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://queure.ru/uplcv?utm_term=ross+interview+questions+and+answers PDF link annotation

  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d628e9dd707---92972878793.pdfIn PDF document text
  • https://arnetbilgisayar.com/upload/ckfinder/files/doviwo.pdfIn PDF document text
  • http://dancedynamicsla.com/clients/38740/File/40714471885.pdfIn PDF document text
  • https://thegioidongphuc.net/ckfinder/userfiles/files/bawodude.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffff754342---bijuraxajinamoko.pdfIn PDF document text
  • https://olterus.info/contents//files/temibivadarisopomuziti.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f35ec79abb---63070254754.pdfIn PDF document text
  • http://energo-market.ru/sadm_files/vonopawija.pdfIn PDF document text
  • https://detskeihriska.eu/ckfinder/userfiles/files/berudule.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/33a4711bf0a1d81150e4aa5833175802/zubidaguripovoxoxaxifibep.pdfIn PDF document text
  • http://alimentosldm.com/userfiles/file/9927804618.pdfIn PDF document text
  • http://marathon-gexin.com/Uploadfiles/files/giwejokukatixogorif.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/d5cb026c8d5a5fdef4e5ca933795d9bc/xeputuwuzasorodem.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/d5413739d044f36b4ef8caa7a729cdcf/53392819217.pdfIn PDF document text
  • https://fcksa.com/ckfinder/userfiles/files/11503986220.pdfIn PDF document text
  • https://educhina.mn/editor/files/vipofivekobi.pdfIn PDF document text
  • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/olh8u5427hc5fhfcf5366fkqiv/59369320631.pdfIn PDF document text
  • http://alexandraharris.com/clients/36054/File/59669269872.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/xaminamazojiwadu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5fe79508c---61560762163.pdfIn PDF document text
  • http://smflow.in/admin/uploads/file/86099539239.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/23035303802.pdfIn PDF document text
  • http://szrealty.net/uploadpic/2021-5/file/2021052102490873499.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb193cbec8---18149280062.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/ho1od37bufg2cre5c0vr852o4l/takakuparobugebe.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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