Malicious PDF — malware analysis report

Static analysis result for SHA-256 478dd53c60f83fe3…

MALICIOUS

PDF

38.3 KB Created: 2020-10-31 21:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: f7404e428bd664009cc78d87ae86570a SHA-1: a99c92f49418ac1f12874c7be45645949814140d SHA-256: 478dd53c60f83fe3cf75666726cf2d401ebce3ceb86c473f06d9e82a1c3c5398
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://gettraff.ru/wb?keyword=legrand%20myrius%20switches%20price%20list%202018%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375075/normal_5f993cdc8c6b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421468/normal_5f9a02bda9af7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f870e0637800.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/lexiju.pdfIn PDF document text
    • https://sazojowob.weebly.com/uploads/1/3/4/3/134351878/9557379.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f875fb79e081.pdfIn PDF document text
    • https://nunezexivu.weebly.com/uploads/1/3/4/4/134440215/0b93307f19d1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/0384/4002/files/19131222972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/xetop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8244/1410/files/91217655883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5873/1429/files/92079301150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8914/1664/files/preclinical_evaluation_of_drugs.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_off00005424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5424 6224 bytes
SHA-256: 2db19b0783b8c1ff688aa276a7a5720cdf664369a7d4572c21d84481306a72c0
font_01_sfnt_off0000694f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694F 10460 bytes
SHA-256: 1940f1bf39c319bf9497c37c00ade666fad174dbbe392b5b1281cccd0cdc54c1