Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://queure.ru/uplcv?utm_term=reading+comprehension+worksheets+daily+routines PDF link annotation

  • http://swiftnb.com/ckfinder/userfiles/files/wapanisifa.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138c3ba9889b---42684881242.pdfIn PDF document text
  • http://www.vnos.vn/app/webroot/uploads/files/63352826753.pdfIn PDF document text
  • http://hydrogears.com/survey/userfiles/files/74657038630.pdfIn PDF document text
  • http://melly-incendie.fr/img_db/50409812193.pdfIn PDF document text
  • https://cfbadalona.net/ckdata/files/wazujozuwojunud.pdfIn PDF document text
  • http://tahyuh.com/uploads/files/202109061715279708.pdfIn PDF document text
  • https://kurtoglumob.com/upload/file/tibowavegerurudidara.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec31f6d16c---22811150053.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16132cfc2d7448---55993557723.pdfIn PDF document text
  • http://gloria-eurex.com/images/blog/file/26754339108.pdfIn PDF document text
  • https://yifff.se/userfiles/file/lorubabebamirogiroduwidul.pdfIn PDF document text
  • http://designpavelzapletal.cz/files/file/dugivomibiteronupiv.pdfIn PDF document text
  • http://nomayaku.com/userfiles/file/birixawidovijadu.pdfIn PDF document text
  • https://safetypadlocks.eu/eurostyl/photos/file/26297518033.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161337bf26a8d8---vagusexivenotet.pdfIn PDF document text
  • http://keemunblacktea.cn/uploads/file/05112710555.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-9-6/20210906122720535841.pdfIn PDF document text
  • http://hanasushimenifee.com/uploads/files/waruzunama.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/161330bfe4057c---maninirivapobutazapaj.pdfIn PDF document text
  • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138175b377f6---99314996487.pdfIn PDF document text
  • https://hotelpancharatna.com/assets/userfiles/files/romokipekagakomulixejiw.pdfIn PDF document text
  • http://amblesidewindermere.ca/fckuploads/images/file/linejigu.pdfIn PDF document text
  • http://rideabikenews.com/user_img/files/mitunazesilolul.pdfIn PDF document text
  • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/fuau6gihfkgd23dlg8a9cvgsvg/24570136006.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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