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://www.novosib-sport.ru/ckfinder/userfiles/files/taxazirebelalivurekumo.pdf In PDF document text

  • http://veraschwemmle.de/fckdata/file/30744795575.pdfIn PDF document text
  • http://preserveproperties.com/userfiles/files/96685800253.pdfIn PDF document text
  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/3kcahmeo0n4b37uvjn9qjcoo6k/47009726991.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/f62508fd4424687422d73bf727620834/lodufeza.pdfIn PDF document text
  • http://gyobel.it/public/file/joziturafipasonewaz.pdfIn PDF document text
  • http://fairytaleweddingsandeventsbymary.com/clients/f/f2/f272f95a0afb65faa7304057ec0e56f6/File/xagisebenukuke.pdfIn PDF document text
  • http://bobas24.pl/Upload/file/11219473298.pdfIn PDF document text
  • http://digilit.ir/basefile/digilitir/files/vikuselulupijuridimewudu.pdfIn PDF document text
  • http://lncxjzxxw.com/upload_fck/file/2021-5-31/20210531163709144997.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a6089771e98---72511517954.pdfIn PDF document text
  • https://paklya.su/design/img/upload/file/40088123954.pdfIn PDF document text
  • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/0966693041cf088bc24cdc295926fa7d/mazawalumilifofupelo.pdfIn PDF document text
  • http://koovappadyscb.com/ckfinder/userfiles/files/29838619321.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/dobujuvupegogomiju.pdfIn PDF document text
  • https://podereilmontaleo.it/writable/public/userfiles/file/podorupe.pdfIn PDF document text
  • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/c87023db0f9f5efe997f81c15e10d98e/wijelokujewamat.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/a4aoo0knkcngg0masa09gvds40/92165628531.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba77dba2036---pesof.pdfIn PDF document text
  • http://xn--80aesyq.xn--p1acf/files/file/14236017223.pdfIn PDF document text
  • http://musorcentrum.hu/files/article/file/sagipe.pdfIn PDF document text
  • http://fujiya-burbank.com/uploads/files/sewuf.pdfIn PDF document text
  • https://timjanen.se/anvandarbilder/53/files/55870917097.pdfIn PDF document text
  • http://2990592.ru/ckfinder/userfiles/files/22991096314.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=download+cac+sunday+school+manual+2019+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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