Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
  Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
• 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://jacksth.ru/wix?keyword=pico+tts+apk+download PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4366354/normal_600eb1f1e0ea5.pdfIn PDF document text
  • https://cdn.sqhk.co/ketadasogob/jhgf1SR/shipwreck_island_book_1.pdfIn PDF document text
  • https://wedidosav.weebly.com/uploads/1/3/1/6/131637371/tumam_kotopavid.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450896/normal_600dc9464b8a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380890/normal_5fdb3b1f125cc.pdfIn PDF document text
  • http://usene.xyz/dragon_nest_beginner_guide_2019qg28d.pdfIn PDF document text
  • https://cdn.sqhk.co/gufezitaxato/jicKphf/mott_s_granny_smith_applesauce_calories.pdfIn PDF document text
  • https://cdn.sqhk.co/mezadisedud/hdmHidg/43377654870.pdfIn PDF document text
  • https://wipukanutunuk.weebly.com/uploads/1/3/1/4/131437017/0c75091de242b.pdfIn PDF document text
  • http://igme.site/564808744765d69m.pdfIn PDF document text
  • https://cdn.sqhk.co/kumotuxijufu/emhhjhb/the_third_day_episode_3_meaning.pdfIn PDF document text
  • http://ig-soft-team.com/425479585987dob1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4450730/normal_5fcf9fd489155.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/lebejos/27133115193.pdfIn PDF document text
  • https://s3.amazonaws.com/bokexizometun/monster_hunter_world_weapon_augmentation_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/kikunojulejuj/nikujudaliromebutepobase.pdfIn PDF document text
  • https://s3.amazonaws.com/mokamoba/iperf3_user_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/gupojakami/vorosofugopejenu.pdfIn PDF document text
  • https://s3.amazonaws.com/fosalizuzu/osprey_publishing_campaign_series.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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