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://cctraff.ru/aws?keyword=buckling+restrained+braced+frames+pdf In PDF document text

  • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/wakorexipo.pdfIn PDF document text
  • https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/9abce3676732.pdfIn PDF document text
  • https://saloramorolo.weebly.com/uploads/1/3/4/3/134307331/juralaxasoriga_zopaboku.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372963/normal_5f8a6a63e3fd9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371003/normal_5f950ae8ce3c2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374685/normal_5f8ab3ffdd087.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f951ea510fec.pdfIn PDF document text
  • https://judemozosuduj.weebly.com/uploads/1/3/4/3/134306717/2088447.pdfIn PDF document text
  • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/rubabew-tureviv-virefomonob.pdfIn PDF document text
  • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/f664c4c.pdfIn PDF document text
  • https://nurekagenarufab.weebly.com/uploads/1/3/1/6/131636906/7360270.pdfIn PDF document text
  • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/4671102.pdfIn PDF document text
  • https://tuxitusonodedin.weebly.com/uploads/1/3/0/8/130873989/bivinemowuwit.pdfIn PDF document text
  • https://pevinuwipe.weebly.com/uploads/1/3/0/8/130873962/damavi_dopamod_ridugiwup.pdfIn PDF document text
  • https://sitawixabebel.weebly.com/uploads/1/3/4/3/134319036/rofize.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000072b0.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000072b0.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000aab8.bin)
  • https://s3.amazonaws.com/baxunaf/takosev.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/39204482880.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/nunaj.pdfIn PDF document text
  • https://s3.amazonaws.com/nonabafat/clinical_anatomy_made_ridiculously_simple_4th_edition.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/86d7bb3a-bf7d-4bc9-9603-fe8b37d7ccb6/12741649643.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee59a54e-c94a-44fd-86d4-0c56912a9462/38175296776.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/140dcdab-5ff3-43f4-9594-639826cb0369/jugigujajupazo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f5439190-9064-4bb8-9726-2f7dce0bd526/buzobozuvu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9dcdb5d-a0f5-4003-9ede-360c73dac67b/xudufusarimunovid.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 extracted file (font_00_sfnt_off000072b0.bin)

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