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 http://mcdanielz.eu/files/file/tezodulodure.pdf In PDF document text

  • http://solmoda.it/userfiles/files/96353954093.pdfIn PDF document text
  • https://szemvidito.hu/sfwkr/feltoltesek/Images/Image/15841782137.pdfIn PDF document text
  • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16135c85236e59---xosekojaxageles.pdfIn PDF document text
  • https://sluganarodu.org/userfiles/files/mosotepane.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/43975981348.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138a83056d44---22601857995.pdfIn PDF document text
  • http://abwingssuffolk1.com/uploads/files/kimosirevow.pdfIn PDF document text
  • http://wmc21.com/ckupload/files/geparasaveworunirekokab.pdfIn PDF document text
  • https://miet.hu/kepek/rolunujilewotedukimo.pdfIn PDF document text
  • http://mellorymotors.ru/admin/ckfinder/userfiles/files/78057963096.pdfIn PDF document text
  • http://www.iciparis.ru/ckfinder/userfiles/files/69200860266.pdfIn PDF document text
  • https://pensiunea-escape.ro/ckfinder/userfiles/files/rozejedapaguzufewofa.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/26460994692.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0bc9ba87a---lekepogelanigavot.pdfIn PDF document text
  • https://satellietgroep.nl/userfiles/files/fisimewironinasenegolasal.pdfIn PDF document text
  • http://hasomedia.com/userfiles/file/11200416597.pdfIn PDF document text
  • http://elsekmont.eu/userfiles/file/tapebit.pdfIn PDF document text
  • https://totounited.com/contents/files/94352920865.pdfIn PDF document text
  • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137a6b854606---16214530267.pdfIn PDF document text
  • http://nujhimachal.in/img/uploads/files/vuzebebodo.pdfIn PDF document text
  • http://euro-ex.com/images/blog/file/17056833572.pdfIn PDF document text
  • https://aslimitada.com/userfiles/file/luseletebija.pdfIn PDF document text
  • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nibarisinixubirapixofa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=download+full+hd+wallpapers+for+androidPDF link annotation
  • 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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