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 https://crysiq.ru/uplcv?utm_term=battles+of+the+american+revolution+super+teacher+worksheets PDF link annotation

  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/d52d56c73d0ebf42086d1d0cf2d8c04f/31993921742.pdfIn PDF document text
  • http://lindendirect.com/tempimg/file/33239395704.pdfIn PDF document text
  • http://abwlondonblvd.com/uploads/files/96675445774.pdfIn PDF document text
  • http://koszyczarek.pl/userfiles/file/16054519229.pdfIn PDF document text
  • http://indigobaby.eu/upload/files/41919916421.pdfIn PDF document text
  • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/160755b8a05462---dipata.pdfIn PDF document text
  • https://szabobuszrendeles.hu/files/files/verobusenij.pdfIn PDF document text
  • https://cuisinescartier.ca/upload/editor/file/desotiwulaja.pdfIn PDF document text
  • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070be471d1c4---73346970484.pdfIn PDF document text
  • http://www.sun-green.eu/ckfinder/userfiles/files/48823847017.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/nfimieu8gf625vqki1a3gp5pq4/99552146643.pdfIn PDF document text
  • http://nkmate.com/FileData/ckfinder/files/20210815_DCAE1067A530472D.pdfIn PDF document text
  • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfd559f58c---32353982205.pdfIn PDF document text
  • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/4d51tuha09qlrug7gdc88jihk7/79761332820.pdfIn PDF document text
  • http://smflow.in/admin/uploads/file/damarojezanimi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/vg9k3t0s2mddcvgjn0grmao8r5/19148023486.pdfIn PDF document text
  • https://dalba.net/other_files/File/44886921656.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/si20petea8nrq9nn7u2a247pc7/24353341181.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161219bc00012a---27345054946.pdfIn PDF document text
  • https://volandovia.it/public/fileeditor/file/zilanurowiza.pdfIn PDF document text
  • http://www.victoriousintl.com/new/resource/files/ripipumokodezolaxasiboj.pdfIn PDF document text
  • http://riggi.ru/userfiles/file/14748844219.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16090a69bdb397---49615188158.pdfIn PDF document text
  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/iq9h3q4dqbba3462jbllth6tg3/65666086883.pdfIn PDF document text
  • http://bptramptour.pl/files/file/8316109113.pdfIn PDF document text
  • https://detectiveoffice.net/userfiles/file/fazakaduketul.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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