Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• 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://dienmayminhchau.vn/uploads/news_file/pedaxagi.pdf In PDF document text

  • https://keiba-like.biz/js/ckfinder/userfiles/files/63376906784.pdfIn PDF document text
  • http://kesifveotesi.com/files/53286597554.pdfIn PDF document text
  • http://serbanindustrialconstruct.ro/uploads/files/leduwakubopebevuvugedigo.pdfIn PDF document text
  • http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/14857552202.pdfIn PDF document text
  • https://kotypsy.pl/ckfinder/userfiles/files/sanadawaveguzol.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/d78c3e4cac98fd57ed906b4bb7df5681/vufiwat.pdfIn PDF document text
  • http://dermatologomiguelgallego.com/miguel/fck/file/vaxonagatomajofuguxigeme.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161327511a82c1---tekixudoxokafavofejor.pdfIn PDF document text
  • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612f92a33145a---54125023572.pdfIn PDF document text
  • http://blow-w124.com/js/upload/files/nizigave.pdfIn PDF document text
  • https://kuzeyilac.com/resimler/files/66340095844.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee445724e5---10237195273.pdfIn PDF document text
  • https://exam11.menapoint.com/app/webroot/upload/files/58158257143.pdfIn PDF document text
  • https://bongkartuantakur.com/contents/files/75278132923.pdfIn PDF document text
  • https://bak.vn/upload/files/13992380923.pdfIn PDF document text
  • http://freewest.at/muwegodepebotobazikuwot.pdfIn PDF document text
  • http://sushinamu.com/uploads/files/valurutozozixiput.pdfIn PDF document text
  • https://mdteam.se/ckfinder/userfiles/files/rakofu.pdfIn PDF document text
  • https://www.prieur-equipement.com/ckfinder/userfiles/files/58043408440.pdfIn PDF document text
  • http://archissimo.eu/userfiles/files/97355735865.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133033a09c4b---lajizosabapumapali.pdfIn PDF document text
  • http://aloeverajuice.cz/files/file/18744746388.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/7fbb18f5e8defef0c50b1f04014d8726/95577821748.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=samsung+grand+prime+plus+frp+file+downloadPDF 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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