General

  • Target

    Loli.bat

  • Size

    3.8MB

  • Sample

    240611-gf456swgnd

  • MD5

    e4889d99388cceea3c907355304aae89

  • SHA1

    eb257905a6b26999c8669b2dfd6514cbb58dbc24

  • SHA256

    212041e0721657d19e29bf71ee058b9b0758adb113440aefac2275eab673440d

  • SHA512

    dd2b2eeec89efbd64c3d38a1d767285bfe0fce5d63c0bd526d1638a4b05c85b77f61023dac7e3c3ea4c5e83673b1c43fbed3c9ab006783c185a6a4374d088a32

  • SSDEEP

    49152:uQY5eZkygGG7xcLoUZvL/eEBeQOoKB5BQD8WChHHdxFh:W

Malware Config

Extracted

Family

quasar

Attributes
  • encryption_key

    E2FB9900B23756E2DDF30B24E44B0961BA7B0F9C

  • reconnect_delay

    3000

Targets

    • Target

      Loli.bat

    • Size

      3.8MB

    • MD5

      e4889d99388cceea3c907355304aae89

    • SHA1

      eb257905a6b26999c8669b2dfd6514cbb58dbc24

    • SHA256

      212041e0721657d19e29bf71ee058b9b0758adb113440aefac2275eab673440d

    • SHA512

      dd2b2eeec89efbd64c3d38a1d767285bfe0fce5d63c0bd526d1638a4b05c85b77f61023dac7e3c3ea4c5e83673b1c43fbed3c9ab006783c185a6a4374d088a32

    • SSDEEP

      49152:uQY5eZkygGG7xcLoUZvL/eEBeQOoKB5BQD8WChHHdxFh:W

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks