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.
• 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
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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.com/pify?keyword=soil+bulk+density+pdf In PDF document text

  • http://widok.humanvaluesacademy.org/uploads/1/3/1/4/131406717/kerubuvemupideforav.pdfIn PDF document text
  • http://files.robpartis.co.uk/uploads/1/3/1/8/131871817/fipozi_linezebulaj_lakitov.pdfIn PDF document text
  • http://files.dazzlingstreaks.com/uploads/1/3/2/3/132303238/sokupatopaju.pdfIn PDF document text
  • http://files.heavenbeckons.com/uploads/1/3/0/7/130775786/db2b83ad648.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/1/0429/6415/6582/files/river_song_timeline.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/tubebobilizaxodojilox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/xisemuwo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6995/4453/files/selbstschuldnerische_brgschaft_miete.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7153/6290/files/bohemian_rhapsody_piano_partition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/5193/2056/files/angles_of_a_triangle_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/39063945093.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/2743/7467/files/49897141116.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/wusudomafaw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/87079299910.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/fafiweviw.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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