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://bestentrypoint.com/detonators/macgregor.legalising/notebook/oiliest/SmFub21lIERpZ2l0aXplciBQcm8gU29mdHdhcmUgRG93bmxvYWQgVG9ycmVudCBEb3dubG9hZCAyOQSmF.ZG93bmxvYWR8c2czYXpkcU1YeDhNVFkxTnpFNE5qazFOWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA?padwa PDF link annotation

  • https://brinke-eq.com/advert/baixar-filmes-zoofilia-gratis/In PDF document text
  • https://egyptlighttours.com/wp-content/uploads/2022/07/Vasool_Raja_Mbbs_Full_HOT_Movie_In_Tamil_Hd_1080p-1.pdfIn PDF document text
  • https://loskutbox.ru/wp-content/uploads/2022/07/descargarmpsoftwareversion90fullcrack.pdfIn PDF document text
  • https://yezcompare.com/2022/07/08/getdata-recover-my-files-v4-6-0-797-pro-software-upd-crack/In PDF document text
  • https://imarsorgula.com/wp-content/uploads/2022/07/rallore.pdfIn PDF document text
  • https://greenboxoffice.ro/artlantis-studio-9-2-4-4-multilingual-cracked-serial-key-hot/In PDF document text
  • https://amazeme.pl/wp-content/uploads/2022/07/Muclickerseason630_PATCHED.pdfIn PDF document text
  • https://www.arunachalreflector.com/2022/07/08/the-bone-collector-1999-brrip-720p-dual-audio-hin-eng-trizy/In PDF document text
  • http://saddlebrand.com/wp-content/uploads/2022/07/free_download_urdu_inpage_2004_for_windows_7.pdfIn PDF document text
  • http://feelingshy.com/audaces-digiflash-4-44-high-quality/In PDF document text
  • https://otelgazetesi.com/advert/ansys-ap121-calc-exe/In PDF document text
  • https://bromedistrict.com/psicologia-social-aroldo-rodrigues-pdf-download-best/In PDF document text
  • https://www.franklinct.com/sites/g/files/vyhlif586/f/pages/covid-19_red_cross_bulletin.pdfIn PDF document text
  • https://edupedo.com/wp-content/uploads/2022/07/chaber.pdfIn PDF document text
  • http://lovetrustfoundation.com/descargar-etabs-gratis-con-crack-__full__/In PDF document text
  • https://xn--80aagyardii6h.xn--p1ai/nalayira-divya-prabandham-book-in-tamil-pdf-87-_top_/In PDF document text
  • https://qflash.es/hindi-hd-mrs-serial-killer-movies-1080p-torrent-top/In PDF document text
  • http://www.b3llaphotographyblog.com/download-new-cleo-4-1-gta-san-andreas/In PDF document text
  • http://bestentrypoint.com/detonators/macgregor.legalising/notebook/oiliest/smfub21lierpz2l0axplcibqcm8gu29mdhdhcmugrg93bmxvywqgvg9ycmvudcbeb3dubg9hzcayoqsmf.zg93bmxvywr8c2czyxpkcu1yedhnvfkxtnpfne5qazfowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda?padwaIn PDF document text
  • http://adtherous.yolasite.com/resources/Endless-Online-Bots-Free-2021-Download.pdfIn PDF document text
  • http://estuate.yolasite.com/resources/Parasitologia-Clinica-Brown-Pdf-HOT-Download.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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