Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://fiwisito.weebly.com/uploads/1/3/4/7/134715438/376835.pdf In PDF document text

  • https://s3.amazonaws.com/henghuili-files2/exception_handling_in_java_download.pdfIn PDF document text
  • https://s3.amazonaws.com/mafavuzenoliki/39826144073.pdfIn PDF document text
  • https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/getoxenuguva.pdfIn PDF document text
  • https://nusoselif.weebly.com/uploads/1/3/4/4/134470887/2948140.pdfIn PDF document text
  • https://nulosogitizibe.weebly.com/uploads/1/3/4/3/134317173/47d749039.pdfIn PDF document text
  • https://traffking.ru/123?utm_term=planet+nirn+elder+scrollsIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d0ad.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d0ad.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000103b7.bin)
  • https://uploads.strikinglycdn.com/files/2d1c24fd-09a5-45da-8cd7-877c6360421a/32300106010.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc1af7392c50b1a1e7d0ba5/t/5fcba12321c0486e91989c83/1607180580960/continuous_granny_square_blanket_border.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e04b6ae3-a84a-4e23-93d3-e801a773c422/82440083657.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11096068-2ba5-4429-8af0-182b8d8d2aa3/80295028013.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fdfcc9592ab3d568945385c/t/5fe0a6307514fb3b767bdce5/1608558130596/suxubejexulirunewilegiwad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9cbd7f7b-586b-4750-a786-61f7d01a504e/ziramu.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_off0000d0ad.bin)

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