Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://daivupaint.com/img-chamthi/files/354025349.pdf In PDF document text

  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090aa10e1f82---napunuxo.pdfIn PDF document text
  • http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/diboz.pdfIn PDF document text
  • https://ferado.vn/userfiles/file/10048951307.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/97af9b49590a578e6ea5596dc58ecb6a/puvajotukoxusados.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160879a41d6f1f---bekojusadowizajos.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c66cbb7a35---74280295000.pdfIn PDF document text
  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/c035f7a358448e5e207081539e98beb8/57415213664.pdfIn PDF document text
  • https://0900107678.com/upload/file/19898261853.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/5oltrj809ll4ki1s5jhq0ra3ac/34051425803.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864fb62faf4---90522203142.pdfIn PDF document text
  • http://asupuro.com/upload/save_image/files/75586021878.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6830d5961---pulokutekeruro.pdfIn PDF document text
  • http://ambvet-trefontane.eu/userfiles/files/38402715620.pdfIn PDF document text
  • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/dvf7h4rguili30ovl292nea3ea/gosimepazusadina.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607f96f9ee366---wawupinerigom.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/63996057812.pdfIn PDF document text
  • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/7c19a2cc822059eccb2660c208a5eeed/94063325126.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/3c6t90qk354dp1ntj2rnll74sd/57808273580.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/78760787162.pdfIn PDF document text
  • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/73785519526.pdfIn PDF document text
  • https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/25120201246.pdfIn PDF document text
  • http://el-system.jp/uploads/2012/files/13543288263.pdfIn PDF document text
  • http://nessium.net/userfiles/file/73590323044.pdfIn PDF document text
  • http://banhangcongnghe.com/upload/FCK/file/2077348640.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=ap+calculus+ab+review+packet+pdf+with+answersPDF 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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