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.
• Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
  Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://mydrugdir.com/?binding=boilers&healee=flexural&pasteurised=unvarying/ZG93bmxvYWR8WWc3TVdoMmJYQjhmREUyTmpJMk9EQXpPVEI4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk&percepto=UmVzaWRlbnQgRXZpbC40IFVsdGltYXRlIEhEIEVkaXRpb24gTVVMVGk1LVBST1BIRVQgcmVwYWNrUmV PDF link annotation

  • https://shahjalalproperty.com/wp-content/uploads/2022/09/elvifonz.pdfIn PDF document text
  • https://serippy.com/hdclone-4-2-enterprise-crack-best/In PDF document text
  • https://bonnethotelsurabaya.com/financereal-estate/germanischeheilkundetabellepdfdownload-linkIn PDF document text
  • https://knoxvilledirtdigest.com/wp-content/uploads/2022/09/age_of_empires_3_gold_edition_free_download_full_version.pdfIn PDF document text
  • https://www.cubius.fr/roblox-ninja-legends-script-autosell-autofarmpetegg-windowsmac-os-download-extra-quality-free-macosx/In PDF document text
  • https://madridvirtual.net/fernbus-simulator-multimedia-package-free-download-crack-full-serial-key-keygen/In PDF document text
  • https://www.disputingblog.com/wp-content/uploads/2022/09/bheegi_palkon_par_naam_tumhara_hai_hindi_sad_download_song_p.pdfIn PDF document text
  • https://winebusinesslearning.org/wp-content/uploads/2022/09/Microsoft_Toolkit_252_Final_Activar_Windows_81_Y_Office_2013_LINK.pdfIn PDF document text
  • http://www.studiofratini.com/wp-content/uploads/2022/09/D16_Group_Toraverb_v131_PC__MAC.pdfIn PDF document text
  • http://cipheadquarters.com/?p=58995In PDF document text
  • https://allindiaherb.com/jos-dream-organic-coffee-v1-01-plus-2-trainer-outlaws-rar-exclusive/In PDF document text
  • http://pixology.in/wp-content/uploads/2022/09/redmjaq.pdfIn PDF document text
  • https://snackchallenge.nl/2022/09/13/don-lawrence-storm-cbr-download-cracked/In PDF document text
  • http://executivenavi.com/wp-content/uploads/2022/09/SEC_S3C2410X_TEST_B_D_DRIVERrar.pdfIn PDF document text
  • https://www.the-fox.it/2022/09/13/hd-online-player-policegiri-hindi-1080p-hd-hindi-movi-full/In PDF document text
  • https://tuinfonavit.xyz/autodata-3-38-romana-17/In PDF document text
  • http://villa-mette.com/?p=80213In PDF document text
  • https://codersclinic.com/wp-content/uploads/2022/09/yalsyre.pdfIn PDF document text
  • http://shalamonduke.com/?p=121785In PDF document text
  • https://cambodiaonlinemarket.com/wp-content/uploads/2022/09/eigeodi.pdfIn PDF document text
  • http://mydrugdir.com/?binding=boilers&healee=flexural&pasteurised=unvarying/zg93bmxvywr8wwc3tvdommjyqjhmreuytmpjmk9eqxppvei4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk&percepto=umvzawrlbnqgrxzpbc40ifvsdgltyxrlieheievkaxrpb24gtvvmvgk1lvbst1birvqgcmvwywnrumvIn 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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