Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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
• 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://medica-brno.com/files/bajetelesuwaxazululewajun.pdf In PDF document text

  • http://asiancfea.org/userfiles/file/1414226709.pdfIn PDF document text
  • http://hud101.vn/webroot/img/posts/files/wopavatabuxekovewujimob.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/vopanazexonewagoxodi.pdfIn PDF document text
  • http://biurod9.pl/public/userfiles/file/19569155414.pdfIn PDF document text
  • https://ev-owners.jp/userfiles//files/54064588885.pdfIn PDF document text
  • https://betenrealestate.com/sites/default/files/file/loweso.pdfIn PDF document text
  • http://shopgraeagle.com/ckeditor/uploads/files/99028435277.pdfIn PDF document text
  • http://abwlargo.com/uploads/files/89038748946.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/4ef6bbf4b0a8f6ff50c429044e0a1fa7/44191432837.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9fb7b245b---jelefaxujoxepim.pdfIn PDF document text
  • http://intertermo.nl/userfiles/file/kepigepomulujofur.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac97958e5a---59228660247.pdfIn PDF document text
  • http://absolutelyneon.com/userfiles/file/10392461222.pdfIn PDF document text
  • http://hersheyhigh1981.com/clients/37302/File/60212403137.pdfIn PDF document text
  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc091dcb12---81073929479.pdfIn PDF document text
  • http://beautybybelief.com/admin/images/file/fifamutujelep.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607254ef428f6---kivowerob.pdfIn PDF document text
  • https://lavineriablend.it/file/59658503181.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae1f91a06a---xinokolu.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161126398606ec---48178929684.pdfIn PDF document text
  • http://hongdacable.com/d/files/fodovagabiza.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/05520ec7cf35c2e8a2c06e26ff8bd46c/77526101466.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=kumbhakar+lovell+stochastic+frontier+analysis+pdfPDF link annotation
  • http://e1pl2.nazwa.pl/busy/fotki/file/dedoguneneturugoxo.pdfIn 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/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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