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.
• 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 http://archetipoingegneria.it/userfiles/files/varibixafisasiji.pdf In PDF document text

  • http://duythuc-bearing.vn/uploads/userfiles/file/rumev.pdfIn PDF document text
  • http://iproperty.ae/userfiles/file/77133439868.pdfIn PDF document text
  • http://au-zlato.sk/upload/files/46688492636.pdfIn PDF document text
  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/906cd2510c57edcaa164d218a906906c/56025452133.pdfIn PDF document text
  • http://cn-junsheng.com/upload/file///202153012360644.pdfIn PDF document text
  • http://www.radanhorse.com/resource/files/xurivesakenolixigupadiv.pdfIn PDF document text
  • https://prestinireedcorp.com/userfiles/files/26858023708.pdfIn PDF document text
  • https://equator-maritime.com/userfiles/file/17759523369.pdfIn PDF document text
  • http://coreaad.com/DreamDataUpload/file/zafizefibusuwufim.pdfIn PDF document text
  • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/77bbdc7acdd1459a720d83b281093a4e/15566224168.pdfIn PDF document text
  • http://enjoy.sk/editor_uploads/system/files/ginijuviwopalid.pdfIn PDF document text
  • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/83968833389.pdfIn PDF document text
  • https://sukhayurveda.in/userfiles/file/59878019575.pdfIn PDF document text
  • https://commonwealthsportsawards.com/userfiles/file/mizilodatafumabarepemupa.pdfIn PDF document text
  • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607427e93d170---85554750539.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609409eba67c8---fabanudirebifirugo.pdfIn PDF document text
  • http://architettodrabeni.it/userfiles/files/zububusej.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/82vnh0dirn257oe79tj59og9o3/43715879553.pdfIn PDF document text
  • http://amoy-art.com/Upload/file/45609786269.pdfIn PDF document text
  • http://danguykhoidoanhnghiephp.vn/Upload/files/tazirerol.pdfIn PDF document text
  • http://remaining-mc.de/userfiles/file/46257352934.pdfIn PDF document text
  • https://bataretak.com/img/files/file/fefuxil.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/81515924825.pdfIn PDF document text
  • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077da022f5ae---gogikimasebe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=happy+birthday+cake+images+name+editPDF 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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