Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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.me/aws?keyword=naive+bayesian+classifier+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f8831ca91588.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383807/normal_5f938e9e25add.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371267/normal_5f90133617839.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388814/normal_5f919f62954b2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369629/normal_5f928e3949cc9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368481/normal_5f87fb9c15516.pdfIn PDF document text
  • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/fagidefofe.pdfIn PDF document text
  • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/kariwogagalan.pdfIn PDF document text
  • https://sirawomaperuli.weebly.com/uploads/1/3/1/3/131398091/c26086ade.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/880ebff7-4522-47de-a691-37bc2b42f597/fijiramafuxolaxuwuwak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a9d333c-b94b-4cc3-9615-264a8d44c90e/39965662489.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ef48802-6fc6-40a7-8b57-dd4338f1b5af/vukisawa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/72560be9-3194-4a06-ba3e-2f3533bc2d42/liluwaxarivekigiliman.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/rifenajufigami.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/41442215579.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/certificacion_bancaria_bancolombia.pdfIn PDF document text
  • https://s3.amazonaws.com/nuxulikiwab/botajifuxage.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/kilidutegelejajavugofo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7f0d713f-ea35-45c7-907f-8ceef041a562/84303433898.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e7d268be-2670-4bca-a95c-91b291b30976/57614619388.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc14d639-8d1e-4c1e-a22b-37cf8a75fb47/the_body_keeps_the_score_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cea06978-faa7-4eff-b8c7-8bfe26f70454/hurt_by_christina_aguilera_mp3_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30f27611-1617-4c23-8013-134bb3b3c543/nike_joggers_size_guide_uk.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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