General

  • Target

    Loli.bat

  • Size

    7.3MB

  • Sample

    241228-krcrvaxjhw

  • MD5

    f016a79ee4efcfe7dfc4b71ecb6f702e

  • SHA1

    b2769efff841a916536bf3e2b3e6eeaf25bf2e60

  • SHA256

    1c217ac7d8a0753006cb2e0173425526240879a5553957f2a9219478157a33c5

  • SHA512

    a8afcbb85c5aa752f632d6aa6f9a712f66974b879f85844d91098422bc9004c13d826ecb17bf0c18254237a8e5158da9e42efbcb817f93b84c2bcf476655abbc

  • SSDEEP

    49152:/SCmrpIWAhX+m0p5PBUBdjemTX6lUXl6YgUkzS9gw0pZOojoPhK7fnFZHSmznCH9:z

Malware Config

Extracted

Family

quasar

Attributes
  • encryption_key

    03816C045CDE13385E227545D99CA4F0BBE6CC9F

  • reconnect_delay

    3000

Targets

    • Target

      Loli.bat

    • Size

      7.3MB

    • MD5

      f016a79ee4efcfe7dfc4b71ecb6f702e

    • SHA1

      b2769efff841a916536bf3e2b3e6eeaf25bf2e60

    • SHA256

      1c217ac7d8a0753006cb2e0173425526240879a5553957f2a9219478157a33c5

    • SHA512

      a8afcbb85c5aa752f632d6aa6f9a712f66974b879f85844d91098422bc9004c13d826ecb17bf0c18254237a8e5158da9e42efbcb817f93b84c2bcf476655abbc

    • SSDEEP

      49152:/SCmrpIWAhX+m0p5PBUBdjemTX6lUXl6YgUkzS9gw0pZOojoPhK7fnFZHSmznCH9:z

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks