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://evacdir.com/R2RtZHN0IFdhdGVybWFyayBNYXN0ZXIR2R.bunsen/ZG93bmxvYWR8T3Y5TVc5MU4zeDhNVFkxTkRZME16TTFNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/playful/militar=coolidge PDF link annotation

  • https://xiricompany.com/banishcd-crack-free/In PDF document text
  • https://cine-africain.com/alasahv/mini-sql-query-crack-product-key/In PDF document text
  • https://vegannebrighton.com/wp-content/uploads/2022/06/IconsLand_Vista_Style_Emoticons.pdfIn PDF document text
  • https://www.georgiacannabis.org/wp-content/uploads/2022/06/ansarih.pdfIn PDF document text
  • http://garage2garage.net/advert/free-flv-to-psp-converter-3-01-0-crack/In PDF document text
  • https://oag.uz/en/itag-crack-free/In PDF document text
  • https://vietnamnuoctoi.com/upload/files/2022/06/hV4krkvDlRacDJIlEYlX_07_7b4c6f5b8e5270b8f744f68a7430f994_file.pdfIn PDF document text
  • https://www.sernecportal.org/portal/checklists/checklist.php?clid=70096In PDF document text
  • https://grumpyshotrod.com/spotlight-on-windows-crack-free-x64-latest-2022/In PDF document text
  • https://treeclimbing.hk/2022/06/08/iges-import-for-autocad-with-key/In PDF document text
  • https://financeguruji.in/easytest-crack-full-product-key-download-latest-2022/In PDF document text
  • https://chatinzone.com/upload/files/2022/06/Fe7obP9TLGgnV4uqUTL8_07_838b6659dc7102560bd5bf5c5187d355_file.pdfIn PDF document text
  • http://mangalamdesigner.com/?p=16148In PDF document text
  • https://dwfind.org/wp-content/uploads/2022/06/nednan.pdfIn PDF document text
  • http://www.vxc.pl/?p=4931In PDF document text
  • https://www.yapi10.com.tr/upload/files/2022/06/eUnLg4jGAvmDX8iv5Nva_07_f85abd3fa515e6309d4a39fddbabad5a_file.pdfIn PDF document text
  • http://escortguate.com/isunshare-product-key-finder-download-for-pc-final-2022/In PDF document text
  • https://kapro.com/wp-content/uploads/2022/06/hanryla.pdfIn PDF document text
  • http://journeytwintotheunknown.com/?p=3826In PDF document text
  • https://bryophyteportal.org/portal/checklists/checklist.php?clid=12912In PDF document text
  • https://vegannebrighton.com/wp-In PDF document text
  • https://vietnamnuoctoi.com/upload/files/2022/06/hV4krkvDlRacDJIlEYlX_07_7b4c6f5b8eIn PDF document text
  • https://chatinzone.com/upload/files/2022/06/Fe7obP9TLGgnV4uqUTL8_07_838b6659dc7In PDF document text
  • https://www.yapi10.com.tr/upload/files/2022/06/eUnLg4jGAvmDX8iv5Nva_07_f85abd3faIn PDF document text
  • http://evacdir.com/r2rtzhn0ifdhdgvybwfyaybnyxn0zxir2r.bunsen/zg93bmxvywr8t3y5tvc5mu4zedhnvfkxtkrzme16ttfnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/playful/militar=coolidgeIn 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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