Malicious PDF — malware analysis report

Heuristics 8

• 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 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://allytemp.ru/uplcv?utm_term=how+to+send+json+data+to+server+in+android+using+retrofit PDF link annotation

  • https://airflow-skateboards.com/userfiles/files/kadomadamujabazapalebet.pdfIn PDF document text
  • http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/41147602426.pdfIn PDF document text
  • http://skipjackpoke.com/ckfinder/userfiles/files/sizalovadegerobokuwi.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/70244717678.pdfIn PDF document text
  • https://marcvandewiele.com/userfiles/file/dalanirakakomovem.pdfIn PDF document text
  • https://seerupit.dk/assens/file/12566833970.pdfIn PDF document text
  • http://makassitools.com/userfiles/file///71589445165.pdfIn PDF document text
  • http://pincesorvarshop.hu/editor_up/zulofomokojimidox.pdfIn PDF document text
  • https://www.antoniopopolizio.it/ckfinder/userfiles/files/loxevesiroxugovimukotopil.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161437b49a57e0---16361747006.pdfIn PDF document text
  • http://bloodfaces.de/attachment/file/jafarapibapuzoninonexa.pdfIn PDF document text
  • https://ever-progress.com/upload/files/48240326339.pdfIn PDF document text
  • https://living-stone.lu/userfiles/files/xivovu.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16138cecd3ad28---38924201551.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/e8b28f7b4587f0627ad2a7e27015a993/mikofi.pdfIn PDF document text
  • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/rujavofixoreret.pdfIn PDF document text
  • https://intrigantka.ru/images/userfiles/file/kivezupuwilukarutexur.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/89605094033.pdfIn PDF document text
  • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/78131279445.pdfIn PDF document text
  • http://speakingaboutnetworking.com/ckfinder/userfiles/files/xenigozojeduni.pdfIn PDF document text
  • http://salamino.pl/userfiles/file/pavisujivupalofuwowa.pdfIn PDF document text
  • http://kimsanghun.com/upload/userfiles/file/202196754488345.pdfIn PDF document text
  • http://www.gc-antey.ru/ckfinder/userfiles/files/lepidud.pdfIn PDF document text
  • https://chokysitohang.com/Uploads/userfiles/files/38946842122.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16146ac6d10473---62189244320.pdfIn PDF document text
  • http://www.cst.rnu.tn/js/ckfinder/userfiles/files/laguk.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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