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://dormister.com/asentamiento/grennier.boxers?ZG93bmxvYWR8UlM3YW5waWVueDhNVFkxTmpjM01UZ3hPSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=exhibitng&shaftesbury=verbiage/RHZEcnVtLCBVbHRpbWF0ZSBEcnVtIFNpbXVsYXRvciEgZnVsbCBjcmFjayBbZnVsbCB2ZXJzaW9uXQRHZ/taktik PDF link annotation

  • https://nisharma.com/assassins-creed-2-repack-crack-offline-server-11/In PDF document text
  • https://leeventi-teleprompter.com/wp-content/uploads/2022/07/fpqsystem40serial.pdfIn PDF document text
  • https://szklanepulapki.pl/wp-content/uploads/2022/07/download_optitex_12_full_crack_28.pdfIn PDF document text
  • http://buyfitnessequipments.com/?p=16506In PDF document text
  • https://www.tragolink.com/the-orthodox-study-bible-pdf-hot-free-download/In PDF document text
  • https://www.moultonboroughnh.gov/sites/g/files/vyhlif3506/f/uploads/those_serving_our_country_13.pdfIn PDF document text
  • https://dbsangola.com/wp-content/uploads/2022/07/desert_operations_hack_tool_v4_37a_download_19_57.pdfIn PDF document text
  • http://ubipharma.pt/?p=35807In PDF document text
  • https://www.webcard.irish/activationinfraworks2014key/In PDF document text
  • http://studies.nwu.ac.za/sites/studies.nwu.ac.za/files/webform/merit/record/2021/Beatport-Top-100-Deep-House-April-2013-Torrent.pdfIn PDF document text
  • http://www.gurujijunction.com/blog/red-alert-2-windows-10-link-download/In PDF document text
  • https://saungbibit.com/wp-content/uploads/2022/07/KEYGEN_3DS_MAX_2009_64bit171_NEW.pdfIn PDF document text
  • https://ocurme.com/wp-content/uploads/2022/07/jalatiba.pdfIn PDF document text
  • http://bookmanufacturers.org/delftship-professional-rar-bestIn PDF document text
  • https://infobutter.com/wp-content/uploads/2022/07/claeve.pdfIn PDF document text
  • https://rebatecircle.com/wp-content/uploads/2022/07/chabai.pdfIn PDF document text
  • https://www.ne555.it/wp-content/uploads/2022/07/HD_Online_Player_Dharam_Sankat_Mein_Movie_Download_Fi.pdfIn PDF document text
  • https://www.mil-spec-industries.com/system/files/webform/Haarp-Cord-Dragoste-Sau-Frica-Download-Album-Zippy.pdfIn PDF document text
  • http://dormister.com/asentamiento/grennier.boxers?zg93bmxvywr8ulm3yw5wawvuedhnvfkxtmpjm01uz3hpshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=exhibitng&shaftesbury=verbiage/rhzecnvtlcbvbhrpbwf0zsbecnvtifnpbxvsyxrvciegznvsbcbjcmfjaybbznvsbcb2zxjzaw9uxqrhz/taktikIn PDF document text
  • http://studies.nwu.ac.za/sites/studies.nwu.ac.za/files/webform/merit/record/2021/beatport-top-100-deep-house-april-2013-torrent.pdfIn PDF document text
  • http://goodidea.altervista.org/advert/mediacom-karaoke-song-book-song-download-best/In PDF document text
  • http://to-portal.com/upload/files/2022/07/ivoEkQgULmGTa9x1g3xg_03_f99cf9219261276c36a98af43f195c6d_file.pdfIn 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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