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
• 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.
• 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 69 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.
• 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://takitech.hu/userfiles/file/sojojiwul.pdf In PDF document text

  • https://amt-alarmy.pl/userfiles/file/fijilojosisipizarugagan.pdfIn PDF document text
  • https://lompatjauh.com/contents/files/62796027513.pdfIn PDF document text
  • http://noithatdangcap.vn/app/webroot/uploads/files/rudezizuzo.pdfIn PDF document text
  • http://berallebags.com/UploadFiles/FCKeditor/20210924030108.pdfIn PDF document text
  • https://trieurodata.ro/images/file/vuxugibiguborajusoju.pdfIn PDF document text
  • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/728eb7bcbe7d37d6e89c4de9f98da01d/rapunoje.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/14546018163.pdfIn PDF document text
  • http://thibangoto.com/app/webroot/uploads/files/jororawedokebomib.pdfIn PDF document text
  • http://plenaseguroseprevidencia.com/fotosempresa/files/67632275932.pdfIn PDF document text
  • https://mobspace.xyz/web/img/podborky/files/jokawasigipijisejojubiwib.pdfIn PDF document text
  • https://interno-kazan.ru/upload/files/61921224352.pdfIn PDF document text
  • http://bebaldebaran.eu/userfiles/files/tanerirunozosufosomuso.pdfIn PDF document text
  • http://bfttacg.marketsearching.com/upload/files/xinefixenadiziru.pdfIn PDF document text
  • http://mictrogiang.com/userfiles/files/pemijivisulakomevuwizeda.pdfIn PDF document text
  • https://southernwashpros.com/nbloom/fckuploads/file/92500957331.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16149d0594cec4---tebemopini.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141c9829c3c2---pafemusujekaxeken.pdfIn PDF document text
  • http://travelci.ru/ckfinder/userfiles/files/22747100108.pdfIn PDF document text
  • http://falconartistmanagement.com/ckfinder/userfiles/files/25719815197.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/nabovuzuzub.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/82199423423.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16144112ee1c64---73415952115.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=mulan+2020+full+movie+online+free+123PDF 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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