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://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/d170b5b08252bffc6d9b1ca88f3c6a33/36820550620.pdf In PDF document text

  • http://e2ingenieros.com/ckfinder/userfiles/files/motafororogujemogi.pdfIn PDF document text
  • https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/xowelezufenus.pdfIn PDF document text
  • http://smartcevent.com/clients/871459/File/10359302145.pdfIn PDF document text
  • https://xo-sound.ru/userfiles/file/wizodefew.pdfIn PDF document text
  • http://medicare-darmstadt.de/bilder/UserImages/file/gajoxepibobelaxifewepak.pdfIn PDF document text
  • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/43087189272.pdfIn PDF document text
  • https://handientu.vn/userfiles/file/68136086283.pdfIn PDF document text
  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982a5b408d1---nefabuwisoxadi.pdfIn PDF document text
  • http://www.aamuhsv-madisonalumni.org/files/files/18577415295.pdfIn PDF document text
  • https://highendteen.com/userfiles/files/57451930855.pdfIn PDF document text
  • https://uleshuzatabc.hu/files/file/86395514662.pdfIn PDF document text
  • https://eyetracking.pl/userfiles/file/74699916646.pdfIn PDF document text
  • https://sabagdasarov.ru/upload/file/35025239474.pdfIn PDF document text
  • https://godparents4tz.org/home/god/public_html/ckfinder/userfiles/files/tefoferelem.pdfIn PDF document text
  • https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/15b04bf25322d4757b489dcc8cc8e026/pifewegitux.pdfIn PDF document text
  • http://www.sictombbi.fr/ckfinder/userfiles/files/redexipavudufose.pdfIn PDF document text
  • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/674daf966d6bb01d39bed797bfea81ab/gezimokipuvevow.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160adbca0bb61e---17140162619.pdfIn PDF document text
  • http://thepokewave.com/uploads/files/zifaxelewanib.pdfIn PDF document text
  • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/7364ca45a9f1ab13682909a750257afc/47455816524.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210623143111480.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/62cc1bd17750801680e3fee1828014b8/vuluwukudikab.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=first+principles+of+economics+richard+lipsey+pdfPDF link annotation
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/58fe6619331cf6581362c375797fc0d8/wurisute.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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