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://xtraserp.com/ZG93bmxvYWR8bjRtYnpWamEzeDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.cruiseonly=noose?erosions=sorenstam&intercourse=malefics&termite=Z3RhIHNhbiBhbmRyZWFzIGJ1Y3VyZXN0aSB0b3JyZW50IGRvd25sb2FkZ3R PDF link annotation

  • http://bachelorsthatcook.com/wp-content/uploads/2022/07/Solucionario_De_Investigacion_De_Operaciones_Gdeppen__43_REPACK.pdfIn PDF document text
  • https://wakandaplace.com/wp-content/uploads/2022/07/Download_Cheat_Engine_Rohan_Indonesia_HOT.pdfIn PDF document text
  • http://lovelyonadime.com/photography-and-rendering-with-vray-rar-hot/photography-and-rendering-with-vray-rar-hot/In PDF document text
  • https://www.opticnervenetwork.com/wp-content/uploads/2022/07/kalkgian.pdfIn PDF document text
  • https://autko.nl/wp-content/uploads/2022/07/elelynd.pdfIn PDF document text
  • https://www.riobrasilword.com/2022/07/28/maxqda-10-4-15-1-portable/In PDF document text
  • https://missionmieuxetre.com/2022/07/28/efecto-vampiro-pelicula-completa/In PDF document text
  • http://findmallorca.com/recover-my-files-v4-9-4-license-key-crack-upd/In PDF document text
  • https://authorwbk.com/wp-content/uploads/2022/07/franhel.pdfIn PDF document text
  • https://tuscomprascondescuento.com/2022/07/28/microsoft-hyper-v-network-switch-default-miniport-driver-windows-8-1-16/In PDF document text
  • https://mohacsihasznos.hu/advert/i-manoharudu-telugu-full-movie-download-in-kickasstorrentsk-verified/In PDF document text
  • https://koi-rausch.de/wp-content/uploads/pirterr.pdfIn PDF document text
  • https://sandylaneestatebeachclub.com/wp-content/uploads/2022/07/rhinojewel_50_v5_torrent_1.pdfIn PDF document text
  • https://ergotherapie-wahmkow.de/murgee-random-mouse-clicker-cracked-full/In PDF document text
  • http://topgiftsforgirls.com/?p=26266In PDF document text
  • https://ctago.org/rapunzel-le-incredibili-nozze-torrent-ita-high-quality/In PDF document text
  • https://kireeste.com/indiana-jones-1080p-complete-torrent/In PDF document text
  • https://kidswheelsllc.com/wp-content/uploads/2022/07/papmar.pdfIn PDF document text
  • http://spotters.club/shapecollage-2-1-setup-exe-serial-keyl-__exclusive__/In PDF document text
  • https://biodashofficial.com/erykah-badu-baduizm-zip-hot/In PDF document text
  • http://xtraserp.com/zg93bmxvywr8bjrtynpwamezedhnvfkxt0rjee9uutnnm3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.cruiseonly=noose?erosions=sorenstam&intercourse=malefics&termite=z3rhihnhbibhbmryzwfzigj1y3vyzxn0asb0b3jyzw50igrvd25sb2fkz3rIn 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://ns.adobe.com/iX/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text

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