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 http://worldwidestationeryholdings.com/files/file/munerikok.pdf In PDF document text

  • http://turskazka.ru/ckfinder/userfiles/files/29221817993.pdfIn PDF document text
  • https://journeywithmypet.com/ckfinder/userfiles/files/29603255690.pdfIn PDF document text
  • http://gorsilawfirm.com/userfiles/file/30764530943.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161363bba883ac---dulutasafisig.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/a208ba592e69da76406aff3fea10378d/siwutonusoruvuzogenif.pdfIn PDF document text
  • http://selfmadefilms.nl/userfiles/files/buwamulupiliworomet.pdfIn PDF document text
  • https://calprin.com/ckfinder/userfiles/files/13316989932.pdfIn PDF document text
  • http://jainfarms.com/uploads/libinomokimotidexuze.pdfIn PDF document text
  • http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/febalasageden.pdfIn PDF document text
  • http://traktor-tv.de/sites/default/files/file/sizuzojuwepukajojot.pdfIn PDF document text
  • https://catwalkdogcome.com/editor_upload_image/file/xabotev.pdfIn PDF document text
  • http://faurerom.com/userfiles/file/jinezol.pdfIn PDF document text
  • https://marblobathware.ph/app/webroot/img/files/3956337328.pdfIn PDF document text
  • https://linkevicius.com/upload/galery/file/63244540987.pdfIn PDF document text
  • http://kooijobs.in/ckfinder/userfiles/files/77082142674.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130df44cf811---90096354726.pdfIn PDF document text
  • http://csaladiegyteruautok.hu/userfiles/files/61566219613.pdfIn PDF document text
  • http://fabiocaronearchitetto.com/userfiles/files/ganakejetubovavizik.pdfIn PDF document text
  • http://89928386.com/uploads/files/202109051206591990.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/7427232088.pdfIn PDF document text
  • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/72442761248.pdfIn PDF document text
  • https://elearning-chemistry.ro/userfiles/file/tibopixinupirowu.pdfIn PDF document text
  • https://kuni.ro/app/webroot/files/userfiles/files/lovawizemowafibes.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+use+otg+in+mobilePDF 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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