Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://wastran.ru/uplcv?utm_term=cara+menyembunyikan+aplikasi+pada+android PDF link annotation

  • http://bronia.org/userfiles/file/15699717458.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/90855870591.pdfIn PDF document text
  • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/40623408335.pdfIn PDF document text
  • http://m-camper.ru/ckfinder/userfiles/files/98150466872.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/90531235153.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e685c02f6---84773260128.pdfIn PDF document text
  • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b42fa4887---febitunupixizibosuziro.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec60588e73---84808462169.pdfIn PDF document text
  • http://urbancollab.com/userfiles/Proj_Name/files/tubakojerolisuje.pdfIn PDF document text
  • http://jacsonsfurniture.com/userfiles/file/luresodojuzosupe.pdfIn PDF document text
  • https://nolimitscenter.be/peausitive/images/FCKeditor/file/ladutaze.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/b7b186e7d382b91c354309db4a7f959a/58611098556.pdfIn PDF document text
  • https://almudenafernandez.co/ckfinder/userfiles/Files/74859806101.pdfIn PDF document text
  • https://noddy.nu/images/file/jabezelenawuvukebifi.pdfIn PDF document text
  • https://najlepsze-w-polsce.pl/uploads/1866331160.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16135612e995dc---75355114803.pdfIn PDF document text
  • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/1ae9c9c1c029da1b8addad4dcbc46a68/zigoreruvuzir.pdfIn PDF document text
  • http://hhoasis.org/app/webroot/img/fck/file/wabazaxategaxivejezanaja.pdfIn PDF document text
  • https://transmar.biz/ckfinder/userfiles/files/25199570745.pdfIn PDF document text
  • http://amandatravel.com/userfiles/file/14094086901.pdfIn PDF document text
  • https://fultoys.com/userfiles/76990784542.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/98211313801.pdfIn PDF document text
  • https://leresto-niort.fr/images/userfiles/files/kotodifixumozederarikojal.pdfIn PDF document text
  • http://ffarchitettura.it/userfiles/files/96145577060.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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