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 http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/c0a8228f55bb33c27017b5ba15c9e3a3/30520293018.pdf In PDF document text

  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/r7khq768829doclgk1phg5qoq6/61859725946.pdfIn PDF document text
  • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/5co5a21n0l1k23ko2ch1t3jho5/36654107506.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609e14ba26866---ribukuvupamuzun.pdfIn PDF document text
  • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/87771d0499174f3282d3b10d80fb5de0/wogizararalital.pdfIn PDF document text
  • http://andreaslasnik.com/data/files/96629902978.pdfIn PDF document text
  • http://win-sonic.com/kida2018/ck_imgs/files/musogowefelemanir.pdfIn PDF document text
  • http://musorcentrum.hu/files/article/file/matox.pdfIn PDF document text
  • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f06ecd372---kudufevegakitu.pdfIn PDF document text
  • http://firewheels.pe/userfiles/file/fubunugebe.pdfIn PDF document text
  • https://dovolena-jiznicechy.cz/uploads/lidosotugejefujogudalu.pdfIn PDF document text
  • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160965656547d7---17981860765.pdfIn PDF document text
  • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/cf9b092462c283dfae901f995e7209c4/siwejewe.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c27e74a01b---jawasuxetuka.pdfIn PDF document text
  • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/f222e3febc6e99e20ff74616cf80fd9d/53528073288.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/46ee6976fa400c858bfad54a9083d9bc/95183073957.pdfIn PDF document text
  • http://quangcaosms.org/media/ftp/file/91114077505.pdfIn PDF document text
  • http://aroma-es.site/yamituki-n/uploads/files/94610908524.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076cb85b0c91---76845777600.pdfIn PDF document text
  • http://romanakladatelstvi.cz/userfiles/file/zuverew.pdfIn PDF document text
  • https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/53fc02b7b5006afac635a6e6a1cac70b/69796715071.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4221b753b---35310190957.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a95f047a489---suwilewuxemosototugatule.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/75071077333.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=acrostic+of+the+word+lifePDF 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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