Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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://esecuritys.com/auxiliaries.U2FhbGEgS2hhZG9vcyBpbiBoaW5kaSAxMDgwcAU2F.htaccessing/undoctored/unocal/ZG93bmxvYWR8bk0xZVRabGMzeDhNVFkxTmpjM01UZ3hPSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • https://paillacotv.cl/advert/dongle-backup-2012-zip-repack/In PDF document text
  • http://joshuatestwebsite.com/hwid-changer-v1-9-pc-setup-exclusive-free/In PDF document text
  • https://aposhop-online.de/2022/07/03/download-crack-top-medal-of-honour-2010/In PDF document text
  • https://cafevalentustienda.com/wp-content/uploads/2022/07/Virtuacop3torrents_FULL.pdfIn PDF document text
  • http://topfleamarket.com/?p=27265In PDF document text
  • https://friendspromotion.com/upload/files/2022/07/deRScfIPb1zhhnjfim9W_03_14fa73515c914195fe4b80b2c056894c_file.pdfIn PDF document text
  • https://cuteteddybearpuppies.com/2022/07/kitchen-draw-6-5-free-crack-diapo-secure-ayashi-exclusive/In PDF document text
  • https://armina.bio/wp-content/uploads/2022/07/Quite_Imposing_Plus_29_Serial_Number_Protector_Bermudas_Reason_Prosavage_Invitacion_Sharem.pdfIn PDF document text
  • https://www.realteqs.com/teqsplus/upload/files/2022/07/A8gCNRNzstTJ3zdDzqHc_03_14fa73515c914195fe4b80b2c056894c_file.pdfIn PDF document text
  • https://cursos-bonificados.com/noticias/gamehouse-150-games-crack-org-hot/In PDF document text
  • https://www.tiempodejujuy.com.ar/advert/arthur-and-the-invisibles-game-pc-exclusive-download/In PDF document text
  • http://nhadatvip.org/?p=4027In PDF document text
  • https://belz-elektromagie.de/wp-content/uploads/2022/07/willdarb.pdfIn PDF document text
  • http://resistanceschool.info/?p=53729In PDF document text
  • http://thenexteverything.com/wp-content/uploads/2022/07/illicunn.pdfIn PDF document text
  • https://www.cameraitacina.com/en/system/files/webform/feedback/scosaro838.pdfIn PDF document text
  • http://www.hva-concept.com/first-day-of-school-2-candid-hd/In PDF document text
  • https://mandarinrecruitment.com/system/files/webform/sfinge-full-version.pdfIn PDF document text
  • https://cycloneispinmop.com/logiciel-mensura-iso-avec-_hot_-crack/In PDF document text
  • http://freemall.jp/wp-content/uploads/2022/07/Arabic_Grammar_Nahw_And_Sarf_Pdf_23.pdfIn PDF document text
  • http://esecuritys.com/auxiliaries.u2fhbgegs2hhzg9vcybpbiboaw5kasaxmdgwcau2f.htaccessing/undoctored/unocal/zg93bmxvywr8bk0xzvrabgmzedhnvfkxtmpjm01uz3hpshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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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