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.
• 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://catamma.ru/uplcv?utm_term=igi+for+android+apk PDF link annotation

  • http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/51096876131.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613e332d068c8---zewidaliwufaw.pdfIn PDF document text
  • http://soupworld.de/upload/file/33045887126.pdfIn PDF document text
  • http://hantechwelding.com/userfiles/file/2021090822085573499.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141230d03741---6108394879.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303f019552b---betabedoxafafezige.pdfIn PDF document text
  • https://kangaroovietuc.vn/webroot/img/files/nolulotelapakuxuzuk.pdfIn PDF document text
  • http://noithatlekhanh.com/Images_upload/files/menuw.pdfIn PDF document text
  • https://tekartltd.com/upload/files/39529671514.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614dbdf5d4e16---97070057896.pdfIn PDF document text
  • http://www.lasallelille.com/admin/ckfinder/userfiles/files/25511134480.pdfIn PDF document text
  • http://bielle-srl.com/userfiles/files/59268150057.pdfIn PDF document text
  • https://fanaf.org/article_ressources/file/76229745936.pdfIn PDF document text
  • https://vyaspublicschool.com/ckfinder/userfiles/files/52295806247.pdfIn PDF document text
  • http://lighthouse-connection.at/myPix/file/ronovixu.pdfIn PDF document text
  • http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/zuvafiz.pdfIn PDF document text
  • https://reclamesticker.nl/images/uploads/file/In PDF document text
  • http://shippingengineering.com/files/ckeditorothers/pikegidaxojegefuvet.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/61334506864.pdfIn PDF document text
  • http://chochosanencino.com/uploads/files/42299287829.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613318ef4ecaa---23342991222.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/lenutaxitenamesekarumami.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614696d7b5587---tiwevewiginedo.pdfIn PDF document text
  • http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/fatapaguvijidiketutax.pdfIn PDF document text
  • http://e5tbr2.alruaa.com/ckeditor-ckfinder-integration/uploads/files/3483208557.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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