Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e48c8ddaf6e4bf…

MALICIOUS

PDF

41.4 KB Created: 2020-10-12 21:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 11a5d7f944507f16fba609ad21f1841c SHA-1: 49c7b537fd6a08fbb8a07c4678109d4c4539558b SHA-256: d3e48c8ddaf6e4bf44b010e487005c8c14bffa558f41ed6e4c9176b05067fc9e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ggtraff.ru/strik?keyword=pearson+algorithms+4th+edition+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec2b564-5599-440c-a5ca-682e8417b400/votagegemure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/065dd3ef-9316-4815-acb0-4dde8b2c9862/wiwixef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5bdc79e-d434-48a9-acd7-330c69255474/34459124153.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c1d13ee-525c-49bd-8ebb-baefa276b905/vaxoronivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6899/5224/files/is_buddhism_polytheistic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/total_eclipse_of_the_heart_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4975/3493/files/garlic_parmesan_white_sauce_dominos_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/different_damascus_steel_patterns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0416/0931/files/bleach_squad_11_lieutenant_fight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2957/files/thule_tire_chains_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2407/5928/files/simon_birch_movie_poster.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9412/3720/files/tasha_backyardigans_height.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/wosopa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06525a17-c28b-4665-8e58-9a0ebfe0aa25/693057794.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2d2ab7a-6c36-4cd3-8b99-8d6265a3de65/biwotop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dd75804-4e04-4cfc-8d12-d39072a4ee35/62344923809.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 PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6212 5544 bytes
SHA-256: 62419c8c437a5af54f2af71259e125cc6396edf1968d001e935308e108e0af7f
font_01_sfnt_off000074c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C2 10548 bytes
SHA-256: 297fbdb082a7f6c2b6e326616da4f780129a4b3ca09a7fcc7ef8077e5b95a2fd

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