Extracted

• • Target

    Bootstrapper.exe

  • Size

    113KB

  • MD5

    7cf417d06a24c1ade73ec6d8ae589077

  • SHA1

    128516790f9c6d8ac1d33a9f1f2b854162d94942

  • SHA256

    270723a06c0f917204923693f09cc0d6cd2cc9cefd59fc051cfbf920d26f17d8

  • SHA512

    3f5615b04489cfc755e19efc30fe619026dfacd250bb1c1677e1c55ceb6f69a80d0f05760c157696985e1090c34e8e403b453e5680fb981f274bdd66e2fcb5bb

  • SSDEEP

    3072:RSb0MKWY3tfR2y+/ESH7V3wy3OcpN4LBzl:44JWGJ+/ESx3wy+c34LBZ

  Score

  10^/10

  dcratorcusrobloxdiscoveryexecutioninfostealerratspywarestealerdefense_evasionevasionpersistenceprivilege_escalationtrojan

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    ratinfostealerdcrat

  • Dcrat family

    dcrat

  • Modifies WinLogon for persistence

    persistence

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

    ratspywarestealerorcus

  • Orcus family

    orcus

  • Orcus main payload

  • Process spawned unexpected child process

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass

    evasiontrojan

  • DCRat payload

    rat

  • Orcurs Rat Executable

  • 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

  • Windows security modification

    evasiontrojan

  • Adds Run key to start application

    persistence

  • Checks whether UAC is enabled

    evasiontrojan

  • Hijack Execution Flow: Executable Installer File Permissions Weakness

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation

  • Legitimate hosting services abused for malware hosting/C2

  • Drops file in System32 directory

  behavioral1behavioral2