Extracted

Extracted

• • Target

    vir.exe

  • Size

    36.2MB

  • MD5

    e0668c83cc66ba89747c6d676879745b

  • SHA1

    f55c70e669a3397f17f348f2922d54da8785e51a

  • SHA256

    0d7b33b18e6e288da39aaf22657d4b5894651127b68cc954ea2b00350185c34a

  • SHA512

    4299563811361b9600f6d31491f351ec9d5f897b2af6734021651d0a3b5bf8407b33b5f96ede1ac1d9e738cb9fee161d92ddf2c039230490da2d84a0ad9cb34f

  • SSDEEP

    786432:t4RerlLa3nwEwrkACTe6YQbjGEhM67HXkvj:OulW3wEoA3HUr

  Score

  10^/10

  privateloaderquasarromkabootkitcollectiondiscoveryevasionexecutionloaderpersistencespywarestealerthemidatrojanupx

  • Modifies WinLogon for persistence

    persistence

  • Modifies firewall policy service

    evasion

  • Modifies visibility of file extensions in Explorer

    evasion

  • Modifies visiblity of hidden/system files in Explorer

    evasion

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    loaderprivateloader

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar payload

  • UAC bypass

    evasiontrojan

  • Windows security bypass

    evasiontrojan

  • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    evasion

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Disables RegEdit via registry modification

    evasion

  • Downloads MZ/PE file

  • .NET Reactor proctector

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • 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.

  • Drops startup file

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Reads user/profile data of local email clients

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Themida packer

    Detects Themida, an advanced Windows software protection system.

    themida

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx

  • Windows security modification

    evasiontrojan

  • Accesses Microsoft Outlook profiles

    collection

  • Adds Run key to start application

    persistence

  • 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

    evasiontrojan

  • Drops Chrome extension

  • Drops desktop.ini file(s)

  • Enumerates connected drives

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

  • 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.

  • Modifies WinLogon

    persistence

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • AutoIT Executable

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

  behavioral1