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=bearing+selection+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372376/normal_5f89ab45aa252.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381971/normal_5f94cd875736a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374686/normal_5f895a8a621a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373757/normal_5f90ac9c5a211.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365619/normal_5f90b941683a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374535/normal_5f8ef78c078bf.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007691.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007691.bin)
  • https://uploads.strikinglycdn.com/files/c074ff80-3633-4d59-bc77-363aa319687a/road_signs_india.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04c2e9d7-0e1d-44c8-8183-f691d9d65e2e/mifez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35253c14-4407-496f-ac04-c013c8a69942/acer_aspire_e15_touch.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef0cf1d6-814d-4a3e-a796-a6cefe4ae2ec/75279213333.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/0387/4967/files/29830846885.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/42447820020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/6029/2515/files/pink_lady_apple_calories_per_serving.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/decathlon_cycling_shorts_size_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/4865/5784/files/aha_cpr_guideline_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/ford_escape_owners_manual_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9950/3805/files/adjective_pronoun_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4397/7888/files/music_studio_setup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/5670/8770/files/fitchburg_line_schedule.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2055/1845/files/33724608450.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e091ecc2-43d7-4e8e-94a3-fc3efd31a898/norokitug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/524aa1f8-39af-48e9-8896-f9cbecba73cf/12751792662.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/133c5c74-9e18-4866-8214-9838c550bfc0/momejadajafekifu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0cd87ac-31ba-4ef1-aecb-03d7878be934/jizawikudevirujuwubekozu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2a77b38-84b2-478f-9ab3-26ba6efa8954/90421190837.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_off00007691.bin)

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