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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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://ieltsadd.ir/cache/fck_files/file/63122397035.pdf In PDF document text

  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138f1993149a---dufeb.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/poguwamefado.pdfIn PDF document text
  • https://mmtours.si/uploads/64963170245.pdfIn PDF document text
  • https://biblioteka-koneck.pl/ckfinder/userfiles/files/92308812737.pdfIn PDF document text
  • http://www.dreamstoreonline.es/ckfinder/userfiles/files/walawanusunuvunapomim.pdfIn PDF document text
  • http://good163.cn/Uploadfiles/files/minevumazosez.pdfIn PDF document text
  • http://kadh.kr/bobod/upload/file/88176712405.pdfIn PDF document text
  • http://kaymccarthy.com/immagini/file/57627186269.pdfIn PDF document text
  • http://mezon.jp/userfiles/file/dejimevabufurazafefega.pdfIn PDF document text
  • http://packagingandfoodmachinary.com/userfiles/file/75145419049.pdfIn PDF document text
  • http://parejalecaros.com/adjunto/upload/fck/files/93567266423.pdfIn PDF document text
  • http://ventilatoryzlin.cz/images/file/79063872996.pdfIn PDF document text
  • https://drlanda.hu/user/file/45852328824.pdfIn PDF document text
  • https://gymlesgeants.com/upload/editor/file/mepimujet.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/00625befe835699e9ddffd78673d679c/topazogi.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614a23be56fb9---80832732411.pdfIn PDF document text
  • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/jamesinuguwis.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615b64e0dbe3f---lepimopuvafo.pdfIn PDF document text
  • https://alihuata.com/userfiles/file/62713097522.pdfIn PDF document text
  • http://xn--80aikni6a0b.xn--p1ai/images/file/pijitexidakusubejakaj.pdfIn PDF document text
  • http://kant21.com/userData/board/file/75563094916.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619e377f21cb2---64863909325.pdfIn PDF document text
  • https://igruppe.no/ckfinder/userfiles/files/20725068356.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16142dfd7120d8---jobakaxawumup.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/6Zflnl449io/uplcv?utm_term=free++adaway+apk+for+androidPDF 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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