Malicious PDF — malware analysis report

Heuristics 6

• 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 link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://starsearchtool.com/ZG93bmxvYWR8dWk1WTI0elozeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/asserters/aspca/asses.neurotics/rainbows.V293emEgU3RyZWFtaW5nIEVuZ2luZSA0IEtleWdlbiA1MSBhc2NpaSByb2NreSBxdWltaWNhV29.fumbles/seldom PDF link annotation

  • https://www.fairlabels.net/serif-pageplus-x7-serial-number-link/In PDF document text
  • https://seo-focus.com/hd-online-player-straight-outta-compton-movie-downloa/In PDF document text
  • https://karahvi.fi/wp-content/uploads/2022/07/wambfou-1.pdfIn PDF document text
  • https://baybenmx.com/wp-content/uploads/2022/07/HD_Online_Player_Naa_Peru_Surya_Na_Illu_India_Full_Mo_UPDATED.pdfIn PDF document text
  • http://getakart.com/wp-content/uploads/2022/07/Malibus_Most_Wanted_2003DvDrip_Xvid_TrT.pdfIn PDF document text
  • https://gospelsmusic.com/wp-content/uploads/2022/07/American_Horror_Story_Latino_720p_99.pdfIn PDF document text
  • https://maltmarketing.com/advert/adeko-6-3-aktivasyon-kodu/In PDF document text
  • https://visitkeila.com/wp-content/uploads/2022/07/katfer.pdfIn PDF document text
  • https://factspt.org/wp-content/uploads/2022/07/Anna_Dual_Audio_English_Hindi_NEW.pdfIn PDF document text
  • http://periodistasagroalimentarios.org/advert/when-a-man-loves-a-woman-percy-sledge-mp3-repack/In PDF document text
  • https://nooorasa.ru/2022/07/25/meinhausplaner-nutzer-id-crack-software-install/In PDF document text
  • https://etex.in/gta-v-female-character-mods-hot/In PDF document text
  • https://www.highgatecalendar.org/wp-content/uploads/2022/07/Isunshareitunespasswordgeniusfull_Fixed35.pdfIn PDF document text
  • https://ladykave.com/extra-speed-anna-nevzorova-darsi-lora-zhenya-torrent-full-version-work/In PDF document text
  • http://jameschangcpa.com/advert/blogos-mergaites-dienorastis-pdf-download-full/In PDF document text
  • https://theferosempire.com/?p=16610In PDF document text
  • https://www.residenzagrimani.it/2022/07/25/heattreatmentbyrajanandsharmapdffreedownload-best/In PDF document text
  • https://www.mjeeb.com/wp-content/uploads/2022/07/parrots_and_their_breeding_book_in_urdu.pdfIn PDF document text
  • http://brotherskeeperint.com/wp-content/uploads/2022/07/crigama.pdfIn PDF document text
  • http://kathebeaver.com/?p=6290In PDF document text
  • https://baybenmx.com/wp-In PDF document text
  • http://starsearchtool.com/zg93bmxvywr8dwk1wti0elozedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/asserters/aspca/asses.neurotics/rainbows.v293emegu3ryzwftaw5nievuz2luzsa0ietlewdlbia1msbhc2npasbyb2nresbxdwltawnhv29.fumbles/seldomIn PDF document text
  • http://jameschangcpa.com/advert/blogos-mergaites-dienorastis-pdf-downloadIn 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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