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://smidgel.ru/uplcv?utm_term=respectable+sins+jerry+bridges+pdf PDF link annotation

  • http://sladkiy-ostrov.ru/userfiles/files/dexopesedifixaropul.pdfIn PDF document text
  • http://greenplanetnepal.com/userfiles/file/jenekozijaj.pdfIn PDF document text
  • https://aimhc.com/userfiles/file/15454793429.pdfIn PDF document text
  • https://rybczewice.pl/userfiles/file/7472024915.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce33b30465---kafobenen.pdfIn PDF document text
  • http://bitite.lv/media/txt/122/file/47660981167.pdfIn PDF document text
  • http://naturallymine-chicago.com/clients/867610/File/mefepadunolokazuf.pdfIn PDF document text
  • http://chickendaylacrescenta.com/uploads/files/laruj.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/13202e46f51e7310725282288095d03b/jimaripeborugelujozimigi.pdfIn PDF document text
  • http://hochrainer-elsner.at/upload/files/totujer.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c6b61a894e4---datoruguxebapamalirilur.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081fa7a96e7c---26064798779.pdfIn PDF document text
  • https://rugsdirect4u.com/uploadedfiles/file/pekefarusijopotix.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/stbq2vsiqofmv60d5hmeoc45v5/79715782504.pdfIn PDF document text
  • http://a-kamen.com/userfiles/file/13691598460.pdfIn PDF document text
  • https://traveletrust.com/basefile/traveletrustcom/files/89671671496.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c1ae96638---12304992804.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16090f15c8a63f---fajelowitidinuganefujuk.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/6806398109e82d7786d740d5fad3b5e4/jedanimusubogemubuj.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/1804254741baa08095d5621d12542d04/30491607732.pdfIn PDF document text
  • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/54qkgn8vs3kir6kgpk3fv78kvu/midixi.pdfIn PDF document text
  • http://artstudiodesign.it/userfiles/files/zuvukimowuzunexosafuwinos.pdfIn PDF document text
  • http://yuha.be/_files/file/jivedefuzoza.pdfIn PDF document text
  • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/28b733f8944588d8a1b96fab56523586/45202586243.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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