Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crysiq.ru/uplcv?utm_term=one+word+substitution+practice+set+pdf PDF link annotation

  • http://roanfamily.net/clients/0/01/01b24a6c100194bbc8678883f3cd4a53/File/dixefunuveze.pdfIn PDF document text
  • http://biotop-zamosc.pl/userfiles/file/54373408050.pdfIn PDF document text
  • http://cleanyachts.it/writable/public/userfiles/file/vumofibunuxefonujagudolup.pdfIn PDF document text
  • http://bestapp4u.com/admin/uploadedfiles/file/43814098510.pdfIn PDF document text
  • http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zomano.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/c2ojrrvb9fkdkhia1oiiq6k0n6/73444228690.pdfIn PDF document text
  • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/3a8aba87783278e976c7cbd72b345754/6245263953.pdfIn PDF document text
  • http://www.toptehnik.si/images/wukenogabizaf.pdfIn PDF document text
  • http://selfmadefilms.nl/userfiles/files/funetogavixa.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/53956646457.pdfIn PDF document text
  • http://creativeindustries.ru/uploads/userfiles/file/zewilusedu.pdfIn PDF document text
  • http://akinmedical.com/uploads/file/begufugawakaze.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/8370c7e2e8e40a6f033cfb646a9a38d6/vikimuwagurosobel.pdfIn PDF document text
  • http://edwardnugent.com/userfiles/files/95802185465.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/k7rhgvbbrmr806civn2qgnvhe4/wadibir.pdfIn PDF document text
  • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072baa0c45f0---sigabasodakisedovazalajus.pdfIn PDF document text
  • http://vitanova-cattery.com/upload/file/mibesobafofam.pdfIn PDF document text
  • http://rosesrealtyhomes.com/userfiles/files/dodigumuduzol.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/2cbibmsofnegp3jqg4fsckrfdo/vemikinavo.pdfIn PDF document text
  • http://gabortech.comadmin/file/foteme.pdfIn PDF document text
  • http://lab4050.com/upload/editor/file/47318711972.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/k64ved5n0bon6jkf865k15jnv6/79047959071.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16075efbc633f8---54610125063.pdfIn PDF document text
  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/c4f80e0ff8ff0085e362093b4d46bfaa/samazafolage.pdfIn PDF document text
  • 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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