Malicious PDF — malware analysis report

Heuristics 10

• 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.
• PDF links to document on public blob storage high PDF_PUBLIC_BLOB_DOCUMENT_LINK
  PDF contains a clickable action to a document payload hosted on public blob/object storage. Shared object storage can be used legitimately, so this rule is suspicious rather than conclusive unless paired with lure text or other phishing indicators.
• 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.
• PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
  PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
• 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://evacdir.com/aati/chocolate/increasing/limping.marshmallow/ZG93bmxvYWR8alc3Y0dRMmNIeDhNVFkxTkRrNE9URTJNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.memory.northerly.QWRvYmUgQWZ0ZXIgRWZmZWN0cyBBbXRsaWJkbGwgTG9jYXRpb24QWR PDF link annotation

  • https://unimedbeauty.com/cell-211-dual-audio-hindi/In PDF document text
  • https://nlegal.org/wp-content/uploads/2022/06/Ativador_do_Windows_81_utorrent.pdfIn PDF document text
  • https://delcohempco.com/2022/06/12/om-shanti-om-full-movie-hd-download-720p-better/In PDF document text
  • https://www.repaintitalia.it/avid-pro-tools-hd-v12-5-0-395-win-x64-read-nfo-audioutopia-odds-serial-key/In PDF document text
  • https://cartadamacero.it/wp-content/uploads/2022/06/sudhu_tomari_jonno_full_movie_download_720p_torrents.pdfIn PDF document text
  • https://www.theblender.it/xforce-keygen-64-bit-autocad-lt-2013-activation/In PDF document text
  • https://httpsmyservo.com/wp-content/uploads/2022/06/Camnetics_Suite_2020_Free_Download_Latest_FULL.pdfIn PDF document text
  • https://www.shankari.net/2022/06/12/karbalamoviedownloadhindi/In PDF document text
  • http://www.jbdsnet.com/caderno-do-futuro-3-ano-matematica-top-download-grtis/In PDF document text
  • https://carlacookiebox.com/wp-content/uploads/2022/06/Kabhi_Khushi_Kabhie_Gham_Download_Full_Movie_LINK.pdfIn PDF document text
  • https://storage.googleapis.com/wiwonder/upload/files/2022/06/CpGJ7E3dns3iIlmv28cQ_12_ff46ba4c9207c50b96c06b7419f25ad9_file.pdfIn PDF document text
  • https://ultraway.org/wp-content/uploads/2022/06/Download_Subtitle_Indonesia_Film_Jab_Tak_Hai_Jaan.pdfIn PDF document text
  • https://www.anastasia.sk/kings-bounty-warriors-of-the-north-ice-and-fire-full-crack-key-serial-number/In PDF document text
  • https://tygerspace.com/upload/files/2022/06/OXez9VGhv7wwAp8QzEEY_12_ff46ba4c9207c50b96c06b7419f25ad9_file.pdfIn PDF document text
  • https://travelwithme.social/upload/files/2022/06/lsggupX5fCn4g3x16bTO_12_be5663371deef6d5258d09d3dea0827e_file.pdfIn PDF document text
  • https://www.simonefiocco.com/wp-content/uploads/2022/06/delrpres.pdfIn PDF document text
  • http://wendypthatsme.com/2022/06/12/aps-designer-4-0-for-windows-7-64-bit-download-torrent/In PDF document text
  • https://streetbazaaronline.com/2022/06/12/skins-pioneer-cdj-2000-djm-900-nexus-virtual-dj/In PDF document text
  • http://www.cocinarconmilagros.com/wp-content/uploads/2022/06/Xfadesk_64_2014_Crack_VERIFIED.pdfIn PDF document text
  • https://mangalamdesigner.com/wp-content/uploads/2022/06/Crysis_Object_1_Cab.pdfIn PDF document text
  • http://evacdir.com/aati/chocolate/increasing/limping.marshmallow/zg93bmxvywr8alc3y0drmmniedhnvfkxtkrrne9urtjnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.memory.northerly.qwrvymugqwz0zxigrwzmzwn0cybbbxrsawjkbgwgtg9jyxrpb24qwrIn 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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