Malicious PDF — malware analysis report

Heuristics 9

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://jottigo.ru/wb?keyword=airpay%20wallet%20apk PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4447079/normal_5ff235db9b9d5.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4384036/normal_5ffcd3ab2d525.pdfIn PDF document text
  • https://nawajutexi.weebly.com/uploads/1/3/4/1/134108687/5635166.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4501380/normal_6008792927521.pdfIn PDF document text
  • https://jarofipe.weebly.com/uploads/1/3/1/4/131408229/9909509.pdfIn PDF document text
  • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/351d2be.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4495058/normal_5ffcb9f721270.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4457849/normal_6013b53781992.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4373261/normal_5fe5e4d9c8c16.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4411245/normal_5ff836c22520f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463298/normal_60219593856f0.pdfIn PDF document text
  • http://www.opentle.orgIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/kiremefegonar/robodurebuxuxim.pdfIn PDF document text
  • https://s3.amazonaws.com/fomaralunex/vetipinir.pdfIn PDF document text
  • https://s3.amazonaws.com/wukara/22800798936.pdfIn PDF document text
  • https://s3.amazonaws.com/kovezodepugov/xirufoboniwenuvot.pdfIn PDF document text
  • https://s3.amazonaws.com/xurixado/installare_android_auto_fiat_tipo.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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