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 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://mufajagirudul.weebly.com/uploads/1/3/1/4/131452858/edab83.pdf.
• 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.
• 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/aws?utm_term=self+reliance+credit+union+hours In PDF document text

  • https://static.s123-cdn-static.com/uploads/4379615/normal_5ff2be407d27d.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4405202/normal_5fc85dd4237ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367301/normal_600b64cc14f88.pdfIn PDF document text
  • https://mufajagirudul.weebly.com/uploads/1/3/1/4/131452858/edab83.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4447640/normal_5ff5c6952eae1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476294/normal_5fd672b60238c.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4378604/normal_5fe2e33c7b569.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368760/normal_60160520647df.pdfIn PDF document text
  • https://cdn.sqhk.co/vizakifito/jfjfjji/fugodiforitowepasut.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4417141/normal_5ff1791b6492b.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403259/normal_5fefc7da2f70b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421205/normal_60148834cb1d8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372721/normal_6014f9ceca21a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374857/normal_6009fb66c3052.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/vabemavuputenif/danajinawe.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://scripts.sil.org/OFLIn PDF document text

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