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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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://traffnew.ru/wb?keyword=minecraft%20windows%2010%20free%20%20link PDF link annotation

  • https://zexaloguf.weebly.com/uploads/1/3/4/5/134576330/909081.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371495/normal_5fae9714b2c10.pdfIn PDF document text
  • https://bilewobadazape.weebly.com/uploads/1/3/2/6/132695578/2682796.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375909/normal_5fa7d5dc98296.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/kokaka.pdfIn PDF document text
  • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/6391395.pdfIn PDF document text
  • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/gosivenunukivabu.pdfIn PDF document text
  • https://zipufalazuviw.weebly.com/uploads/1/3/1/8/131856517/kagupofikutudal.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4454042/normal_5fccf6fe07103.pdfIn PDF document text
  • https://tojaluteder.weebly.com/uploads/1/3/4/3/134384479/5829239.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.opentle.orgIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6fb747f-82f7-4481-a080-f7687995b78c/reverse_psychology_yahoo_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/bupesejirijejus/appvn_apk_for_pc.pdfIn PDF document text
  • https://s3.amazonaws.com/debamijizozexo/70647053351.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac688bea-9ac3-47b1-aba9-cba119a24e9b/buparekeduzixujetefe.pdfIn PDF document text
  • https://s3.amazonaws.com/pusolefosex/cpm_critical_path_method.pdfIn PDF document text
  • https://s3.amazonaws.com/napisakaluja/95791992613.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
  • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

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