Malicious PDF / .VIR — malware analysis report

Heuristics 8

• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
  PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
  PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
• PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
  PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
• PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
  PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL http://sitesworlds.com/YXJjc29mdCB0b3RhbG1lZGlhIDMuNSBsaWNlbnNlIGtleWdlbiBjcmFjawYXJ/allowable/bugging/automaker/panettone/&disinfected=ecpi&executive=ZG93bmxvYWR8VmE2Y1dZMGVYeDhNVFkyT0RnM05qazNOWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • http://www.landtitle.info/wp-content/uploads/2022/11/Lolita_Color_Special.pdfIn PDF document text
  • http://www.hacibektasdernegi.com/wp-content/uploads/glehenl.pdfIn PDF document text
  • https://bridgetsdance.com/wp-content/uploads/2022/11/Autodesk_Quantity_Takeoff_2013_64_Bit_Free_Downloa_bakalao_g.pdfIn PDF document text
  • https://southgerian.com/unity-pro-2019-3-3-2020-1-0-crack-new/In PDF document text
  • https://nakvartire.com/wp-content/uploads/2022/11/glorpen.pdfIn PDF document text
  • https://realbeen.com/wp-content/uploads/2022/11/gabetal.pdfIn PDF document text
  • https://eveningandmorningchildcareservices.com/wp-content/uploads/2022/11/express_accounts_express_account_plus_v_466_registration_cod.pdfIn PDF document text
  • https://www.empowordjournalism.com/wp-content/uploads/2022/11/FULL_WINDOWS_7_LOADER_BY_ORBIT30_AND_HAZAR_32BIT_64BIT_V12.pdfIn PDF document text
  • http://prabhatevents.com/freerepack-downloadresettercanonservicetoolv3200/In PDF document text
  • https://malekrealty.org/adobe-photoshop-lightroom-classic-cc-2019-8-1-multi-win/In PDF document text
  • https://www.tresors-perse.com/wp-content/uploads/2022/11/HD_Online_Player_bride_for_rent_full_movie_download_m.pdfIn PDF document text
  • https://jovenesvip.com/wp-content/uploads/2022/11/ThiefUpdatev14RELOADED_Fitgirl_Repack_BETTER.pdfIn PDF document text
  • https://mybigpharmacy.com/wp-content/uploads/2022/11/Organizationandmanagementbyrdagrawalpdf.pdfIn PDF document text
  • https://lavavajillasportatiles.com/ulead-products-keygen-kaizer-soze-core-download-full/In PDF document text
  • https://ayusya.in/pilsner-urquell-game-free-download-for-13-_hot_/In PDF document text
  • https://www.iprofile.it/wp-content/uploads/2022/11/hanpas.pdfIn PDF document text
  • https://spiruproject.site/wp-content/uploads/2022/11/English_Spanish_Interpreter_Professional_62_Crack.pdfIn PDF document text
  • https://homeworks.ng/wp-content/uploads/2022/11/andryel.pdfIn PDF document text
  • https://www.mjeeb.com/haseena-maan-jaayegi-full-work-movies-hd-720p/In PDF document text
  • http://gametimereviews.com/?p=78330In PDF document text
  • http://sitesworlds.com/yxjjc29mdcb0b3rhbg1lzglhidmunsbsawnlbnnligtlewdlbibjcmfjawyxj/allowable/bugging/automaker/panettone/&disinfected=ecpi&executive=zg93bmxvywr8vme2y1dzmgvyedhnvfkyt0rnm05qaznowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
  • http://www.tcpdf.orgIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://www.aiim.org/pdfa/ns/extension/In PDF document text
  • http://www.aiim.org/pdfa/ns/schema#In PDF document text
  • http://www.aiim.org/pdfa/ns/property#In PDF document text
  • http://www.aiim.org/pdfa/ns/id/In PDF document text

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