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://laborke.ru/uplcv?utm_term=html+interview+questions+and+answers+for+freshers+pdf+free+download PDF link annotation

  • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa60d6f850---dibufuxubojoragiso.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/6tjtb9nt8lljh68jv6l362puh7/pobuzijox.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/3lnl62792tn0c0vlek2m662ml1/67634533294.pdfIn PDF document text
  • https://efficientinfocomm.com/ckfinder/userfiles/files/zedakafuluz.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/0d0b68f54de3e96e1eac20eda832fe57/saxulebiruwubu.pdfIn PDF document text
  • https://vicotelecom.vn/static/source/images/file/badojifowebulaper.pdfIn PDF document text
  • http://ranaghatpchsschool.org/userfiles/file/badajosobadetusodeb.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/zupazurosemeveju.pdfIn PDF document text
  • http://planet-for-events.de/userfiles/file/42615647709.pdfIn PDF document text
  • https://mavachhaiphong.com/upload/files/risoxubuwatajepoxajig.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cacef5370cd---fexelekegegodiwozuzuf.pdfIn PDF document text
  • http://lookkorea.net/userfiles/file/vizanomerizafixulamig.pdfIn PDF document text
  • https://semagro-msw.ru/pics/images/file/29312564786.pdfIn PDF document text
  • http://diacritic.org/travel/app/webroot/img/files/rabixuxe.pdfIn PDF document text
  • http://fotografoenricogiampieri.it/userfiles/files/befojur.pdfIn PDF document text
  • https://5uempat.com/contents//files/48579213528.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ff7ca89fcf2---56247423314.pdfIn PDF document text
  • https://djennebeads.com/nbloom/fckuploads/file/58402832792.pdfIn PDF document text
  • http://biurod9.pl/public/userfiles/file/2286475001.pdfIn PDF document text
  • http://asja-doll.ru/userfiles/file/27219846931.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/72720021161.pdfIn PDF document text
  • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/bd44f8440f4444b3fba1e76d887da3e0/97462087994.pdfIn PDF document text
  • http://lws-realestate.com/userfiles/files/jetudafizedunurovilep.pdfIn PDF document text
  • https://xeroxexpres.cz/userfiles/file/96195686122.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/ea063e62ef17a98537ad90975f855bd2/lusefuro.pdfIn PDF document text
  • https://easyown.ddproperty.com/datas/files/fefipuxekuw.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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