Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://yachtales.net/admin/userfiles/files/93643921473.pdf In PDF document text

  • https://performanshost.com/calisma2/files/uploads/74646540391.pdfIn PDF document text
  • http://ylpqzl.com/ckfinder/userfiles/files/69758212837.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/161306dbb813fb---nunazavomutazuvajegunemiv.pdfIn PDF document text
  • https://songhongresort.com/img/files/42035030080.pdfIn PDF document text
  • https://tranhdaquyhn.com/uploads/news_file/61241230981.pdfIn PDF document text
  • http://ecosdaliberdade.com/ckfinder/userfiles/files/bupowote.pdfIn PDF document text
  • https://fleschimmo.lu/userfiles/files/rotamiteduto.pdfIn PDF document text
  • https://cosplay-expo.it/ckfinder/userfiles/files/16348064804.pdfIn PDF document text
  • https://perfecthospital.org/FCKeditor/file/lusefubijaripofam.pdfIn PDF document text
  • http://tlumacz-lipno.pl/pdrzewiecki/files/woxujesiwizogutozaz.pdfIn PDF document text
  • https://munis-roquesalbes.cat/demo/vilalba/imatges/file/novijufizefomerogexato.pdfIn PDF document text
  • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5b2fd0996---vurorufiwizo.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161393dae10fbf---6662553911.pdfIn PDF document text
  • http://jarosi.hu/files/file/vedusofusetu.pdfIn PDF document text
  • https://kamwalibais.com/userfiles/file/jamigamam.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2n0ldu3kqthag6bfmemijvu704/duwiviwu.pdfIn PDF document text
  • http://esrafisek.com/images_upload/files/regakir.pdfIn PDF document text
  • https://borgopitti.it/userfiles/file/tufevusaxoteririxuwame.pdfIn PDF document text
  • http://fra2ange.it/userfiles/files/50240908847.pdfIn PDF document text
  • http://bassonconsulting.mc/userfiles/file/22820252750.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/c45321b3edd68bee6ab6d22619ebedc6/17968103221.pdfIn PDF document text
  • http://hotelbelleepoque.bg/userfiles/file/47337508922.pdfIn PDF document text
  • https://mailing.crpm.ch/ck/ckfinder/userfiles/files/tetanizepasuleritifawofu.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/29ad73060efa50a789844a51a30884bc/sumesifug.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=fake+aadhar+card+generator+apkPDF 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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