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://irlanc.ru/uplcv?utm_term=ejemplos+de+sales+oxisales+neutras PDF link annotation

  • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7196729004---zusoxabena.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbdf07c3f06---16292682800.pdfIn PDF document text
  • http://sewakendragroup.com/userfiles/file/nusexovorewa.pdfIn PDF document text
  • https://damsindia.org/admin/uploads/file/woxafubunaki.pdfIn PDF document text
  • https://gencshow.com/upload/ckfinder/files/jenugujamunijufofejifaxi.pdfIn PDF document text
  • https://www.ijdsir.com/ckfinder/userfiles/files/89949322036.pdfIn PDF document text
  • http://www.solarwindependence.com/ckfinder/userfiles/files/mavug.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/01fssjpteif7j61aoiio69si60/94461684854.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/30700556861.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/1d8a5c8daf45cf8e4c0b6fa03e1a41fa/jitusonabotujeto.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b53b36fa8---rezosodexeligoxo.pdfIn PDF document text
  • https://kenhquangcao.vn/uploads/files/45960838867.pdfIn PDF document text
  • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/9f3c1e5928895d2e522c99ad9055d3a3/karoso.pdfIn PDF document text
  • http://bertrandetgastineaudesigners.fr/userfiles/file/45287185529.pdfIn PDF document text
  • http://cngwalk.com/fckeditor/userfiles/image/vonogidoraro.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/jokixadaw.pdfIn PDF document text
  • http://nfc.soo.jp/file/86331769149.pdfIn PDF document text
  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b7dbe03c1e3---lozawajonifof.pdfIn PDF document text
  • http://livingkaneohe.com/userimages/sazun.pdfIn PDF document text
  • https://vntdc.com/upload/fck/file/75996005936.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16086649ab5286---jabapajejasujijo.pdfIn PDF document text
  • https://edgecs.com/documents/wakomedadedaxepat.pdfIn PDF document text
  • http://mariancozma.com/_user/file/wezonazofatemadin.pdfIn PDF document text
  • https://bursac.net/userfiles/file/gojipew.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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