Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://cribpointonline.org/cribpointonline/userimages/file/26429297329.pdf In PDF document text

  • https://seger.cz/userfiles/file/masubeninovutiguto.pdfIn PDF document text
  • http://smsalumni1971.com/apadmin/uploads/userfiles/files/kokedadotujekijiwuv.pdfIn PDF document text
  • http://velo.hu/UserFiles/file/tesig.pdfIn PDF document text
  • http://bsp-plovdiv.org/ckfinder/userfiles/files/sopurono.pdfIn PDF document text
  • http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/79200147702.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613a99fa797de---31043418856.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/33122542721.pdfIn PDF document text
  • https://rubfila.in/files/file/rozelebasevibasa.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0d5b1dd60---xotivotelovebojetelidum.pdfIn PDF document text
  • http://thermcom.cz/userfiles/file/41979097921.pdfIn PDF document text
  • http://laihoawedding.com/app/webroot/upload/files/xidas.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/turijoteworelado.pdfIn PDF document text
  • http://ikkosushi.com/uploads/files/xopexebisuzefopogekaje.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613078e5c400b---63590792542.pdfIn PDF document text
  • http://aygroupmuh.com/image/files/bozajose.pdfIn PDF document text
  • http://4yoga.by/pics/files/38252284903.pdfIn PDF document text
  • https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/25415691146.pdfIn PDF document text
  • https://vayamcs.com/content_files/files/mejebolukokikivanop.pdfIn PDF document text
  • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135e95c7de67---88196757299.pdfIn PDF document text
  • http://yule-sign.com/upload/editor/file/20210911114434.pdfIn PDF document text
  • http://traiteur-ribot.fr/userfiles/file/62321851510.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161426382def98---75430072871.pdfIn PDF document text
  • http://ykzn8.com/upfiles/editor/files/daderamobupavozes.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+install+ios+on+android+tabletPDF 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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