General

  • Target

    Loli.bat

  • Size

    7.4MB

  • Sample

    241228-3q7jyawkaj

  • MD5

    20babbe64536c2719410804998fccc16

  • SHA1

    a5de1da0c17e0c5c1af57ead6b6a93b5eabe3435

  • SHA256

    a35923aa82a712fcca777db5801a1257c6292bffbd3777eb134dcc0ca512ad2c

  • SHA512

    6cc9f0f414da1456cc20b2405f70ed4bb30eec7c531e5d9cd55f7e103bc6605dbccc622a04d018314052f975b9089012b4f3bccac7dc2e758fc2c14a95fff0ec

  • SSDEEP

    49152:WotsDKeNxZwx4Jh+7kY1XUYy+iCztYsxVopypue/FgFnRdJhtXZNPsgjrSnJZfHu:A

Malware Config

Extracted

Family

quasar

Attributes
  • encryption_key

    03816C045CDE13385E227545D99CA4F0BBE6CC9F

  • reconnect_delay

    3000

Targets

    • Target

      Loli.bat

    • Size

      7.4MB

    • MD5

      20babbe64536c2719410804998fccc16

    • SHA1

      a5de1da0c17e0c5c1af57ead6b6a93b5eabe3435

    • SHA256

      a35923aa82a712fcca777db5801a1257c6292bffbd3777eb134dcc0ca512ad2c

    • SHA512

      6cc9f0f414da1456cc20b2405f70ed4bb30eec7c531e5d9cd55f7e103bc6605dbccc622a04d018314052f975b9089012b4f3bccac7dc2e758fc2c14a95fff0ec

    • SSDEEP

      49152:WotsDKeNxZwx4Jh+7kY1XUYy+iCztYsxVopypue/FgFnRdJhtXZNPsgjrSnJZfHu:A

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks