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/belayed/doms.claimant?cicuitry=&ZG93bmxvYWR8czVDT1c1dFlYeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=delaney&RG9jdG9ycyBJbiBUcmFpbmluZyBTdGVwIDIgQ2sgUmV2aWV3IDIwMTMgVG9ycmVudARG9=regarded PDF link annotation

  • https://bbv-web1.de/wirfuerboh_brett/advert/thuruppugulan-malayalam-movie-free-20-cracked/In PDF document text
  • http://berlin-property-partner.com/?p=52016In PDF document text
  • https://www.mycatchyphrases.com/wp-content/uploads/2022/09/regque.pdfIn PDF document text
  • https://superstitionsar.org/dr-drum-free-full-download-cracked-hot/In PDF document text
  • https://cuteteddybearpuppies.com/wp-content/uploads/2022/09/Larabe_Langue_Vivante_Atoui_Pdf_11.pdfIn PDF document text
  • https://dentistbangsar.com/wp-content/uploads/2022/09/Xforce_Keygen_Adobe_Premiere_Pro_Cc_with_resolucion_financia.pdfIn PDF document text
  • https://www.yildizbots.com/wp-content/uploads/2022/09/Astebreed_Definitive_Edition_BETTER_Download_hack.pdfIn PDF document text
  • https://pur-essen.info/2022/09/09/rhinoceros-5-sr4-better-full-exe-64-bit/In PDF document text
  • https://jasaborsumurjakarta.com/red-orchestra-2-rising-storm-multiplayer-crack-_best_-fixIn PDF document text
  • https://progressivehealthcareindia.com/2022/09/09/la-chute-du-faucon-noir-torrent-fr-radio-gewinnen-hochl/In PDF document text
  • http://ecolovy.net/wp-content/uploads/2022/09/Sonic_Hedgehog_2006_Iso_24_LINK.pdfIn PDF document text
  • https://www.scalping.es/wp-content/uploads/2022/09/Handbook_Of_Cane_Sugar_Technology_Mathur_NEW.pdfIn PDF document text
  • https://www.casadanihotel.com/wp-content/uploads/2022/09/Admanager_Plus_License_File_Crackl.pdfIn PDF document text
  • http://travelfamilynetwork.com/?p=62505In PDF document text
  • https://ssmecanics.com/is-defense-download-setup-compressed-high-quality/In PDF document text
  • https://1z82.com/wp-content/uploads/2022/09/iliaber.pdfIn PDF document text
  • https://sellandbuycompany.com/wp-content/uploads/2022/09/jehomeyg.pdfIn PDF document text
  • https://expressionpersonelle.com/avast-cleanup-premium-activation-code-19-1-7734-incl-full-version-best-crack/In PDF document text
  • https://www.ne555.it/wp-content/uploads/2022/09/Building_The_Great_Wall_Of_China_2__Collectors_Edition_Activation_Code_And_Serial_Number_E.pdfIn PDF document text
  • https://fadesandbeauty.com/wp-content/uploads/2022/09/English_The_Mistress_Of_Spices_Full_Fix_Movie_In_Tamil_Hd_1080p.pdfIn PDF document text
  • http://evacdir.com/belayed/doms.claimant?cicuitry=&zg93bmxvywr8czvdt1c1dflyedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=delaney&rg9jdg9ycybjbibucmfpbmluzybtdgvwidigq2sgumv2awv3idiwmtmgvg9ycmvudarg9=regardedIn 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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