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
• 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.
• 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
• 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://trafffe.ru/123?utm_term=nims+702a+final+exam+answers+2018 PDF link annotation

  • https://cdn.sqhk.co/kixobaza/helr0Cu/fazulijapavigapubajobeb.pdfIn PDF document text
  • https://s3.amazonaws.com/gofiguj/algerian_newspapers.pdfIn PDF document text
  • https://s3.amazonaws.com/bisegilupuf/vivamasosopaxikijidexup.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4460682/normal_5fcb5674d07a5.pdfIn PDF document text
  • https://cdn.sqhk.co/lakekomum/3id80ii/pronunciation_werewolf_meaning.pdfIn PDF document text
  • https://bozadabeduli.weebly.com/uploads/1/3/4/8/134869561/luwinidozat_riwopafo_bisotizog_powuvurotikad.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4486354/normal_5ff49ac81c8c9.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4376870/normal_5ffdf133728e6.pdfIn PDF document text
  • https://cdn.sqhk.co/gixejefi/jIgjMp4/pewdiepie_tuber_simulator_apk_hile_android_oyun_club.pdfIn PDF document text
  • https://s3.amazonaws.com/lulelepese/85475778640.pdfIn PDF document text
  • https://cdn.sqhk.co/numokafas/0jbmeYA/blood_pressure_range_by_age_singapore.pdfIn PDF document text
  • https://jeratevi.weebly.com/uploads/1/3/0/7/130774970/5346463.pdfIn PDF document text
  • https://cdn.sqhk.co/wujukipako/R9Uhihj/science_behind_making_ice_cream_in_a_bag.pdfIn PDF document text
  • https://buwigare.weebly.com/uploads/1/3/5/3/135308802/5920645.pdfIn PDF document text
  • https://kofodurulivikaf.weebly.com/uploads/1/3/3/9/133997487/tibivaj.pdfIn PDF document text
  • https://cdn.sqhk.co/xisalaximel/diiIhjQ/puxuzegexigemul.pdfIn PDF document text
  • https://cdn.sqhk.co/woleparos/ijaEc98/diwebeseled.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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