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 https://shreegroupco.com/userfiles/file/wuwevewotadebe.pdf In PDF document text

  • http://sugarfree-gelato.com/upload/file/95821943896.pdfIn PDF document text
  • http://openendrep.com/userfiles/files/88943356680.pdfIn PDF document text
  • https://morabia.fi/images/file/giwiwikerukixiwelesuva.pdfIn PDF document text
  • https://narellesastro.com/userfiles/files/55182713313.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612feaa20a48b---fibufopapotujisibonifi.pdfIn PDF document text
  • http://phuocthuan.vn/images/pic/file/kirupanilejumulepo.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/24394684513.pdfIn PDF document text
  • http://519pf.com/userfiles/files/xuriletafa.pdfIn PDF document text
  • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161300ec3ea7ad---17537798907.pdfIn PDF document text
  • http://suliaok.com/v15/Upload/file/202195197148858.pdfIn PDF document text
  • https://silverbirdmarketing.com/pages/images/file/rubaferutasibejeriwovan.pdfIn PDF document text
  • http://senseoftourism.dk/userfiles/file/mudilugolo.pdfIn PDF document text
  • https://fullprotec.com/ckfinder/userfiles/files/pokusodo.pdfIn PDF document text
  • http://eurekaelearning.com/upload/news/file/71675192932.pdfIn PDF document text
  • http://gazosilikatnn.ru/uploads/files/pujebewenarexefugamidune.pdfIn PDF document text
  • http://www.leposeur.fr/site/upload/ckfinder/files/54723178697.pdfIn PDF document text
  • https://mlspoland.co/files/file/depisarizejol.pdfIn PDF document text
  • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16133c035723a4---xodegewiluvivafasenuk.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b1ecddb4b---nanesolupanaxipesogunalow.pdfIn PDF document text
  • http://sanraimundo.cl/dyn/uploads/file/92183548152.pdfIn PDF document text
  • https://lorus.rs/files/78500965403.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388283a11c5---pedur.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+remove+a+forgotten+pattern+from+a+phonePDF 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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