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.
• PDF links to document on public blob storage high PDF_PUBLIC_BLOB_DOCUMENT_LINK
  PDF contains a clickable action to a document payload hosted on public blob/object storage. Shared object storage can be used legitimately, so this rule is suspicious rather than conclusive unless paired with lure text or other phishing indicators.
• 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://hardlyfind.com/cardiff/dWcgbnggOC41IGNyYWNrIHRvcnJlbnQdWc/garlands/?ZG93bmxvYWR8ODhETVdSNFptZDhmREUyTmpJMk9EQXpPVEI4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk=&mcleod=&hypnoidal=mushrooms&hrsdc=surfman PDF link annotation

  • http://purosautosdallas.com/?p=50834In PDF document text
  • http://www.gurujijunction.com/uncategorized/wondershare-filmora-key-code-upd/In PDF document text
  • https://gpapie.com/wp-content/uploads/2022/09/natber.pdfIn PDF document text
  • https://earthoceanandairtravel.com/2022/09/12/vectric-aspire-8-hot-keygen-torrent/In PDF document text
  • https://www.ludomar.com/wp-content/uploads/2022/09/Indian_Freedom_Struggle_By_Venkatesan_Pdf_18lkjhl.pdfIn PDF document text
  • https://losoxla.net/savita-bhabhi-english-pdf-verified-free-download/In PDF document text
  • http://gametimereviews.com/?p=68048In PDF document text
  • https://www.cateringguiden.no/wp-content/uploads/2022/09/Element_3d_License_File.pdfIn PDF document text
  • https://gamersmotion.com/sound-switch-sound-converter-serial-numberl-work/In PDF document text
  • http://www.dagerardo.ch/hd-online-player-duplicate-3-full-movie-download-hd-1-install/In PDF document text
  • https://dsdp.site/it/?p=70048In PDF document text
  • https://teenmemorywall.com/crack-colin-mcrae-4-download-free-verified/In PDF document text
  • https://mashxingon.com/tom-clancys-hawx-2-trainer-1-01-dx11-16-best/In PDF document text
  • https://ibipti.com/wp-content/uploads/2022/09/jailmari.pdfIn PDF document text
  • https://storage.googleapis.com/shamanic-bucket/2ce9fbe1-crack_presto_1003.pdfIn PDF document text
  • http://communitytea.org/wp-content/uploads/2022/09/cepiton-1.pdfIn PDF document text
  • https://wocess.com/wp-content/uploads/2022/09/birmer.pdfIn PDF document text
  • https://demo.takewp.com/listing/tpg-explore/advert/arkmicro-usb-to-serial-ports-driver-download-exclusive/In PDF document text
  • https://foodonate.ch/wp-content/uploads/2022/09/rasmayle.pdfIn PDF document text
  • https://xn--80aagyardii6h.xn--p1ai/wp-content/uploads/2022/09/ekahau_site_survey_free_keygen_17.pdfIn PDF document text
  • http://hardlyfind.com/cardiff/dwcgbnggoc41ignyywnrihrvcnjlbnqdwc/garlands/?zg93bmxvywr8odhetvdsnfptzdhmreuytmpjmk9eqxppvei4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk=&mcleod=&hypnoidal=mushrooms&hrsdc=surfmanIn 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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