Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://pistant.ru/uplcv?utm_term=mensuration+formula+in+tamil+pdf PDF link annotation

  • https://rsvforum.com/userfiles/file/19281232794.pdfIn PDF document text
  • http://iphysiology.ru/upload/juvizebamukaramogukaf.pdfIn PDF document text
  • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/en7nbij50kfaqrkat6lp45qe6h/7297411268.pdfIn PDF document text
  • http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/58148954454.pdfIn PDF document text
  • https://www.qualityitalia.it/ckfinder/userfiles/files/vekera.pdfIn PDF document text
  • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1607974719aeff---tujinulujopifeguninomid.pdfIn PDF document text
  • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87839419164.pdfIn PDF document text
  • http://mega.kz/media/upload/files/25168967828.pdfIn PDF document text
  • http://cedarvalekansas.com/clients/875954/File/51682351750.pdfIn PDF document text
  • http://uk-finansist.ru/userfiles/file/bizubivoveve.pdfIn PDF document text
  • https://arnetbilgisayar.com/upload/ckfinder/files/95016814667.pdfIn PDF document text
  • http://4x4autok.hu/userfiles/files/29122145143.pdfIn PDF document text
  • http://nbkhjc.com/uploads/202108/file/210809111840693351oizop7uopd4a.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/t7dmner34mjgomvuja9f49qoc8/69585363862.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/pdsv8g1hdukp9iac4cu49eutjc/juporotazugeb.pdfIn PDF document text
  • http://fst-uinsu.net/userfiles/files/7708814560.pdfIn PDF document text
  • http://paulsaperstein.com/userfiles/files/83117428752.pdfIn PDF document text
  • http://ukicda.com/admin/fckeditor_upfiles/file/2021070710511980554.pdfIn PDF document text
  • https://hung168.tw/UserFiles/files/sifal.pdfIn PDF document text
  • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/2nr005cbctdjaog9jfh8qmncct/66869626418.pdfIn PDF document text
  • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083909a8f6d6---rixutebipido.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160abd52369ba8---buwagi.pdfIn PDF document text
  • http://koreaseowon.com/ckupload/files/dagogoditufivok.pdfIn PDF document text
  • https://euroroma-bg.org/files/file/lujoboxivololomedesil.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/qlijaop6igv6k98sfbc7307rt3/12445163139.pdfIn PDF document text
  • http://pcccphucvinh.com/upload/files/rajenurepebelil.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/d9360c1e7488a04592c6d8dc71dd2bd9/fuvonatoduxabemisezodu.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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