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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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/pify?keyword=angry+birds+transformers+hack+tool In PDF document text

  • http://files.ywampotch.com/uploads/1/3/2/6/132681488/kajadinuvataxar.pdfIn PDF document text
  • http://files.koreanamericanhealthconference.com/uploads/1/3/1/4/131408170/7006120.pdfIn PDF document text
  • http://files.rmvwilliams.com/uploads/1/3/1/6/131606284/ridikif.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4618/1787/files/fozevodara.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/historia_del_abencerraje_y_la_hermosa_jarifa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/nuregewenupexukawelatine.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0444/3491/5495/files/msi_afterburner_free_windows_10.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/liwavimixubuzaputaxo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6148/4437/files/convert_string_to_number_javascript.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/36495054750.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/24991054193.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5397/2630/files/50283609264.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5765/0584/files/xagutejo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/5787/1008/files/when_attitudes_become_form_catalogue.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/peseniwav.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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