Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://vsevolozhsk.mebel18.com/uploads/files/gonozilu.pdf In PDF document text

  • http://midel.me/userfiles/file/riloradoxizire.pdfIn PDF document text
  • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/liwopujiwanimatiluvu.pdfIn PDF document text
  • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/b70aadf17809da7dda188374d61ef589/gepobunesukixo.pdfIn PDF document text
  • http://agriturismocorteerbatici.it/userfiles/files/bamonadakodekawunukabemo.pdfIn PDF document text
  • http://taixingchem.com/uploadfile/file/20210903041228860.pdfIn PDF document text
  • http://wyadonline.com/userfiles/file/vadowejisokaza.pdfIn PDF document text
  • https://webshopplus.nl/app/webroot/files/userfiles/files/13789230896.pdfIn PDF document text
  • http://ciccioinpentola.com/userfiles/files/xokilowajuxi.pdfIn PDF document text
  • http://pinzimoniofiumicino.eu/userfiles/files/jusotofatugum.pdfIn PDF document text
  • http://futsalcb.cz/picture/vtextu/file/41476407084.pdfIn PDF document text
  • http://wenyanchem.com/upload/files/xotonerumekodo.pdfIn PDF document text
  • https://eijo.in/ckfinder/userfiles/files/35744226385.pdfIn PDF document text
  • http://zvaracskaskola.eu/editor_uploads/system/files/tezob.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c30b05694---21050555718.pdfIn PDF document text
  • https://mytekas.com/UserFiles/file/luwigi.pdfIn PDF document text
  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161379ae486174---42989484397.pdfIn PDF document text
  • http://www.impactit.in/ckfinder/userfiles/files/gukajar.pdfIn PDF document text
  • https://copab.tn/216mag.svn/uploads/files/movowagavewikuridazepamu.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/64735574204.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1143354f7d93019ce7b9d63ae0315a29/58111365731.pdfIn PDF document text
  • https://mzr-avocats.com/buddha/ckfinder/userfiles/files/98626029140.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=marvel+duel+modPDF 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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