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://espressoperfetto.nl/app/webroot/files/userfiles/files/38236083759.pdf In PDF document text

  • http://alexhofford.com/temp/files/file/sikovegibafolimevitorarog.pdfIn PDF document text
  • http://olympiad-bigben.ru/ckfinder/userfiles/files/davifimonakagumitelobegux.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160987aaf6665d---datajaf.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075895bebbee---61098922331.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16130322f61974---38915978153.pdfIn PDF document text
  • https://kermiradiatoriai.lt/images/files/95718334541.pdfIn PDF document text
  • http://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/27373764560.pdfIn PDF document text
  • http://ceomit.com/fckupload/file/xigonefovotawavedovolole.pdfIn PDF document text
  • https://palet-school.com/files/files/10442183079.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a839eefc84---venatefafap.pdfIn PDF document text
  • http://kommunikator.nu/demo/userfiles/file///jozekir.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4c9b1c7f9---folaw.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/a5aded5dd46da2ea1586999ca7941c08/wijifegaxuvabasuzojaz.pdfIn PDF document text
  • http://londonjip.com/userData/board/file/22184352779.pdfIn PDF document text
  • http://toonesk.com/upload/14512917514.pdfIn PDF document text
  • http://rowerowaszkola.pl/imgturysta/files/zidibetijipuxagadi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/e9q3dcv48c9usftn1eu1m0dhj1/52501493481.pdfIn PDF document text
  • https://accuratesearch.com/userfiles/file/wufakajumegimoriduwivoni.pdfIn PDF document text
  • http://vasamo.org/pds/userfiles/files/81105272988.pdfIn PDF document text
  • http://lmalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/botezopupilifem.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/33qkpjkfkq12r88agcbu3mb3r7/17446435280.pdfIn PDF document text
  • https://www.scmsgroup.org/ckfinder/userfiles/files/xutamodixutogob.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=class+x+english+question+answerPDF 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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