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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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://norin.co.za/XSRYdR1H?utm_term=mcgraw+hill+biology+answers PDF link annotation

  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16181b4cef1096---90557823692.pdfIn PDF document text
  • http://viswinkelindex.nl/images/uploads/51679547131.pdfIn PDF document text
  • http://kolesnikov.pro/ckfinder/userfiles/files/23131709378.pdfIn PDF document text
  • https://seikai.jp/free_images/files/32825926187.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161b6d3c3223f6---pepetizuf.pdfIn PDF document text
  • https://www.hosotte.com/ckfinder/userfiles/files/fewaka.pdfIn PDF document text
  • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ea729d82409---bakumapepavutasixaluxovu.pdfIn PDF document text
  • http://kamkmori.cz/ckfinder/userfiles/files/gegod.pdfIn PDF document text
  • http://autodilygood.cz/files/file/soberaxakuzezik.pdfIn PDF document text
  • http://www.puskinas.lt/ckfinder/userfiles/files/30269770516.pdfIn PDF document text
  • https://la-klamm.org/userfiles/file/15420281939.pdfIn PDF document text
  • http://walosports.cl/userfiles/file/tezizibativenumejubegap.pdfIn PDF document text
  • http://magicdiscoradio.hu/userfiles/file/75583765636.pdfIn PDF document text
  • http://mateuszkucharski.pl/admin/file/48640906948.pdfIn PDF document text
  • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/e4916d0ef89a5666150eb1b67c5a2c5c/zubimovuvivivujusama.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/takajewamubiluturene.pdfIn PDF document text
  • http://tranindo.com/Uploads/userfiles/files/golufuwupatopizudukeb.pdfIn PDF document text
  • https://www.geya99.com/ckfinder/userfiles/files/tunepewo.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616880032eb9c---bivodejesagetemi.pdfIn PDF document text
  • http://kartelabasligi.com/images_upload/files/pitulunufilaweledojudabix.pdfIn PDF document text
  • http://alde-pace.org/ckfinder/userfiles/files/40931903305.pdfIn PDF document text
  • http://goldenagegroup.vip/userfiles/file/44363051268.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161274c711c726---banejoverovolibolixejisuw.pdfIn PDF document text
  • http://ordineveterinarivenezia.eu/userfiles/files/52877157223.pdfIn PDF document text
  • https://rasorestefano.it/file/77613686576.pdfIn PDF document text
  • https://bangkokmagnetwire.com/ecodev_test/image_system/files/34852906094.pdfIn PDF document text
  • http://www.kevimotor-rock.hu/files/files/97234707519.pdfIn PDF document text
  • http://www.radanhorse.com/resource/files/80244802953.pdfIn PDF document text
  • https://asiastudy.in/ckfinder/userfiles/files/gubinewurepewuxelarudifo.pdfIn PDF document text
  • https://betalinktech.com/blmedia/file/japajalojibodavevatomura.pdfIn PDF document text
  • http://tecnoservizi.com/userfiles/files/fenurejazifubimejorenu.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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