Malicious PDF — malware analysis report

Heuristics 10

• 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.
• 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://find24hs.com/ZG93bmxvYWR8S2YyTVROb056SjhmREUyTlRneU1UZzVPRFY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk/R2lybGZyaWVuZCB0ZWx1Z3UgbW92aWUgdG9ycmVudCBkb3dubG9hZCAxMDgwcAR2l/juniper?stoakley=ectomorph&oophorectomies=raped&tankards= PDF link annotation

  • https://kireeste.com/cartea-bebelusului-fericit-pdf-free-free/In PDF document text
  • http://studiolegalefiorucci.it/?p=45938In PDF document text
  • https://ibipti.com/kahin-to-hogi-woh-instrumental-271/In PDF document text
  • https://zip-favor.ru/videos/hd-online-player-zebra-card-studio-serial-better-full-versio/In PDF document text
  • https://www.pamelafiorini.it/wp-content/uploads/2022/07/wadker.pdfIn PDF document text
  • https://streamcolors.com/wp-content/uploads/2022/07/Norton_Disk_Doctor_Free_Download_Full_14l_EXCLUSIVE.pdfIn PDF document text
  • http://oneteamacademy.com/wp-content/uploads/2022/07/C_Primer_Fifth_Edition_Lippman_Pdf_Download_NEW.pdfIn PDF document text
  • https://cuteteddybearpuppies.com/wp-content/uploads/2022/07/cepimado.pdfIn PDF document text
  • https://zurisdream.com/wp-content/uploads/2022/07/Keigo_Higashino_Naoko_Epub_359-1.pdfIn PDF document text
  • http://barrillos.org/2022/07/26/iptv-xxx-brazzerscandy-fap-etc-serial-key/In PDF document text
  • http://gc.pknowledge.eu/wp-content/uploads/2022/07/prebar-1.pdfIn PDF document text
  • https://earthoceanandairtravel.com/2022/07/26/kandahar-full-top-movie-in-hindi-dubbed-download/In PDF document text
  • http://supreo.fr/wp-content/uploads/2022/07/Faceware_Analyzer_2_0_14_LINK.pdfIn PDF document text
  • http://www.bayislistings.com/full-_top_-portraitpro-15-7-3-standard-edition-license-key/In PDF document text
  • https://guatemall.club/wp-content/uploads/2022/07/ysamora.pdfIn PDF document text
  • https://fraenkische-rezepte.com/wp-content/uploads/2022/07/quakam.pdfIn PDF document text
  • http://www.diarioelsoldecusco.com/advert/adobe-media-encoder-cc-2019-13-0-0-x64-crack-downloadbfdcm-updated/In PDF document text
  • https://drmarcelougarte.com/wp-content/uploads/2022/07/black_ts_tatkal_software_crack.pdfIn PDF document text
  • https://cristinalinassi.com/wp-content/uploads/DS_CADAM_Drafting_V56R2018_SP3_X86_Crack_UPD.pdfIn PDF document text
  • https://streamcolors.com/wp-In PDF document text
  • http://oneteamacademy.com/wp-In PDF document text
  • https://zurisdream.com/wp-In PDF document text
  • https://earthoceanandairtravel.com/2022/07/26/kandahar-full-top-movie-in-hindi-dubbed-In PDF document text
  • http://www.diarioelsoldecusco.com/advert/adobe-media-encoder-cc-2019-13-0-0-x64-crack-In PDF document text
  • https://drmarcelougarte.com/wp-In PDF document text
  • https://cristinalinassi.com/wp-In PDF document text
  • http://find24hs.com/zg93bmxvywr8s2yytvrob056sjhmreuytlrneu1uzzvprfy4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk/r2lybgzyawvuzcb0zwx1z3ugbw92awugdg9ycmvudcbkb3dubg9hzcaxmdgwcar2l/juniper?stoakley=ectomorph&oophorectomies=raped&tankards=In 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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