Extracted

• • Target
    https://cdn.discordapp.com/attachments/1517911908148056189/1517913135514910891/velora.rar?ex=6a380244&is=6a36b0c4&hm=b88f04fbaa1ad2d7f2adf2048112007842195180b0071517b7658293d4a58b4e&

  Score

  10^/10

  adwaredefense_evasiondiscoveryexecutionquasarpersistenceprivilege_escalationransomwarespywarestealertrojan

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar payload

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Modifies RDP port number used by Windows

  • Patched UPX-packed file

    Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

  • Sets service image path in registry

    This determines the executable launched when a service starts. It can be used to establish persistence.

    persistence

  • 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.

  • Event Triggered Execution: Component Object Model Hijacking

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Impair Defenses: Safe Mode Boot

    defense_evasion

  • Loads dropped DLL

  • Modifies system executable filetype association

    persistence

  • Reads user/profile data of web browsers

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

    spywarestealer

  • System Binary Proxy Execution: wuauclt

    Abuse Wuauclt to proxy execution of malicious code.

    defense_evasion

  • Checks installed software on the system

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

    discovery

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives

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

  • Network Share Discovery

    Attempt to gather information on host network.

    discovery

  • ConfuserEx .NET packer

    Detects ConfuserEx .NET packer.

  • Drops file in System32 directory

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1