7.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    84e33e3232dc792f6333dd8ebfbcab0f4c75bf3593d58a57e424fc30e84759a7
  • Size 502KB
  • Sample240727-xsmpnatdmk
  • SHA256 84e33e3232dc792f6333dd8ebfbcab0f4c75bf3593d58a57e424fc30e84759a7
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • me:4782

  • 68.201.205.56:4782

Mutex

  • 4e19accb-bc80-45aa-917d-d5dca33ad8f0

Attributes
  • encryption_key

    3B611D04AAFAB02940B8BD5BC8618AF575293F55

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    2996

  • startup_key

    system

  • subdirectory

    SubDir

Targets

    • Target
      84e33e3232dc792f6333dd8ebfbcab0f4c75bf3593d58a57e424fc30e84759a7
    • Size 502KB
    • SHA256 84e33e3232dc792f6333dd8ebfbcab0f4c75bf3593d58a57e424fc30e84759a7
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • 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