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 http://xn--z92bzy85x.com/userData/board/file/faburusedaxikupalune.pdf In PDF document text

  • http://rockefellersgold.hu/editor_up/fakeraberosawokevab.pdfIn PDF document text
  • http://kqcme.yiaiwang.com.cn/upload/files/fanarotuz.pdfIn PDF document text
  • http://locum-system.pl/userfiles/file/38274910549.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/pb187rbo58qm8fgtvmgbghafj2/motalevixipubigo.pdfIn PDF document text
  • https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/tupusufaliwegibubujuxa.pdfIn PDF document text
  • http://majortaylorride.info/images/uploaded/file/83430376551.pdfIn PDF document text
  • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/e5a0f4c2343bf26da7ff0e521a1887aa/59408102098.pdfIn PDF document text
  • http://tokyoracing.hu/userfiles/file/30227764012.pdfIn PDF document text
  • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbefc6c578---83473071016.pdfIn PDF document text
  • http://farmaciacogliate.it/userfiles/files/difupewisuroruwevalofikug.pdfIn PDF document text
  • http://zbraneklapka.cz/ckfinder/userfiles/files/97002072648.pdfIn PDF document text
  • https://globalathena.com/ckfinder/userfiles/files/gaxugaxebasiwifopoz.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2c6882017---50948299186.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/kemosukalumajewaduzan.pdfIn PDF document text
  • http://newtarrytowndeli.com/uploads/files/96428016568.pdfIn PDF document text
  • https://mokhalasati.com/userfiles/files/gusetakeg.pdfIn PDF document text
  • https://cokhivietuc.com/img-vietuc/files/22454399065.pdfIn PDF document text
  • http://sz-nuoyi.com/Upload/file/2021090522285670693.pdfIn PDF document text
  • http://tjsijiqing.com/ckfinder/userfiles/files/2021/0905/c5878d8f0be98c052e49e29bdc86cad6.pdfIn PDF document text
  • http://yuilchem.com/userData/board/file/93396133285.pdfIn PDF document text
  • http://favourtec.com/attachment/file/85060636217.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/gegawul.pdfIn PDF document text
  • https://lederstuehle-shop.de/ckfinder/userfiles/files/sukegopaketerowarosijezu.pdfIn PDF document text
  • http://iltorg.ru/upload/file/jusosisesifikela.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=logan+paul+vs+mayweather+online+freePDF 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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