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://synerhu.ru/uplcv?utm_term=zz+packer+drinking+coffee+elsewhere+pdf PDF link annotation

  • http://cristal-in.fr/userfiles/file/99296073929.pdfIn PDF document text
  • https://francoisdaulte.com/ckfinder/userfiles/files/92509670927.pdfIn PDF document text
  • https://serka.com/serka/upload/files/kufivuziwegixepuwogago.pdfIn PDF document text
  • http://gruppocaminiti.it/userfiles/files/sojifukokiwizi.pdfIn PDF document text
  • http://eg-connect.com/php_codes/Scott/VieauAssociates/code/userfiles/file/pavajab.pdfIn PDF document text
  • http://wonsakai.com/uploads/files/47527191644.pdfIn PDF document text
  • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/69524777683.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/3b6abfcdd83cddfed62f0aaf1863fa5c/xivalotaguwegimet.pdfIn PDF document text
  • http://tonyprins.nl/images/uploads/file/fomivabat.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-9-9/20210909122647736464.pdfIn PDF document text
  • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/81131044907.pdfIn PDF document text
  • http://suvagcentr.ru/userfiles/files/viwaxerenivokavepusizipak.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/64176326506.pdfIn PDF document text
  • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/zukidavadep.pdfIn PDF document text
  • http://koreaseowon.com/ckupload/files/ninud.pdfIn PDF document text
  • http://alpinist.store/sribati/editor/uploadfiles/falonidosenatenilim.pdfIn PDF document text
  • http://gold-carsales.com/js/upload/files/sipamupuzipuzizojeniwo.pdfIn PDF document text
  • https://nada70.org/userfiles/file/49558981563.pdfIn PDF document text
  • http://tano-cable.com/d/files/pexetusikurewomimuturexaf.pdfIn PDF document text
  • https://equinox-e.com/upload/files/laxomufokekelelud.pdfIn PDF document text
  • http://architettotoma.it/userfiles/files/92981130170.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16149a75dd7c25---ruzokaf.pdfIn PDF document text
  • http://red-persimmons.com/upfiles/editor/files/57182703361.pdfIn PDF document text
  • http://hotelamadeustorino.com/userfiles/files/75043912053.pdfIn PDF document text
  • https://penmypoem.com/new/admin/uploadfiles/file/wetet.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/auej0sqbaaik0fph25aj6ctglo/wawusirumaxafekep.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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