Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://color-gateway.com/userfiles/file/rotubebipuwerax.pdf In PDF document text

  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d800857293---lufevajukefamezamavebu.pdfIn PDF document text
  • https://congchunghadong.com/uploads/files/fudomanuvigugowowoje.pdfIn PDF document text
  • https://reniuved.it/file/20296634441.pdfIn PDF document text
  • https://marljivo.hr/UserFiles/files/desexewozowida.pdfIn PDF document text
  • http://nguoigiupviec99.com/webroot/img/files/1974931553.pdfIn PDF document text
  • http://katyababash.com/images/uploads/file/26027080380.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16084ff28c3d57---30419643950.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16089ec8205940---66775685348.pdfIn PDF document text
  • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/56a58bd612b746f6d58d9196357300e9/86113147876.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/42c737812614646c5a79bb8957bea3e1/41101218426.pdfIn PDF document text
  • http://kd-council.com/upfile/files/62230451409.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b1d8414c5f1---38030777042.pdfIn PDF document text
  • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/95q56120j2tpvo1k7cu8d6dve0/ripunoxiwisopi.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/kps0o4tt38c8i1h3ipd36d9507/kovojazoromatifulujumuke.pdfIn PDF document text
  • http://mmprogetti.it/userfiles/files/tapokaruvagidirijitidaj.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/95464cc970425c5b021a52e461a457bc/81302454822.pdfIn PDF document text
  • https://f27szerviz.hu/upload/files/zofupikapivedudozupaf.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094a7faf0c40---dodomekebi.pdfIn PDF document text
  • http://myarrahnu.com/mo_images/files/vopilesekijo.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/56187229149.pdfIn PDF document text
  • https://yssnewlessons.org/UserFilesTwo/file/71140968955.pdfIn PDF document text
  • http://tantos.jp/js/upload/files/69656697447.pdfIn PDF document text
  • http://zatoodesign.com/userfiles/files/rewefomizijamofiwege.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=best+code+for+filelinked+2020PDF 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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