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/amite/boggling/primes/U2hlcmEgYW5kIHRoZSBUaHJlZSBUcmVhc3VyZXMgW2NoZWF0XQU2h.rubberized.reigning.ZG93bmxvYWR8a1g1YlcxdGRYeDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.scooter/ PDF link annotation

  • https://protelepilotes.com/wp-content/uploads/2022/07/despea.pdfIn PDF document text
  • https://kjvreadersbible.com/recap-pro-2018-x64-64bit-product-key-and-xforce-hot-keygen/In PDF document text
  • https://www.mozideals.com/advert/full-free-sky-cd-auto-detect-install-drivers-torrent/In PDF document text
  • https://donin.com.br/advert/marriott-hotel-employee-handbook-download-pdf-link/In PDF document text
  • https://lilswanbaby.com/wp-content/uploads/2022/07/saloct.pdfIn PDF document text
  • https://ayoolahraga.id/lifestyle/hwjansonistorijaumetnostipdfdownload-verified-2/In PDF document text
  • https://cepadevinos.com/wp-content/uploads/2022/07/Evar_37_Candydoll.pdfIn PDF document text
  • http://steamworksedmonton.com/hd-online-player-hindi-dubbed-bewakoofiyaan-movies-fu/In PDF document text
  • https://www.cooks.am/wp-content/uploads/2022/07/Bhabhi_Pedia_Full_Movie_1080p_Download_Torrent_Extra_Quality.pdfIn PDF document text
  • https://boomingbacolod.com/aone-avi-divx-to-dvd-svcd-vcd-converter-4-0-serial-incl-serial-key-hot/In PDF document text
  • https://mevoydecasa.es/switchproxy-tool-1-4-1-free-download-updated/In PDF document text
  • https://naturopathicdoctors.com/wp-content/uploads/2022/07/nirgero.pdfIn PDF document text
  • http://valentinesdaygiftguide.net/?p=58329In PDF document text
  • https://www.sparegistrar.com/wp-content/uploads/2022/07/KMSpico_923_FinalThumperDC_Download_FREE_Pc.pdfIn PDF document text
  • https://hgpropertysourcing.com/naked-girls-cs-1-6/In PDF document text
  • https://www.sanjamar.com/wp-content/uploads/2022/07/Demonstar_Full_All_mission_packszip_Game_Download-5.pdfIn PDF document text
  • https://davidocojewelers.com/wp-content/uploads/2022/07/Rosetta_Stone_5037_All_Languages_Packs-1.pdfIn PDF document text
  • https://www.ecyacg.net/wp-content/uploads/2022/07/Sand_Sharks_Full_Movie_In_Hindi_Torrent_Download.pdfIn PDF document text
  • https://xn--80aagyardii6h.xn--p1ai/download-hindi-movie-silsila-hai-pyar-ka-hd-best/In PDF document text
  • https://eqsport.biz/faronics-deep-freeze-8-55-020-5505-standard-better-2/In PDF document text
  • http://xtraserp.com/amite/boggling/primes/u2hlcmegyw5kihrozsbuahjlzsbucmvhc3vyzxmgw2nozwf0xqu2h.rubberized.reigning.zg93bmxvywr8a1g1ylcxdgryedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.scooter/In PDF document text
  • https://donin.com.br/advert/marriott-hotel-employee-handbook-down…In 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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