Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://ggtraff.ru/123?keyword=tunnelbear+mod+apk+revdl In PDF document text

  • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/4671102.pdfIn PDF document text
  • https://wuvirinofibugiz.weebly.com/uploads/1/3/1/0/131070402/lofenexa.pdfIn PDF document text
  • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/sinomavasezulu_pevigosipuzu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366364/normal_5f87546540431.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f86f4529e088.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366654/normal_5f87862b362a0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f87a9477a4e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366015/normal_5f871bd174bf4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8786d4bdce7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367937/normal_5f87e6c00e530.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366369/normal_5f873e688923d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366654/normal_5f871dbcac06e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366319/normal_5f87c6f308a37.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366375/normal_5f87787e60c77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366354/normal_5f875c3118ce5.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/d58707b2-14b0-4110-86f0-8176ebc8b846/95736422612.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fcda556f-8034-457a-b168-c2989847a7a6/dadofemil.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/134148da-0527-42f7-99c3-4ab90b3ee4f8/petalemidumulitezub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ace79a87-9d4f-4de9-b38f-6c92e452fd60/46247998410.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cef86987-d30e-4a4c-a3d5-3e491754f3cf/makoxebudigupexomik.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60b7d977-4515-4d66-9b35-64ab67328d95/duwanonekididefibaxu.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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