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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://esecuritys.com/cherdshewasart/RWxkZW4gUmluZwRWx.calendar?atherothrombotic=fingertips&maddox=..ZG93bmxvYWR8WUY3T0RSM05YeDhNVFkxTnpnek1EUXlOWHg4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk.neuroscientists PDF link annotation

  • http://pearlhmmph.com/wp-content/uploads/2022/07/torvyvi.pdfIn PDF document text
  • http://technorium.ma/wp-content/uploads/2022/07/Elden_Ring-14.pdfIn PDF document text
  • https://aqueous-atoll-16680.herokuapp.com/abbofa.pdfIn PDF document text
  • http://dichvuhoicuoi.com/wp-content/uploads/2022/07/Elden_Ring-17.pdfIn PDF document text
  • http://nineteeneightzero.com/elden-ring-full-license-v-1-02-dlc-free-latest-2022/In PDF document text
  • https://usalocalads.com/advert/repack-elden-ring-skidrow-codex-dlcwith-serial-key-mac-win-2022-new/In PDF document text
  • https://l1.intimlobnja.ru/elden-ring-deluxe-edition-dlc-license-key-full-free/In PDF document text
  • http://lovelymms.com/elden-ring-deluxe-edition-crack-file-only-skidrow-codex-dlc-free/In PDF document text
  • https://obscure-mesa-51867.herokuapp.com/Elden_Ring.pdfIn PDF document text
  • https://enigmatic-tundra-00993.herokuapp.com/Elden_Ring.pdfIn PDF document text
  • https://www.keytoheaventabernacle.org/wp-content/uploads/2022/07/Elden_Ring_Deluxe_Edition_Crack_Full_Version_SKiDROW___DLC_Free_Download_For_Windows.pdfIn PDF document text
  • https://damp-thicket-05481.herokuapp.com/margjose.pdfIn PDF document text
  • https://peaceful-crag-83436.herokuapp.com/initob.pdfIn PDF document text
  • https://swecentre.com/elden-ring-hack-patch-skidrow-dlc/In PDF document text
  • https://gentle-cove-96956.herokuapp.com/Elden_Ring.pdfIn PDF document text
  • http://dichvuhoicuoi.com/wp-In PDF document text
  • http://nineteeneightzero.com/elden-ring-full-license-v-1-02-dlc-free-In PDF document text
  • https://usalocalads.com/advert/repack-elden-ring-skidrow-codex-dlcwith-In PDF document text
  • https://l1.intimlobnja.ru/elden-ring-deluxe-edition-dlc-license-key-full-In PDF document text
  • http://lovelymms.com/elden-ring-deluxe-edition-crack-file-only-skidrow-In PDF document text
  • https://www.keytoheaventabernacle.org/wp-content/uploads/2022/07/ElIn PDF document text
  • http://esecuritys.com/cherdshewasart/rwxkzw4gumluzwrwx.calendar?atherothrombotic=fingertips&maddox=..zg93bmxvywr8wuy3t0rsm05yedhnvfkxtnpnek1euxlowhg4twpvne4zedhlrtbwsuvobgntoxjku0jium1gemrdqkhsvtvk.neuroscientistsIn 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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