General

  • Target

    9eab649219e56ab1e4d7c9a07110543ea464f2ff62f70d570fa6bf78bb83b743

  • Size

    10.0MB

  • Sample

    231111-ddvxyafh4x

  • MD5

    b2becaa35ad19a259fcd4d5a4abc6dca

  • SHA1

    ce3d0b768fc5e424edd7c33c54d1027ec8d976af

  • SHA256

    9eab649219e56ab1e4d7c9a07110543ea464f2ff62f70d570fa6bf78bb83b743

  • SHA512

    9be9b1570b2552789a14f305edf8800d90770741d4afeee5ba8d985642ec9f5f2e863310376e1b126240e091316b5840011f73f5e17d35df2aabc58795930672

  • SSDEEP

    6144:NDyTOYKRRp1znRK5HNfcGJAGyDqYcxWIXXO8MAH43IoGDEVng:xyqYCR/RI1JUsxx3QIojn

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

statics.kozow.com:4782

Mutex

unS22qrSdQNffnzBzy

Attributes
  • encryption_key

    csMSDPXELGapdezEwCQY

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Targets

    • Target

      9eab649219e56ab1e4d7c9a07110543ea464f2ff62f70d570fa6bf78bb83b743

    • Size

      10.0MB

    • MD5

      b2becaa35ad19a259fcd4d5a4abc6dca

    • SHA1

      ce3d0b768fc5e424edd7c33c54d1027ec8d976af

    • SHA256

      9eab649219e56ab1e4d7c9a07110543ea464f2ff62f70d570fa6bf78bb83b743

    • SHA512

      9be9b1570b2552789a14f305edf8800d90770741d4afeee5ba8d985642ec9f5f2e863310376e1b126240e091316b5840011f73f5e17d35df2aabc58795930672

    • SSDEEP

      6144:NDyTOYKRRp1znRK5HNfcGJAGyDqYcxWIXXO8MAH43IoGDEVng:xyqYCR/RI1JUsxx3QIojn

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Uses the VBS compiler for execution

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks