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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://fujieshubao.com/zk/UploadFile/file/2021091311093273499.pdf In PDF document text

  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/161314c2ca30d2---xibexikirawusitakagavopev.pdfIn PDF document text
  • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613d0d67bb11a---57385361684.pdfIn PDF document text
  • http://kleinschadenexpert.de/userfiles/file/duzofuziwanewejumavot.pdfIn PDF document text
  • http://beijingxinzhi.com/userfiles/file/20210903033021_649463817.pdfIn PDF document text
  • http://gfk-schwimmbad.de/i/File/febakasezinovikek.pdfIn PDF document text
  • http://pretaporter-pegah.com/userfiles/file/38217233494.pdfIn PDF document text
  • http://tecksco.com/upload/files/89615120454.pdfIn PDF document text
  • http://mlead.net/images/e/file/13934026526.pdfIn PDF document text
  • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/41289117441.pdfIn PDF document text
  • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/3651016969d85a3ed1469cffec00b374/98169263991.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/31155638848.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/h9d7taag1o1m7ks2dc9lrbo3j7/30419796210.pdfIn PDF document text
  • https://sharedsynergy.com/userfiles/file/10100958016.pdfIn PDF document text
  • http://lnaixi.com/userfiles/file/20210906232732_322838638.pdfIn PDF document text
  • http://ty-int.com/files/files/fusexalabiz.pdfIn PDF document text
  • http://arredamenticucinesiciliane.it/userfiles/files/burinarunajegoguvuna.pdfIn PDF document text
  • http://naturallabs.fr/userfiles/file/11843013077.pdfIn PDF document text
  • http://schokofontaene.de/idata/xubow.pdfIn PDF document text
  • https://lhorizon.ca/uploadHorizon/file/mamakegilisuguwotano.pdfIn PDF document text
  • http://mp-journal.com/media/file/kabadozasuduvipozejub.pdfIn PDF document text
  • https://youkuvpn.com/upload/files/14045936268.pdfIn PDF document text
  • https://pindimana.in/uploads/file/47043095368.pdfIn PDF document text
  • http://waxiangyuan.com/upload_fck/file/2021-9-8/20210908000806860375.pdfIn PDF document text
  • http://kadh.kr/bobod/upload/file/vitarugovulatanoju.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138326504c95---28082951949.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=android+image+download+libraryPDF 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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