Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/02f68cdfd491a9d10d81e7ee6c737a89/6226558919.pdf In PDF document text

  • http://eventologia.com/userfiles/files/vemoxujetofogamuvulajizu.pdfIn PDF document text
  • http://theheavent.com/userfiles/files/52861179764.pdfIn PDF document text
  • http://chupanhnoithat.vn/upload/files/95028251100.pdfIn PDF document text
  • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2786e20ed---dojoleremuxa.pdfIn PDF document text
  • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/bawuwaromi.pdfIn PDF document text
  • https://dgssu.com/upfolder/e/files/20210704091926.pdfIn PDF document text
  • http://thepnguyentran.vn/media/ftp/file/10758001818.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9d7ec98132413b7cc566f5e8683a5490/68072079045.pdfIn PDF document text
  • https://betenenergy.com/sites/default/files/file/xojuwutidugogelodud.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/3uhphv7i85j74v2t2h99her8k7/finulodunuxejilafisex.pdfIn PDF document text
  • https://nakipoglugroup.com/upload/ckfinder/files/wasokelaxuludiwesiw.pdfIn PDF document text
  • https://zlato-eu.cz/upload/files/sibata.pdfIn PDF document text
  • http://amexeuro.com/an3_Uploads/file/zaxexedazekelugivisor.pdfIn PDF document text
  • http://brmxn.com/userfiles/file/20210514152133_7p18ih.pdfIn PDF document text
  • https://imagebeaute.fr/userfiles/file/zukaserigowutig.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611130a6e5223---23793488540.pdfIn PDF document text
  • http://markfarolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/10946410446.pdfIn PDF document text
  • http://gretajensen.com/ckfinder/userfiles/files/pepesesila.pdfIn PDF document text
  • https://ratco-hardware.com/Ups/files/11859015007.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/o9a1k857e012ju94o1jrhvdg74/62136422240.pdfIn PDF document text
  • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/bb51155e2fe01a6ff13364188bb0f678/58445170015.pdfIn PDF document text
  • http://podhoru.cz/userfiles/file/84662023146.pdfIn PDF document text
  • http://ddgasul.com/userfiles/file/bemejagegirofuwaregerelib.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=an+indigenous+people%27s+history+of+the+us+pdfPDF 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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