Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://lehmanbrotherbankruptcy.com/bartenders/ZG93bmxvYWR8cjZ5Y1hOaE5ueDhNVFkxT0RJeU1EZzJObng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/U3RhciBEdXN0OiBUaGUgQm9vayBvZiBFYXJ0aCAoVlIpU3R/buzan/disqualification/incomplete/individualists/fabulouscookies/lavendar/ PDF link annotation

  • https://pagenz.com/wp-content/uploads/2022/07/anislat-1.pdfIn PDF document text
  • https://www.cubius.fr/wp-content/uploads/2022/07/bavaree-3.pdfIn PDF document text
  • https://ku6.nl/wp-content/uploads/2022/07/caygio.pdfIn PDF document text
  • https://wintermarathon.de/advert/wordle-5-keygenerator-serial-key-download-x64/In PDF document text
  • https://kramart.com/just-another-memory-hack-mod-2022-latest/In PDF document text
  • https://www.la-pam.nl/fantasy-grounds-pathfinder-rpg-wrath-of-the-righteous-ap-4-the-midnight-isles-hack-mod-registration-code-for-windows-april-2022/In PDF document text
  • http://xn----8sbdbpdl8bjbfy0n.xn--p1ai/wp-content/uploads/2022/07/Arizona_Derby.pdfIn PDF document text
  • https://9escorts.com/advert/decimated-keygen-crack-serial-key/In PDF document text
  • https://tasisatnovin.com/wp-content/uploads/olynei.pdfIn PDF document text
  • https://anandabangalore.org/uncategorized/the-tower-of-tigerqiuqiu-2-warp-tiger-m03-universal-keygen-license-key-for-windowsIn PDF document text
  • https://www.smallblackowned.com/wp-content/uploads/2022/07/Hyperdevotion_Noire_Ultimate_Event_Full_Unlock_Hack_MOD_PCWindows.pdfIn PDF document text
  • https://fraenkische-rezepte.com/wp-content/uploads/2022/07/Neptunia_Virtual_Stars__Bikini_Outfit_VIdol_Set_With_License_Key__License_Keygen.pdfIn PDF document text
  • https://wwexllc.com/wp-content/uploads/2022/07/haizlyn.pdfIn PDF document text
  • http://classiswisconsin.org/wp-content/uploads/2022/07/Flockers.pdfIn PDF document text
  • https://srilankanguides.com/wp-content/uploads/2022/07/gervfaus.pdfIn PDF document text
  • https://antiquesanddecor.org/tower3d-pro-kiad-airport-cheat-code-updated-2022/In PDF document text
  • https://ferramentariasc.com/wp-content/uploads/2022/07/Little_Big_Workshop-2.pdfIn PDF document text
  • https://arseducation.com/fantasy-grounds-hellfrost-sins-of-the-father-savage-worlds-hack-mod-keygen/In PDF document text
  • https://dialdealpk.com/wp-content/uploads/2022/07/staham.pdfIn PDF document text
  • https://kingphiliptrailriders.com/advert/swing-lord-hack-patch-product-key-full-x64/In PDF document text
  • http://lehmanbrotherbankruptcy.com/bartenders/zg93bmxvywr8cjz5y1hoae5uedhnvfkxt0rjeu1ezzjobng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/u3rhcibedxn0oibuagugqm9vaybvzibfyxj0acaovlipu3r/buzan/disqualification/incomplete/individualists/fabulouscookies/lavendar/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://ns.adobe.com/iX/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text

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