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://dawnloadonline.com/woman.atheroma?ZG93bmxvYWR8TU82WVdOM01ueDhNVFkyT1RReE5qUXlPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=Q29udG9oIFNvYWwgRnVuZ3NpIExpbmVhciBNYXRlbWF0aWthIERhbiBKYXdhYmFubnlhQ29/burritos/expound/caliph/snowdonia.uncomplaining PDF link annotation

  • https://mercatinosport.com/wp-content/uploads/2022/11/alikvale.pdfIn PDF document text
  • https://www.enveth.gr/advert/jai-santoshi-maa-dual-audio-hindi-eng-720p-__top__/In PDF document text
  • https://katrinsteck.de/wp-content/uploads/charher.pdfIn PDF document text
  • http://www.bigislandltr.com/wp-content/uploads/2022/11/Tai_Endnote_X6_Full_Crack.pdfIn PDF document text
  • https://boardingmed.com/2022/11/26/zombie-bowl-o-rama-__hot__-full-crack-torrent/In PDF document text
  • https://orbeeari.com/wp-content/uploads/2022/11/aidahay.pdfIn PDF document text
  • https://www.sulpezzo.it/wp-content/uploads/2022/11/gabwelc.pdfIn PDF document text
  • http://www.studiofratini.com/shaurya-movie-download-hd-1080p-kickass-torrent-verified/In PDF document text
  • https://www.candipipes.com/wp-content/uploads/2022/11/vandea.pdfIn PDF document text
  • http://wp2-wimeta.de/tom-and-jerry-fists-of-fury-game-free-download-full-version-updated/In PDF document text
  • https://www.enveth.gr/advert/jai-santoshi-maa-dual-audio-hindi-In PDF document text
  • http://www.bigislandltr.com/wp-In PDF document text
  • https://boardingmed.com/2022/11/26/zombie-bowl-o-rama-__hot__-full-crack-In PDF document text
  • http://www.studiofratini.com/shaurya-movie-download-hd-1080p-kickass-torrent-In PDF document text
  • http://wp2-wimeta.de/tom-and-jerry-fists-of-fury-game-free-download-full-In PDF document text
  • http://dawnloadonline.com/woman.atheroma?zg93bmxvywr8tu82wvdom01uedhnvfkyt1rree5quxlpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=q29udg9oifnvywwgrnvuz3npiexpbmvhcibnyxrlbwf0awthierhbibkyxdhymfubnlhq29/burritos/expound/caliph/snowdonia.uncomplainingIn PDF document text
  • http://www.bigislandltr.com/wp-content/uploads/2022/11/tai_endnote_x6_full_crack.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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