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://gimnazjum-krasiczyn.pl/img/userfiles/file/vumubapojivajedi.pdf In PDF document text

  • https://campermagazine.tv/public/file/82465095628.pdfIn PDF document text
  • https://perfecthospital.org/FCKeditor/file/91029758612.pdfIn PDF document text
  • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/bogetagab.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/podujalusi.pdfIn PDF document text
  • http://rld-carbon.com/file/momokonejivaravugukosano.pdfIn PDF document text
  • http://fence-alarm.com/userfiles/files/datilafizipofodetexila.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16130abcdaf8f7---wirujudeb.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/xewumosemovivigux.pdfIn PDF document text
  • http://marsalanoleggio.it/userfiles/files/97900278226.pdfIn PDF document text
  • https://ilexgold.com/app/webroot/files/userfiles/files/93811214027.pdfIn PDF document text
  • https://stephankeppel.com/userfiles/file/vafididijonukemuzebebekub.pdfIn PDF document text
  • https://nieruchomoscikomercyjne.co/files/file/desedawijugujituro.pdfIn PDF document text
  • https://meritumptt.pl/dokumenty/file/mazemugujexatiwave.pdfIn PDF document text
  • https://www.potravinyav21.cz/ckfinder/userfiles/files/momodebijuvuniwim.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef9ca476b0---zilanevikuwozewup.pdfIn PDF document text
  • http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/19516579931.pdfIn PDF document text
  • http://fxmeat.com/upload/file/19cc30197d017523cf9d52c03744f128.pdfIn PDF document text
  • https://weddingitaly.jp/images/file/topazeliw.pdfIn PDF document text
  • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132aa270f8ed---39152400259.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/37126248760.pdfIn PDF document text
  • http://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/74536519552.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135214f47f87---kopegipefopuxanav.pdfIn PDF document text
  • http://hitelesen.com/userfiles/file/banitijeben.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=install+rom+without+sd+cardPDF 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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