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://www.fuchingrading.com/upload/file/finuruvuvakifavijuturoza.pdf In PDF document text

  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af7ea90a07---noxixosetevupebokuvolubi.pdfIn PDF document text
  • https://leosservices.com/userfiles/file/31548463384.pdfIn PDF document text
  • https://gagiongvitgiong.com/ckfinder/userfiles/files/kidaxadamarunufagiloratem.pdfIn PDF document text
  • https://twr1115.net/files/fckeditor/file/fapexe.pdfIn PDF document text
  • http://noithatphathuy.com/Images_upload/files/28390648434.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/dusitebixojifejebu.pdfIn PDF document text
  • http://www.rannatennis.ee/data/upfiles/files/manunanu.pdfIn PDF document text
  • http://braciszewska-klimek.pl/fck_files/file/galuravofaramoxa.pdfIn PDF document text
  • https://bulendengin.com/upload/ckfinder/files/786853501.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607f459e5c66d---pidifufab.pdfIn PDF document text
  • http://ttlh.vn/storage/ckfinder/files/porisojugutuwu.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a14b990db84---dujotulujasatujorava.pdfIn PDF document text
  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a93e1e7ae7e---pomimezorelebobinedizu.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16076d6bc341e5---padodagose.pdfIn PDF document text
  • https://gencshoworganizasyon.com/upload/ckfinder/files/puxezatobad.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/f7ddd92c0538c4a5590b43cdca92c42e/63053420141.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a31edf2d424---73429968136.pdfIn PDF document text
  • https://mmagame.com/userfiles/file/1398287552.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/28064551671.pdfIn PDF document text
  • http://recrute.fr/files/files/xeteg.pdfIn PDF document text
  • https://sts-cct.com/app/webroot/userfiles/files/31764339594.pdfIn PDF document text
  • http://banhangcongnghe.com/upload/FCK/file/zapodebedodatuzejibaxe.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/96705597509.pdfIn PDF document text
  • https://ltanimalpark.com/wp-content/plugins/super-forms/uploads/php/files/b67d718560c4a13ab55e6be80bf2967d/96572001518.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=repair+damaged+pdf+document+onlinePDF 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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