Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e35a1174bd776c1…

MALICIOUS

PDF

41.1 KB Created: 2020-10-07 17:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 461c43111b77a9fd322a9532162c6e3c SHA-1: 1317fc25b8feba02bd237c151bc57f6c287434dd SHA-256: 4e35a1174bd776c1a6c08c484b0dc018142b2b3952e6601c8724db9144648403
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=best+hdmi+cable+for+4k+tv 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/dffe7509-d203-48b0-bddf-78b5df29f1f5/mepabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bf9035f-0b9a-46d1-a77c-5a678269e607/41897458771.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b314a6d5-43a4-43a7-93f0-442de080a2d1/38021821161.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18c5b9aa-8995-4689-9db0-a5f7262061dd/57088110724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/the_late_renaissance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6954/1014/files/dictionary_scavenger_hunt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1402/8444/files/79107405810.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03d9940c-8f4d-42a9-ac93-bdb2d01c9d13/xosusomitexage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59b0d76a-2fe6-4ee8-b8b9-8a5735feb702/tiluwel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04e84c4d-b800-43eb-86fb-d56e9414a489/ribofabatokokajefomisex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70886c1b-0c19-4e7a-a917-15f043efd1da/venedunutefos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d743129-7665-497d-9ea1-b6c808fe22c8/javokadisodufosumo.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_off0000609a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 5660 bytes
SHA-256: 5dc134d4ac21f594c9018c70245c1e90edb8c0cf55e6ec190ea99881e051ef67
font_01_sfnt_off000073bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BB 10632 bytes
SHA-256: e9287d369a929a472e2b860c2c97920b4ffbb3244acd076352e7279fd690c943