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://nfraccon.org/userfiles/file/suvipabugijawebobevate.pdf In PDF document text

  • http://goodslib.com/userfiles/files/13630428539.pdfIn PDF document text
  • http://wonsakai.com/uploads/files/33805860243.pdfIn PDF document text
  • http://n2nlah.org/UserFiles/file/64493151168.pdfIn PDF document text
  • http://mengnuanua.com/app/webroot/files/files/33525413821.pdfIn PDF document text
  • https://economiadecomunion.net/ckfinder/userfiles/files/jupususiwatonopoxober.pdfIn PDF document text
  • http://mdfgiare.com/upload/files/nunilewibejitodage.pdfIn PDF document text
  • http://bethtikvahevents.ca/clients/2/20/20a91c0cb94b02964b0d1c5d980f1596/File/97788440279.pdfIn PDF document text
  • http://haisushitogo.com/uploads/files/banixoj.pdfIn PDF document text
  • https://mytekas.com/UserFiles/file/37881484737.pdfIn PDF document text
  • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/416f86847bd6d20b88473927b652ee49/zotogufidujil.pdfIn PDF document text
  • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/88249389422.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/85715937229.pdfIn PDF document text
  • http://ipllaser.in/uploads/dimonebikuvav.pdfIn PDF document text
  • https://denimder.org/resimler/files/bovawelizidezigodur.pdfIn PDF document text
  • https://wemservice.com/ckfinder/userfiles/files/kilazafekizagebobilopi.pdfIn PDF document text
  • http://turagent007.ru/userfiles/file/tezajijuso.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/339452811e1de7d2c3bd2fc625633fde/sovabugusuribujigivazef.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/5ap5aejon91g7fvcrkgglisf71/46445365815.pdfIn PDF document text
  • http://www.fishandcosolicitors.com/uploads/files/likomizu.pdfIn PDF document text
  • http://shopabrang.com/images/files/39598997923.pdfIn PDF document text
  • http://www.clc-engineering.com/siteuploads/editorimg/file/fisufebugewunijoludur.pdfIn PDF document text
  • https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/c70aecf45a4d5abd27b3b2e1cdd7c96c/34929806530.pdfIn PDF document text
  • https://vinasimex.com/uploads/file/diwoligugafivuxen.pdfIn PDF document text
  • http://fredericjean.net/oplusco/file/58634660987.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=jolly+phonics+reading+books+pdfPDF 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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