Malicious PDF — malware analysis report

Heuristics 7

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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.cc/wb?keyword=manorama%20calendar%20june%202018%20pdf In PDF document text

  • http://files.kmajda.net/uploads/1/3/1/6/131606331/rofetamiwekokove.pdfIn PDF document text
  • http://files.firstlutheranricelake.com/uploads/1/3/2/6/132695432/fakibakituxodag.pdfIn PDF document text
  • http://files.goodshepherdinoshkosh.com/uploads/1/3/1/0/131069781/mavuxuf.pdfIn PDF document text
  • http://files.gyanheilyoga.com/uploads/1/3/2/6/132681460/c8d110b43.pdfIn PDF document text
  • http://files.spacegianthelmets.com/uploads/1/3/1/1/131164295/majapanifunomed_zurexusawot.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
  • http://smc.org.inhttp://smc.org.inIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/5526/5445/files/vubud.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0448/1181/3015/files/27084751687.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/catholic_liturgical_calendar_2018.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/5149/8142/files/bahara_song_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4277/4935/files/sawedor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/topoxegujowowadubunonotex.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0555/8436/files/29114257767.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/powershell_function_parameters.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/sawozez.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/nfl_week_1_schedule_spreadsheet.pdfIn macro / runtime command snippet
  • https://cdn.shopify.com/s/files/1/0439/5981/2254/files/82328233401.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
  • https://cdn.shopify.com/sIn macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text
  • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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