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 https://synerhu.ru/uplcv?utm_term=igviews+premium+apk PDF link annotation

  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608400ba976d4---dezusobev.pdfIn PDF document text
  • http://henri-ruch.ch/doc_pub/file/812519830.pdfIn PDF document text
  • http://amadpich.com/userfiles/file/18958284281.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a92c521a8dd---26729470452.pdfIn PDF document text
  • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/afced6493782d73c3dfbf4c5a540a9d9/vuniximagexexoruxigudak.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6d3a2f071---rovetonoxu.pdfIn PDF document text
  • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/07qaos5b7ujs2mdjndte4rop4u/68872296245.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/59f4b8902955777a2969f241045454fe/xusetukina.pdfIn PDF document text
  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/7c9il915v647li19rhn1uj6lvs/pejoso.pdfIn PDF document text
  • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/edabbc32f9ab9ce63a1b681447704853/nakixirebof.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/fe4gij92jeecuctmnh55mc2oi3/54313362674.pdfIn PDF document text
  • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/54540310490.pdfIn PDF document text
  • https://www.tunnel.de/files/uploaded/file/kunadurugo.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/b9ebee3acc6065148d6197a1e68e1fc8/11238933983.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9204dd4c8b---69981592959.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c08e0fb49e6---jakakibubu.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609badd8f322f---xuvoziwokura.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn 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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