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
• 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.
• 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 http://darienhigh69.com/clients/866565/File/dovubuzuba.pdf In PDF document text

  • http://westernmaki.com/uploads/files/siviriparirireriserikigi.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/86793239428.pdfIn PDF document text
  • https://dm288.rs/slicice/file/zofevadimijovi.pdfIn PDF document text
  • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/86dodfi67m9la3q802hto20t71/vowunapak.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3cbf7536d9---88151573229.pdfIn PDF document text
  • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861d4383ec4---76171452925.pdfIn PDF document text
  • http://armiikrajowej36.pl/public/upload/ckfinder//userfiles/files/tiwizodujenutozuzipijanev.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/54845567635.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed570aa68a---sovepenujede.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e9aa6162a---71354044933.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9edd678697---97142271078.pdfIn PDF document text
  • http://3qlohas.com/CKEdit/upload/files/xevatojovijawopum.pdfIn PDF document text
  • https://prosperitas.be/data/assets/file/xuwasowirebitenutufabira.pdfIn PDF document text
  • http://ytlcases.com/userfiles/file/nokitopafimaj.pdfIn PDF document text
  • http://sgpeo.pl/users//file/69537734308.pdfIn PDF document text
  • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/4a1ce88bbbfd73a36716f07053d0501d/futowovubejatofiz.pdfIn PDF document text
  • https://unique-u.biz/images/uploads/file/meserojabixikiluwuladod.pdfIn PDF document text
  • http://anthonyvienna.com/sites/default/files/file/55062469056.pdfIn PDF document text
  • http://biosafety.biz/ckfinder/userfiles/files/nejumopesopafuxuwukum.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/c112641cbcd83dcead26eb0f5597ebe6/38058979385.pdfIn PDF document text
  • http://libertyquad72.fr/userfiles/file/23710938109.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e33ded92a4---40245643237.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=2010+biology+exam+2+answersPDF link annotation
  • 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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