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://lehmanbrotherbankruptcy.com/electrophoresis.QUMgREMgTGV0IFRoZXJlIEJlIFJvY2sgKDE5ODApIFtIMjY0XSBbRFZEUmlwXQQUM.ZG93bmxvYWR8T2g2TTJad05ueDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/apposite.vagaries/fits PDF link annotation

  • http://wp2-wimeta.de/4k-video-downloader-4-5-0-link-crack-mac/In PDF document text
  • https://guapolocotattoo.it/wp-content/uploads/2022/07/Image_Doctor_2_Keygen_Download_.pdfIn PDF document text
  • https://alaediin.com/wp-content/uploads/2022/07/FloorPlan3DDesignSuite11032Crack.pdfIn PDF document text
  • https://xn--80aagyardii6h.xn--p1ai/dos2usb-license-key-1-59-84-crack-install-checked-9757-127999/In PDF document text
  • https://www.ozcountrymile.com/advert/atomix-virtual-dj-pro-10-0-2081-incl-new-crack-download-pc/In PDF document text
  • https://postlistinn.is/cimco-edit-v5-free-download-495-linkIn PDF document text
  • https://lerochlab.fr/wp-content/uploads/2022/07/jesraf.pdfIn PDF document text
  • https://texvasa.com/2022/07/27/vasanthathil-oru-naal-tamil-movie-mp3-songs-free-best-21/In PDF document text
  • https://gulfscout.com/wp-content/uploads/2022/07/casfurn.pdfIn PDF document text
  • https://discovery.info/download-chhota-bheem-and-the-throne-of-bali-movies-dubbed-in-hindi-for-free-upd/In PDF document text
  • https://speakerauthorblueprint.com/2022/07/26/paragon-harddisk-manager-serial-key-keygen-repack/In PDF document text
  • https://hulpnaongeval.nl/wp-content/uploads/Celemony_Melodyne_Editor_201_Keygen_NEW_12.pdfIn PDF document text
  • http://www.jbdsnet.com/?p=32548In PDF document text
  • https://www.raven-guard.info/adobe-indesign-4-0-cs2-win-eng-tntvillage-top/In PDF document text
  • https://rodillosciclismo.com/sin-categoria/mishkin-money-and-banking-10th-edition-powerpoint-slides-verified/In PDF document text
  • http://valentinesdaygiftguide.net/?p=74168In PDF document text
  • https://kuchawi.com/z-os-adcd-113-13/In PDF document text
  • https://parisine.com/wp-content/uploads/2022/07/jasansl.pdfIn PDF document text
  • https://cb4.travel/wp-content/uploads/2022/07/xymodore.pdfIn PDF document text
  • http://www.fangyao.org/wp-content/uploads/2022/07/Vrajitorul_Din_Oz_Carte_Pdf_Free_NEW_Agendas_Cristal_Vece.pdfIn PDF document text
  • https://discovery.info/download-chhota-bheem-and-the-throne-of-bali-movies-dubbed-in-hindi-for-In PDF document text
  • https://speakerauthorblueprint.com/2022/07/26/paragon-harddisk-manager-serial-key-keygen-In PDF document text
  • https://rodillosciclismo.com/sin-categoria/mishkin-money-and-banking-10th-edition-powerpoint-slides-In PDF document text
  • http://www.fangyao.org/wp-In PDF document text
  • http://lehmanbrotherbankruptcy.com/electrophoresis.qumgremgtgv0ifrozxjliejlifjvy2sgkde5odapiftimjy0xsbbrfzeumlwxqqum.zg93bmxvywr8t2g2ttjad05uedhnvfkxt0rjee9uutnnm3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/apposite.vagaries/fitsIn PDF document text
  • https://www.ozcountrymile.com/advert/atomix-virtual-dj-pro-10-0-2081-incl-new-crack-downloadIn 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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