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 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://inwebjor.ru/uplcv?utm_term=mcq+friction+class+8 PDF link annotation

  • http://qbcar.ru/ckfinder/userfiles/files/wetikarugitubesoxopiwor.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/5670fd39a1d6c7a3e785cf6c75df1daf/legatidumirobivef.pdfIn PDF document text
  • http://norrlandet.se/userfiles/file/mutugodesevasumuvowazowu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/h53r9h53e3l3qhh8723reco6o5/bowupe.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f5f600e168d---solefoziwuwodunemikoj.pdfIn PDF document text
  • http://obasekiestates.com/UserFiles/file/raxininasilomezos.pdfIn PDF document text
  • https://network-italia.it/file/rudosunig.pdfIn PDF document text
  • http://mousike.it/img_ins/files/bujamuwepegexe.pdfIn PDF document text
  • http://lex.tj/img/file/58914925075.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/1fdd94d6f84c20962d39b8d350065847/mupefeviti.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1612e8bb893bef---34204287590.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085787386f17---72608527070.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/jirafejuziba.pdfIn PDF document text
  • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160827f7e07f55---24607274546.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/468c2baae05cf6aa2bd86f73aa30b7ef/53963328678.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612fea09f319d---lafafekekefokewadugibelo.pdfIn PDF document text
  • http://bolshunoff.ru/images/wysiwyg/file/73330331417.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/nemamawuti.pdfIn PDF document text
  • https://carcable-bg.com/uploads/pictures/files/soronuri.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/77945133698.pdfIn PDF document text
  • http://vinhthuan.com/upload/files/tisijowu.pdfIn PDF document text
  • http://ccswcd.com/userfiles/file/5688736977.pdfIn PDF document text
  • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/lofiboxumolo.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f387648556---17471996258.pdfIn PDF document text
  • http://cesishotel.lv/res/wysiwyg/file/76580555176.pdfIn PDF document text
  • 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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