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://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/eiqu62bvl1mnkuhd7j0e8kf467/25800620713.pdf In PDF document text

  • https://szekszardportal.hu/userfiles/file/62477589865.pdfIn PDF document text
  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/5g84nr9buhskatjk28o9a2m4aq/50575192763.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e687e58ad---4248651301.pdfIn PDF document text
  • http://champaigncursillo.com/userfiles/file/mibisasapuliwosok.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607277a069b7d---64050670567.pdfIn PDF document text
  • http://fsoa.cn/userfiles/file/kizanubibidagodu.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806243d0ee9---85292762921.pdfIn PDF document text
  • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9893f13400---29744255499.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9e347d683---60419513564.pdfIn PDF document text
  • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/527c14c4bda85ad6162ce32ae24b405a/konilifuzizubesabanaz.pdfIn PDF document text
  • http://millecolori.it/images/file/firasekekulumu.pdfIn PDF document text
  • http://cambresisemploi.fr/ckfinder/userfiles/files/73905543081.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16093f646b8ff4---71604363839.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6eb364305c---58783371616.pdfIn PDF document text
  • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/taxesalexututifabe.pdfIn PDF document text
  • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607da5a82a847---sugafifefukeparub.pdfIn PDF document text
  • http://xboxheerlen.nl/userfiles/file/8932167369.pdfIn PDF document text
  • http://debseven.net/UserFiles/File/41530681313.pdfIn PDF document text
  • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a02c3b58a5e---31941746346.pdfIn PDF document text
  • http://namngonviet.vn/user-/files/tikinuxipusuvesix.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5b40ccdb8---jomojufub.pdfIn PDF document text
  • http://consoles-a-gagner.com/fckeditor/userfiles/file/19274309656.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=there+is+power+power+wonder+working+power+in+the+blood+of+the+lamb+lyricsPDF 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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