Malicious PDF — 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.
• 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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://siteslocate.com/alterations/barnes/UmVzb2x1bWUgQXJlbmEgNi4wLjEUmV/famvir?ZG93bmxvYWR8Z2swY21kMGNueDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=interfusion.pavels&mayans=stiffened PDF link annotation

  • https://smartsizebuildings.com/advert/zokkomon-hindi-movie-dvdrip-download-top/In PDF document text
  • https://bixiehive.com/wp-content/uploads/2022/07/LSLandIssueLSMagazineLSModelsLSDreamsReallolaandBDCompanyVid.pdfIn PDF document text
  • https://vintriplabs.com/fred-falke-part-iv-2011torrent/In PDF document text
  • https://esport-ready.com/wp-content/uploads/2022/07/chemdraw_mac_office_2016_crack.pdfIn PDF document text
  • https://bali-finder.com/wp-content/uploads/2022/07/Fifa_13_Blackbox_Repack_Crack_WORK.pdfIn PDF document text
  • https://cecj.be/arcsoft-totalmedia-3-5-28-217-portable-rar/In PDF document text
  • http://www.perfectlifestyle.info/3d-max-2012-product-key-hot/In PDF document text
  • https://mevoydecasa.es/wp-content/uploads/2022/07/Descenders_Torrent_Download_Ativador.pdfIn PDF document text
  • https://mevoydecasa.es/xforce-keygen-32bits-or-64bits-version-a360-2016-keygen-top/In PDF document text
  • http://jwmarine.org/flexisign-pro-8-6-v2-keygen-link/In PDF document text
  • https://www.incubafric.com/wp-content/uploads/2022/07/renury.pdfIn PDF document text
  • https://dokterapk.com/nil-battey-sannata-movie-hd-download-repack-utorrent/In PDF document text
  • https://nakvartire.com/wp-content/uploads/2022/07/gioras.pdfIn PDF document text
  • http://epicphotosbyjohn.com/?p=28989In PDF document text
  • https://cycloneispinmop.com/50-cent-get-rich-or-die-tryin-album-better-download-zip-78/In PDF document text
  • https://www.dllil.com/wp-content/uploads/2022/07/evelwer.pdfIn PDF document text
  • https://coolbreezebeverages.com/scaricare-cartine-tabacco-gratis/In PDF document text
  • http://www.male-blog.com/2022/07/18/free-download-autocad-lt-2009-crack-free-keygen/In PDF document text
  • https://stepmomson.com/wp-content/uploads/2022/07/Crack_agelong_tree_4_activation_code.pdfIn PDF document text
  • https://homeimproveinc.com/tomorrow-annie-free-hot-sheet-music-pdf/In PDF document text
  • https://bixiehive.com/wp-In PDF document text
  • http://siteslocate.com/alterations/barnes/umvzb2x1bwugqxjlbmegni4wljeumv/famvir?zg93bmxvywr8z2swy21kmgnuedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=interfusion.pavels&mayans=stiffenedIn 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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