Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/55a7c75aa.pdf.
• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.link/123?keyword=blendr+apk+mod In PDF document text

  • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/55a7c75aa.pdfIn PDF document text
  • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/modovesibowemoj.pdfIn PDF document text
  • https://pevinuwipe.weebly.com/uploads/1/3/0/8/130873962/2eec82f9a7e30.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/ce4e4240fbc4e67.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071c6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071c6.bin)
  • https://cdn.shopify.com/s/files/1/0497/9825/0660/files/36187744859.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2122/5114/files/22036333305.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/dragon_city_mod_apk_unlimited_coins.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6738/7303/files/62577138204.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5916/2521/files/72453780813.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/4589/8408/files/27648237389.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6694/5447/files/viber_apk_for_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3db3d265-0b78-4b49-ab48-b7624831fc29/an_introduction_to_mathematical_cryptography.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15bbc72e-faf6-4a50-a3c5-7b6fc88cf5f8/big_book_of_aa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18f1a502-532f-4432-b0e3-6e61257a9685/47823858315.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d516a7c4-a766-4177-95cc-3c1cae687f6f/rigitulujujetamil.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/442e318a-f310-4978-b4b3-ae9dd5511b22/tuxesurokefivavigebalaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc6f33e6-4a47-4a47-b7b0-0a732948e260/fukabozavasafuti.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/451fcb73-f4c1-44b8-b3e8-b647bcf15776/spider_man_unlimited_download.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_off000071c6.bin)

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