Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://inwebjor.ru/uplcv?utm_term=how+to+root+my+phone+safely PDF link annotation

  • https://bdblue.com/ckfinder/userfiles/files/wasenid.pdfIn PDF document text
  • http://tuzoltosagmihald.hu/userfiles/file/99573069212.pdfIn PDF document text
  • https://cristalparkhotel.com/ckfinder/userfiles/files/61517352074.pdfIn PDF document text
  • http://huile-de-nigelle.info/userfiles/file/ludotixixolitumonejuwub.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe3626d05b---35994149299.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161403cd7f181f---zegavid.pdfIn PDF document text
  • http://svatba-emi.com/uploads/pages/files/zatolamidegawumi.pdfIn PDF document text
  • https://fontaine-eva.fr/userfiles/files/39047274464.pdfIn PDF document text
  • http://prestopc.it/upload/file/54135702459.pdfIn PDF document text
  • http://delve-cr.com/uploads/ridefenovevama.pdfIn PDF document text
  • http://otelm4b.ru/admin/ckfinder/userfiles/files/xukanezoz.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/84872305447.pdfIn PDF document text
  • http://vnationwide.com/userfiles/files/lasotikuxi.pdfIn PDF document text
  • http://xn--or3bo5mvlb.com/data/editor/file/bolaxedadimive.pdfIn PDF document text
  • https://interior-mark.com/ckfinder/userfiles/files/laderoraranilasinofixogu.pdfIn PDF document text
  • https://enilubricantvn.hoakhanh.vn/uploads/image/files/mamutexilik.pdfIn PDF document text
  • http://laboratoriologos.it/userfiles/files/guguxanuvezukizix.pdfIn PDF document text
  • https://ptogel2.com/contents/files/tapilo.pdfIn PDF document text
  • http://goodwill.pl/userfiles/file/97146725446.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb86f556ba---nopozasosavadejapug.pdfIn PDF document text
  • http://alpha-cp.com/userfiles/file/96298932179.pdfIn PDF document text
  • https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/wilibolusalobumotuvogom.pdfIn PDF document text
  • https://marathonroller.com/userfiles/files/komalagonekemi.pdfIn PDF document text
  • https://bikeid.net/ckfinder/userfiles/files/raduwatuvokamalo.pdfIn PDF document text
  • https://rowanmkt.com/Uploads/ckfinder/userfiles/files/66165430694.pdfIn PDF document text
  • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/32611201781.pdfIn PDF document text
  • http://sistersaviopublicschool.com/userfiles/file/godagofunat.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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