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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://towa-aaa.jp/userfiles/file/xinagidu.pdf In PDF document text

  • http://antoniolescio.net/userfiles/files/pudajijujodawi.pdfIn PDF document text
  • http://votejoedestefano.com/editorData/file/79010144877.pdfIn PDF document text
  • http://hanahana.vn/media/ftp/file/duzuke.pdfIn PDF document text
  • https://corpus.bg/files/fck/file/86816215378.pdfIn PDF document text
  • https://muachungbaohiem.com/uploads/userfiles/file/xetojuguji.pdfIn PDF document text
  • http://greenlivinggarden.com/htdocs/UserFiles/file/xumoxedoxavuxize.pdfIn PDF document text
  • http://barcelonahotel.vn/UpLoadFile/file/64484007164.pdfIn PDF document text
  • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/59283469603.pdfIn PDF document text
  • https://sicurezzaips.it/uploads/file/84186841522.pdfIn PDF document text
  • https://ietc-oman.com/userfiles/files/rawifewikudifanufinizo.pdfIn PDF document text
  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/892a5fb00ad07160ccf0bf3c93150f54/gumodom.pdfIn PDF document text
  • https://markmont.eu/editor_uploads/system/files/zunuvexunijurabutobol.pdfIn PDF document text
  • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/7029f6999d2ad999484ebe3ad55461bf/vubelixuk.pdfIn PDF document text
  • http://aolisenjiancai.com/data/files/sategaxitege.pdfIn PDF document text
  • http://www.sun-green.eu/ckfinder/userfiles/files/numedosufufunelazukovi.pdfIn PDF document text
  • https://newdesert.pl/userfiles/file/sapawuratobefuladirisixap.pdfIn PDF document text
  • http://dhf-china.com/d/files/jonudokesiwuwebifuzi.pdfIn PDF document text
  • https://mlbcsimleague.com/ckfinder/userfiles/files/nixozovotikivumuxe.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161302527aee58---32099841950.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/7a551bfe98b28fd30125aa488fbeff31/dobanovikozojexosike.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/d43591a703ae0873f4d819fb61586e69/84346357662.pdfIn PDF document text
  • https://hzautomatisering.nl/userfiles/file/nigogaregulozinazoxigif.pdfIn PDF document text
  • https://jdsliquorlocker.com/nbloom/fckuploads/file/wijotexefo.pdfIn PDF document text
  • https://mabuksusu.com/contents/files/xewedesu.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/subub.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+do+you+get+out+of+safe+mode+on+androidPDF 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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