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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://ttraff.link/123?keyword=psc+question+paper+2020+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4392861/normal_5f93393849435.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393763/normal_5f94e6d49bc8c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411709/normal_5f94ab5fdba89.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383925/normal_5f8bf09347926.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371509/normal_5f8cbfe0eda11.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f90891689fc8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368486/normal_5f8e364bcf13c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378856/normal_5f8d60a1c0280.pdfIn PDF document text
  • https://terobatef.weebly.com/uploads/1/3/4/3/134397950/xasuforetamutexinat.pdfIn PDF document text
  • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/vuxipinalirure.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378608/normal_5f94bbb98ce90.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f872bd6de789.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000be84.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000be84.bin)
  • https://s3.amazonaws.com/xisefowu/bandura_social_learning_theory_in_hindi.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/arnold_schwarzenegger_bodybuilding_encyclopedia_download.pdfIn PDF document text
  • https://s3.amazonaws.com/tedowafomaru/mizokimagatizazoxa.pdfIn PDF document text
  • https://s3.amazonaws.com/bupijila/kulapeliripevalujo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/97235570425.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/3685/2391/files/62340026523.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/4694/1084/files/meme_essay_introduction.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9232/1477/files/the_distance_between_us_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3069/1496/files/define_performance_measure_process.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 extracted file (font_00_sfnt_off0000be84.bin)

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