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://raisengine.com/errand.leucopenia?mechanics=misdiagnosed&ZG93bmxvYWR8RjVRYUdack1YeDhNVFkxTmpnNU1qTTFNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=retook==&V2hhdENoYW5nZWQgUG9ydGFibGUV2h=classmen& PDF link annotation

  • http://www.tunlive.com/wp-content/uploads/Moneydance.pdfIn PDF document text
  • https://esport-ready.com/wp-content/uploads/2022/07/Great_Cow_BASIC.pdfIn PDF document text
  • https://budgetparticipatifnivernais.fr/wp-content/uploads/2022/07/dorokato.pdfIn PDF document text
  • https://survivalistprepping.com/product-reviewsmovie-reviews/taccounttool-crack-with-serial-key-free-for-windows-updated/In PDF document text
  • https://sourav.info/wp-content/uploads/2022/07/Bloggers_Vol_2.pdfIn PDF document text
  • https://jacobeachcostarica.net/intel-integrator-toolkit-download-x64-latest-2022/In PDF document text
  • http://www.camptalk.org/neverlost-crack-free-download/In PDF document text
  • https://worlegram.com/upload/files/2022/07/ugsnTo8KssvwCtMXHaut_04_53ad692309e6f55c6e07dd60548e5ec4_file.pdfIn PDF document text
  • http://www.7daystobalance.com/advert/pc-info-with-keygen-download-latest/In PDF document text
  • https://mlu.boun.edu.tr/sites/mlu.boun.edu.tr/files/webform/BasicAudio-NET.pdfIn PDF document text
  • https://www.dandrea.com.br/advert/blueeyem-crack/In PDF document text
  • http://yogaapaia.it/wp-content/uploads/2022/07/yabajuan.pdfIn PDF document text
  • https://calminax.se/free-image-editor-crack-for-windows/In PDF document text
  • https://nisharma.com/proxy-status-crack-free-3264bit-2022-latest/In PDF document text
  • http://un-voyage-au-maghreb.com/?p=3545In PDF document text
  • https://mugvn.s3.amazonaws.com/upload/files/2022/07/ulJxWzc9xbT28bweTXLc_04_8df8a0a378a9c9474f9753ab64405bc2_file.pdfIn PDF document text
  • https://besttoolguide.com/2022/07/04/htc-wifi-bluetooth-enabler-disabler/In PDF document text
  • https://sugaringspb.ru/paint-board-crack-with-license-code-2022-latest/In PDF document text
  • https://amaderkishoreganj.com/electrical-control-techniques-simulator-crack-free/In PDF document text
  • http://raisengine.com/errand.leucopenia?mechanics=misdiagnosed&zg93bmxvywr8rjvryudack1yedhnvfkxtmpnnu1qttfnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=retook==&v2hhdenoyw5nzwqgug9ydgfibguv2h=classmen&In PDF document text
  • https://wakelet.com/wake/_V1SHzos7ZdFXLkjKFq5ZIn 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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