Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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=android+outlook+pop3+settings PDF link annotation

  • http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/damelewit.pdfIn PDF document text
  • https://kerryparsonsfoundation.org/media/file/13711386186.pdfIn PDF document text
  • https://neurondevelopment.org/userfiles/file/94438805402.pdfIn PDF document text
  • https://cpc-serbia.org/js/files/bezebovi.pdfIn PDF document text
  • https://synersys.fr/contenu/file/luwalikadaxon.pdfIn PDF document text
  • http://tonwen.org/userfiles/file/79710873585.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16137bad3e692c---34787750533.pdfIn PDF document text
  • http://temple.mo/userfiles/file/25010312208.pdfIn PDF document text
  • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/76cf38a024b180da1bd39d8c36f59007/14913223694.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nl3ncjsj5p5kqm7dsrnbqp1ki3/92423804194.pdfIn PDF document text
  • http://cross-winds.in/upload/contents/images/images/13668070825.pdfIn PDF document text
  • https://szallas-karpatalja.net/upload/kanuginap.pdfIn PDF document text
  • https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/94239492680.pdfIn PDF document text
  • https://tidurmalam2.com/contents/files/bobetapujokimanufebup.pdfIn PDF document text
  • http://alhambra.kopanramen.com/uploads/files/vawonevemisiserebove.pdfIn PDF document text
  • http://asqcert.net/files/files/75583427742.pdfIn PDF document text
  • http://studioguagnoni.it/userfiles/files/midaboze.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16139299733500---31920875790.pdfIn PDF document text
  • http://neurooperations.com/ckfinder/userfiles/files/66614019401.pdfIn PDF document text
  • https://machnhaduong.com/images/uploads/files/fexoxaror.pdfIn PDF document text
  • http://museodegliarazzimarsala.com/userfiles/files/71173770706.pdfIn PDF document text
  • http://dtyxbpzx.com/filespath/files/20210907011406.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7a891bd0a---31387662696.pdfIn PDF document text
  • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161336d9333c8c---jokiwuzi.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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