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 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://medvor.ru/uplcv?utm_term=one+and+a+half PDF link annotation

  • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/7fc7ba326f9e298d3fecce87f3f534e4/31850973395.pdfIn PDF document text
  • http://hongphuc.vn/userfiles/file/28007352522.pdfIn PDF document text
  • https://actor-conseil.com/files/file/tugagujoxewaf.pdfIn PDF document text
  • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/41a6ee2b4308b9430979102ab0250c26/79208062595.pdfIn PDF document text
  • https://gastriklandsbf.se/UserFiles/files/57743058922.pdfIn PDF document text
  • https://dietacud.eu/upload/file/24560298867.pdfIn PDF document text
  • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608882c74d1a4---72384801543.pdfIn PDF document text
  • http://cck-brno.cz/ckfinder/userfiles/files/viwaluteroxonalefujabajok.pdfIn PDF document text
  • http://netdepphunu.vn/images/userfiles/file/568984063.pdfIn PDF document text
  • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/f38dafca7de31c9468408042d2bad674/pajowizego.pdfIn PDF document text
  • http://hvpeds.com/upload/contents/file/7563862787.pdfIn PDF document text
  • http://gdgom.com/upload/file/2107140517083674790gc0p59usflp.pdfIn PDF document text
  • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/a3843ab83554c6018b645351ecb47588/zitokudekemajiw.pdfIn PDF document text
  • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160760750ee2ce---18653939878.pdfIn PDF document text
  • http://geotersrl.it/file/nupituvevupubukakuze.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a02c76d782c---fusulu.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbde159d823---76363953731.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac91cb6e2e9---33547689624.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nosazepilenemuleti.pdfIn PDF document text
  • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608528af372be---92961465975.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfeeed4651---xaritomuk.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/35102205559.pdfIn PDF document text
  • http://akicgiyim.com/userfiles/file/28527039778.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b793bd14d1b---karoxug.pdfIn PDF document text
  • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/f55d9473df84321580836e3d3513ff28/65143619512.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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