Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f175e5c94de37c…

MALICIOUS

PDF

38.8 KB Created: 2020-08-13 00:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0ffe684e316dde8bf48b737fe3f0ba0 SHA-1: e16e69265c732be4e22766ad5754228b9cafb813 SHA-256: b3f175e5c94de37c7606fdaf7a50d2c1800f84989f9fa12c394cdeed2ba46272
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links to external resources, many of which are SEO-optimized to appear as free downloads. The primary redirector URL, https://ttraff.ru/pify?keyword=introduction+to+seismic+inversion+methods+pdf, is flagged as malicious. The document's structure and link farm indicate a phishing or scam attempt designed to drive traffic to malicious infrastructure.

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://ttraff.ru/pify?keyword=introduction+to+seismic+inversion+methods+pdf In PDF document text
    • http://files.dinah-parums.com/uploads/1/3/2/6/132681517/mudufevemide.pdfIn PDF document text
    • http://jidaku.elliotcoxracing.com/uploads/1/3/1/3/131398504/0e3586a7fb651.pdfIn PDF document text
    • http://files.cresaptowneagles2883.com/uploads/1/3/1/4/131437380/renijoxinenivitevexi.pdfIn PDF document text
    • http://files.syrianmigrationsolutionsproject.org/uploads/1/3/0/8/130813409/gawokawenep.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/1/0435/4896/7061/files/motorguide_trolling_motor_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/romojenivagafukurebal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8260/2913/files/el_feudalismo_y_la_educacion_caballeresca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/11036360218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/40745032187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/31072671266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4025/files/40008907259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1140/5986/files/56197993517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/zogadebodenar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/jelimutifezep.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5991 5148 bytes
SHA-256: 31135690a68909636e1d2c2257c79db248d2871bffc20efebbf87de0b59b61c2
font_01_sfnt_off00006aef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 10212 bytes
SHA-256: a7ee5897fd5049f4194b742ebe72fa0fcc1618eeaf0708a65383827c18169107

Open this report in the interactive analyzer, or submit your own file for analysis.