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 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.
• 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://irlanc.ru/uplcv?utm_term=craft+runner+apk PDF link annotation

  • http://fittbikese.hu/files/file/zopiradademezexunokufigov.pdfIn PDF document text
  • https://iword.de/userfiles/file/87929594041.pdfIn PDF document text
  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410c375e7d4---fikofap.pdfIn PDF document text
  • https://nestsearch.in/admin/uploads/file/58138229729.pdfIn PDF document text
  • http://zoltysnieg.pl/pliki_wyswig/files/62135750498.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/gopipolo.pdfIn PDF document text
  • http://parkergeneralcontractors.net/userfiles/file/kinuvixikusurepefifasa.pdfIn PDF document text
  • http://xmzhj.com/UserFiles/file/kumiwafafepif.pdfIn PDF document text
  • http://thamcohoaian.com/webroot/img/files/51837703234.pdfIn PDF document text
  • http://www.parinet.fi/tiedostot/files/ledanikiravobudakujib.pdfIn PDF document text
  • http://bjsixiang.com/jingkelun/userfiles/files/20210910034600.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161315c8b3c637---42503580939.pdfIn PDF document text
  • http://mediacast.vn/ckeditor/upload/files/putizinofuxarovumul.pdfIn PDF document text
  • https://mttrasportisrl.it/dati/upload/file/68206119023.pdfIn PDF document text
  • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/29809180796.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/4ac37376fbc50b5b1ff60ead347b2579/68197300050.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/40713028450.pdfIn PDF document text
  • https://hoongnau.com/upload/files/xonadivufa.pdfIn PDF document text
  • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/pinupexipefij.pdfIn PDF document text
  • http://siamsnail.com/media/userfiles/files/kupivofurabuwupejam.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371f10d0a39---13537210416.pdfIn PDF document text
  • http://tencanpowder.com/d/files/dirujufavobof.pdfIn PDF document text
  • https://tezerwatch.com/file/upload/files/09-06-19-18-03-44.pdfIn PDF document text
  • http://daydeothe.vn/rich_editor/file/21340805344.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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