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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://coretry.ru/uplcv?utm_term=download+orweb+for+android PDF link annotation

  • https://digireg.nu/upload/buvudo.pdfIn PDF document text
  • http://www.zywawiara.pl/pliki/25260236445.pdfIn PDF document text
  • http://lnianemarzenie.pl/userfiles/file/71920649922.pdfIn PDF document text
  • http://gajagotour.com/UserFiles/file/88457983665.pdfIn PDF document text
  • http://weilandensemble.nl/ckfinder/userfiles/files/43076349090.pdfIn PDF document text
  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/405b86facfdef486e18eafbf8c9bdf56/gepuzagexiluzewajorafibef.pdfIn PDF document text
  • https://insinkerator.us/images/uploaded/file/24626416753.pdfIn PDF document text
  • http://ahxxzx.com/userfiles/202109/file/45329657972.pdfIn PDF document text
  • http://dianacb.cz/userfiles/file/wegoxatabawegapumasegi.pdfIn PDF document text
  • https://forumsevens.com/images/file/modewufimile.pdfIn PDF document text
  • http://ideviceplus.be/app/webroot/files/userfiles/files/20347506242.pdfIn PDF document text
  • https://westhigienia.hu/editor_up/pemitukibi.pdfIn PDF document text
  • http://chukysovin.com/img-svc/files/47931820639.pdfIn PDF document text
  • http://izumrud38.com/ckfinder/userfiles/files/sesajogotegopoles.pdfIn PDF document text
  • https://padservhosting.com/userfiles/file/vijajegekemabemumupadedot.pdfIn PDF document text
  • http://tcihk.com/userfiles/tefudegisalasewamuto.pdfIn PDF document text
  • https://adsbudget.net/userfiles/file/sozesiwafoxaxowukezokas.pdfIn PDF document text
  • http://libron.pl/fckupload/assets/file/82765752777.pdfIn PDF document text
  • https://funbugs.ie/userfiles/file/dagimuwetokeminukuri.pdfIn PDF document text
  • http://mjengo.org/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/32500307799.pdfIn PDF document text
  • http://geyikkimya.com/userfiles/upload/file/86825529725.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16141f43fb9654---46266994790.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/0d38942bd385a82dad7dbee06ff18241/77122586694.pdfIn PDF document text
  • http://cpk.by/ckfinder/userfiles/files/52540854815.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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