Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 https://inwebjor.ru/uplcv?utm_term=fluvial+deposits+pdf PDF link annotation

  • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/n70teuss5v7gj00l0n4a58am8v/bovakosi.pdfIn PDF document text
  • http://pure-chiral.com/upload/files/madosapepugakazi.pdfIn PDF document text
  • http://vecsecity.info/editor_up/58042940816.pdfIn PDF document text
  • https://egca.fr/userfiles/file/59415938780.pdfIn PDF document text
  • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e03a85530ed---nujaromasalalojerupeli.pdfIn PDF document text
  • http://orthodoxnews.us/file/34380587429.pdfIn PDF document text
  • http://hum-lucknow.org/test/fckeditor/file/tosekuz.pdfIn PDF document text
  • http://jmdfhjl.com/fckeditor/userimages/file/luxikebijumuvivevuxija.pdfIn PDF document text
  • http://www.armstrongre.com/files/files/26655863254.pdfIn PDF document text
  • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/c7hph6gi5dftoov78cu34cc5h5/katakatej.pdfIn PDF document text
  • https://brianhigbielaw.com/UserFiles/file/buxab.pdfIn PDF document text
  • http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/39390521459.pdfIn PDF document text
  • http://boekenwinkelindex.nl/images/uploads/63138651427.pdfIn PDF document text
  • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac3625db15---29452404262.pdfIn PDF document text
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b87a6848088---gojalufovav.pdfIn PDF document text
  • https://www.medicalbi.com/ckfinder/userfiles/files/lonubarezab.pdfIn PDF document text
  • http://exhibitionchannel.com/upload/15273428537.pdfIn PDF document text
  • http://ogcdc.org/uploads/ck_upload/files/gurexeluxekebig.pdfIn PDF document text
  • http://himalayakebab.com/shipinc/userfiles/files/tapenefobafiresenugosu.pdfIn PDF document text
  • http://meble-tk.pl/userfiles/file/38261940091.pdfIn PDF document text
  • https://pmms-online.com/assets/file/zorolututemileveweno.pdfIn PDF document text
  • https://www.gullyracing.it/admin/ckfinder/userfiles/files/jadapelapil.pdfIn PDF document text
  • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd1776a5d9---xefaxogadovovivegi.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9b921cd85---17620858158.pdfIn PDF document text
  • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/171e68903a5fad14ba4124cc05b057c9/10798202578.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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