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/123?keyword=differential+pressure+transmitter+yokogawa+pdf In PDF document text

  • https://mofivekirupu.weebly.com/uploads/1/3/2/7/132740685/tafuzokerigelipane.pdfIn PDF document text
  • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/9093183.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/8d8a303496e8cf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367640/normal_5f8fb2ca33dca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370088/normal_5f94dac3a4a71.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372737/normal_5f95ffaf1816c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f887b5319aa3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367299/normal_5f908981e2a21.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367960/normal_5f8dd0bbddd40.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372087/normal_5f887bdcca9ec.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369782/normal_5f881a7f591c1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365576/normal_5f9350c41cd01.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368505/normal_5f894eee973a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389106/normal_5f901688836eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368229/normal_5f8c154102765.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375093/normal_5f8c43ed5408b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369923/normal_5f89f55db2b1a.pdfIn PDF document text
  • http://www.opentle.orgIn extracted file (stream_005_off00007fff.bin)
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006cda.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006cda.bin)
  • https://s3.amazonaws.com/xefejevife/excel_advanced_exercises_for_students.pdfIn PDF document text
  • https://s3.amazonaws.com/rezugekolaba/fefumiwupu.pdfIn PDF document text
  • https://s3.amazonaws.com/pazovugal/khordeh_avesta_gujarati.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f67bffa2-738b-4be0-ae2e-3de215c25a96/free_animal_pon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12da66cb-760e-4305-a98b-3a1f99e5c74d/39292407708.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e99a079b-b279-425d-9895-c971994a6e35/lapond_vfd_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eae5afc0-0b9d-4246-9f4e-cc38609fea61/liwesijaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8c1080e6-1da7-4442-86a6-df8ff44c4408/btob_irresistible_lips_mp3_wapka.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://www.gnu.org/licenses/gpl.htmlIn extracted file (stream_005_off00007fff.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00006cda.bin)

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