Malicious PDF — malware analysis report

Heuristics 8

• 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://crophysi.ru/123?utm_term=pnc+travel+notice In PDF document text

  • https://static.s123-cdn-static.com/uploads/4384825/normal_5ff58a997e32e.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4456982/normal_5ff4caa933a3d.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4479684/normal_6001550332e93.pdfIn PDF document text
  • http://bhd-management.space/67814550753nkhjr.pdfIn PDF document text
  • https://jokinurelebuvet.weebly.com/uploads/1/3/1/8/131856462/tedizilokuxo-ragavazog-mifazojepemere.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379049/normal_5fd639eb59e5c.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4450421/normal_5ff112f42c877.pdfIn PDF document text
  • http://nakidki-alkantara.xyz/50094119871fgyt5.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4486200/normal_60069de9796b5.pdfIn PDF document text
  • https://deremufirig.weebly.com/uploads/1/3/4/8/134854029/relupuje.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450506/normal_601a0fe6b42bd.pdfIn PDF document text
  • http://maewallace.com/79915471555g6ukb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376609/normal_5fe8d04f24abb.pdfIn PDF document text
  • http://drive4mclaneeffingham.com/dubai_tourist_map_2018kk1m4.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
  • https://s3.amazonaws.com/gulapore/pafatebudipujabugup.pdfIn PDF document text
  • https://s3.amazonaws.com/geraromu/tukovubegojuduvironosoxu.pdfIn PDF document text
  • https://s3.amazonaws.com/mafavuzenoliki/53458194407.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
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn 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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