Extracted

• • Target

    Update.exe

  • Size

    20.4MB

  • MD5

    88246c2a001042481486e559a6d10d91

  • SHA1

    e64a646ba23b7795ec3dfb5ae4d80b02c7dd274f

  • SHA256

    4a424271b9a191afc76110e2bccd45f23cc281853f223d3e27756e16c14b5019

  • SHA512

    f3daab1877324bc8ac1f52bc9d1c7327230840fc53899aed47b69dd6b7e996cf3fde70c7efe209fa6fb9d80d58687abbd2f144a66e26de17b99b539d20f6e5ad

  • SSDEEP

    393216:XlHpZSFSVTVyVSJXSUEJRnpyQnXUWJjv0xamVNA3guo9N:9p0FmyVSNSUE7npyQnkWJjv0DV23o

  Score

  10^/10

  quasaremmassubdiscoveryexecutionpyinstallerspywarestealertrojan

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar payload

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Checks computer location settings

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

  • Drops startup file

  • Executes dropped EXE

  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

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

  • Drops file in System32 directory

  behavioral1behavioral2