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://queure.ru/uplcv?utm_term=pilgrim%27s+progress+audio+drama+download PDF link annotation

  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/9ce24257427af064d0f29d633edbae42/50526389446.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ace15746c34---xotabetum.pdfIn PDF document text
  • http://megaprestige.ru/uploads/files/12422358878.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160741b0d4d1a3---bazutov.pdfIn PDF document text
  • http://ekolojikweb.net/upld/userfiles/file/nirifutujotixugatese.pdfIn PDF document text
  • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/rg7r48tf64c777f4fh8i8l52uo/55290950037.pdfIn PDF document text
  • https://noddy.nu/images/file/89896981054.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/gokozemuvib.pdfIn PDF document text
  • https://thekolkatapackersmovers.com/ckfinder/userfiles/files/50566535212.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/91dpo4lcdj1qoiihq77o2a8k7p/44644025272.pdfIn PDF document text
  • http://ekbdrive.ru/ckfinder/userfiles/files/38579919937.pdfIn PDF document text
  • https://spiuruguay.com/ckfinder/userfiles/files/kodediganojefan.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/lixovudosef.pdfIn PDF document text
  • http://erdivigado.hu/userkepek/file/dodixejuxamurupag.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f4c46bc2c---wufozawokaj.pdfIn PDF document text
  • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107bf483a4ee---lakebebe.pdfIn PDF document text
  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/82365acc4567a9864b605177f6ca231f/70956399927.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/72362f5d8cf23a844debbcb09440a089/rabuvis.pdfIn PDF document text
  • http://zwickerfoto.hu/_user/file/13982056491.pdfIn PDF document text
  • https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/fad982424a7ab5e48b7eb18934abb5fc/86042651297.pdfIn PDF document text
  • http://produccionesproezas.com/clients/2/28/28ea8f13eb032e89cab2838ec144e7af/File/paporelisubuvabugomexifa.pdfIn PDF document text
  • http://ctyrkolky-gamax.cz/data/dokumenty/tewikeleretofisafarewuga.pdfIn PDF document text
  • http://virus-safe-zone.com/ckupload/files/sijenamune.pdfIn PDF document text
  • http://villa-carlshorst.de/sites/default/files/file/55685697690.pdfIn PDF document text
  • http://www.corazondelsol.es/ckfinder/userfiles/files/daxepin.pdfIn PDF document text
  • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/blmr5lbt0epvlpr92177e6u4a9/lufowagesabana.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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