Malicious PDF — malware analysis report

Heuristics 9

• Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
  PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
• 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://sitesworlds.com/cholesterolemic/drithi.paradoxes?dmNkcyBsaXRlIDEuMiAxMwdmN=nala&potenizied=subcontractors.premoistened.ZG93bmxvYWR8dHYxWVhRMk5YeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • http://jwmarine.org/anthony-kaun-hai-movie-hindi-hd-download-patched/In PDF document text
  • https://poll.drakefollow.com/sout.js?v=1.1.1In PDF document text
  • https://fitadina.com/2022/07/25/come-scaricare-gemitaiz-e-mad-men-haterproof-repack/In PDF document text
  • https://churchillcat.com/wp-content/uploads/2022/07/lovign.pdfIn PDF document text
  • https://juncty.com/wp-content/uploads/2022/07/excel_2_vcard_v1_3_crack_4.pdfIn PDF document text
  • https://secretcs2020.com/wp-content/uploads/2022/07/zacccla.pdfIn PDF document text
  • http://fitnessbyava.com/wp-content/uploads/2022/07/Tumblebugs_2_FuLLy_Cracked.pdfIn PDF document text
  • https://www.dandrea.com.br/advert/ports-of-call-xxl-platinum-__link__-crack/In PDF document text
  • https://kallatoyotasengkang.com/2022/07/25/file60172-zip-logic-pro-9-trial-version-portable-download/In PDF document text
  • https://liquidonetransfer.com/wp-content/uploads/2022/07/warayosh.pdfIn PDF document text
  • https://colegioalbertsonsslp.com/wp-content/uploads/2022/07/elichal.pdfIn PDF document text
  • https://ayusya.in/combiwave-jingle-player-pro-4-4-36-4/In PDF document text
  • https://fokusparlemen.id/wp-content/uploads/2022/07/mouzee.pdfIn PDF document text
  • http://www.intersections.space/wp-content/uploads/2022/07/berwal.pdfIn PDF document text
  • http://lawcate.com/wondershare-filmora-9-2-0-35-crack-license-key-2019-latest-upd/In PDF document text
  • https://besttoolguide.com/2022/07/25/active-skills-for-reading-book-4-answer-key-exclusive/In PDF document text
  • http://yotop.ru/2022/07/25/index-of-1080p-parent-directory-35/In PDF document text
  • https://ready2reading.com/wp-content/uploads/2022/07/HACK_mp3Tag_Pro_601_Serial_Espa_ol_Spanish_by_FranLopez.pdfIn PDF document text
  • https://awazpost.com/wp-content/uploads/2022/07/fordbran.pdfIn PDF document text
  • https://myvideotoolbox.com/xforce-keygen-maya-2016-64-bit-windows-new/In PDF document text
  • http://sitesworlds.com/cholesterolemic/drithi.paradoxes?dmnkcybsaxrlideumiaxmwdmn=nala&potenizied=subcontractors.premoistened.zg93bmxvywr8dhyxwvhrmk5yedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
  • http://fitnessbyava.com/wp-content/uploads/2022/07/tumblebugs_2_fully_cracked.pdfIn 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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