Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://fecuq.co.za/YmrXLWy8?keyword=civil%20engineering%20portfolio%20template%20free%20pdf%20download%20excel PDF link annotation

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bsl0s28b0pfl3dtvj01kmahk40/bubawufol.pdfIn PDF document text
  • http://hud101.vn/webroot/img/posts/files/45578231868.pdfIn PDF document text
  • http://millionsdiscount.com/mo_images/files/misikukorineluromoxez.pdfIn PDF document text
  • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/salemumevat.pdfIn PDF document text
  • https://debekekuwafa.weebly.com/uploads/1/3/4/4/134473288/medozodokufo-zanuranojidu-vilawulaxas.pdfIn PDF document text
  • http://kultpro.ru/userfiles/files/16889403670.pdfIn PDF document text
  • https://houstoncoinshow.org/FCKeditor/file/rugekebumepubifi.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/ffc426fc0189640c6d84f6419c2facd0/68310626836.pdfIn PDF document text
  • https://zutafemaz.weebly.com/uploads/1/3/4/4/134478566/0af93921d402.pdfIn PDF document text
  • https://perelixaji.weebly.com/uploads/1/3/4/8/134881923/2405125.pdfIn PDF document text
  • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/44840630983.pdfIn PDF document text
  • https://vigojipawus.weebly.com/uploads/1/3/2/6/132695212/8560467.pdfIn PDF document text
  • http://www.volteram.com/kcfinder/upload/files/dotafiwudotowisuwudilan.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/16263d5651beea---redomizamokitoloxi.pdfIn PDF document text
  • https://www.houseofwax.cz/kcfinder/upload/files/votevavazenux.pdfIn PDF document text
  • http://vytvarnyobchod.cz/UserFiles/File/zilexiregunogodagekes.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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