Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://aplus.to/userfiles/file/91121353596.pdf In PDF document text

  • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/21386493131.pdfIn PDF document text
  • http://georgeandmaryjones.com/clients/f/ff/ff66b05efb8f16ea353d8e6908bb1429/File/nonavireduvoxinavu.pdfIn PDF document text
  • http://randoquad72.fr/userfiles/file/54570637830.pdfIn PDF document text
  • http://psychologyforeverybody.com/ckfinder/userfiles/files/87037186301.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a98aa1deafb---80551282218.pdfIn PDF document text
  • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/b62db3ac1670f17d5d434f5380a4b1df/643010004.pdfIn PDF document text
  • http://101-games.ru/images/uploads/files/94741416859.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1i3254tgjipiibst255fgub6t0/zidedavasamerepajed.pdfIn PDF document text
  • https://myphi.biz/nbloom/fckuploads/file/zelopave.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/23ef22d75eabde84d02b5ed467856c4f/golefavupuj.pdfIn PDF document text
  • https://rybczewice.pl/userfiles/file/81379905727.pdfIn PDF document text
  • https://aradovan.com/userfiles/file/nuraberinexenamu.pdfIn PDF document text
  • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/qoiu20akr0ktv6scltk4joqe19/bawaxazoj.pdfIn PDF document text
  • https://bomberosdenavarra.com/userfiles_nexo/files/22137218301.pdfIn PDF document text
  • http://tms-technology.com/ckfinder/userfiles/files/15317365399.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a288dd3d39c---bojafuduloze.pdfIn PDF document text
  • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc35af018b---51206765373.pdfIn PDF document text
  • http://misosmile.com/upload/editor/files/zoledumoxumud.pdfIn PDF document text
  • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/28ed92a54ab8f0f7fbf6ac89c82e19f7/wunanegulowunike.pdfIn PDF document text
  • https://autosaloncenter.com/uploads/file/81120672680.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/18334062222.pdfIn PDF document text
  • http://lavalnerina.it/userfiles/file/banolade.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/p8tluktqs73hnqa6sga7hi27b1/baxipejuloselemu.pdfIn PDF document text
  • http://usmleworkout.com/files/file/28006224635.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=chest+finder+texture+pack+1.16.5PDF link annotation
  • 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/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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