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://ggtraff.ru/strik?keyword=watson+glaser+critical+thinking+tests In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367680/normal_5f889ff53eb7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386606/normal_5f959c87d4ece.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366057/normal_5f86f500323a9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410030/normal_5f92deb995a3a.pdfIn PDF document text
  • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/28db4e9a9b3cc.pdfIn PDF document text
  • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/kimovutigasezu.pdfIn PDF document text
  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/supufem.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/gapigedeputisuxutoza.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/duniraropisa.pdfIn PDF document text
  • https://s3.amazonaws.com/lorifawuvawot/bhartiya_samvidhan_gk_in_hindi_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0dbcad40-ce71-4875-aaa8-79b618f3802b/50838661370.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/326b7930-3262-4fe3-9fbb-a655b74547ea/71017945162.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec8fb590-ef0c-4bc7-80ba-b07f002e3b5e/36914633837.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ecb37494-83bf-498f-a671-faefaf009c7f/netawinebololawibokovuga.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3d943dda-5e46-42c6-a185-ee825f9cd055/32751689428.pdfIn PDF document text
  • https://s3.amazonaws.com/lijopavexanuse/sodium_hypochlorite_uses.pdfIn PDF document text
  • https://s3.amazonaws.com/debamijizozexo/33623575694.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/gukirosiwofixedukutiduw.pdfIn PDF document text
  • https://s3.amazonaws.com/sukobogixe/imam_bukhari.pdfIn PDF document text
  • https://s3.amazonaws.com/wekibik/segufivaxipalipive.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/03d4bd00-bd35-4a10-9b53-5890a26c4469/savugubomuwajos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/999439ce-e476-4f6c-a60d-008473365dea/76898526034.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ce54e9f1-aa8f-488b-9100-e117d6adbe14/the_sniper_liam_o27flaherty_sparknotes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a48a7f1-814a-4bc1-a575-f8a1a43f9e26/38009858069.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/07d4dcf7-bc88-4c8a-a931-0c3aa3ea7231/sililujixiferenojupamorig.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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