Malicious PDF — malware analysis report

Static analysis result for SHA-256 329c2516f2890172…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 21:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf957e86040b19bee723a5da4b853d15 SHA-1: ebc25af875bcd1a813102e1677389cca4f7a13b0 SHA-256: 329c2516f2890172cd4ada4884e24902e8a2f1ba5e6da2489cc823923d1419c9
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.ru/pify?keyword=libro+automatizacion+industrial+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt to direct users to harmful content. The ML classifier also strongly indicated maliciousness.

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=libro+automatizacion+industrial+pdf In PDF document text
    • http://files.shopcafeparis.com/uploads/1/3/1/0/131071166/3197797.pdfIn PDF document text
    • http://files.ewsevents.co.uk/uploads/1/3/2/7/132740338/panasime-xibokub.pdfIn PDF document text
    • http://files.themkdesign.com/uploads/1/3/0/7/130776611/79bfd75b7.pdfIn PDF document text
    • http://vunosowon.pennedideas.com/uploads/1/3/1/3/131380158/7283561.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/1/0433/0101/1611/files/64911667342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2490/6400/files/momuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/5117907158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1284/8807/files/prueba_de_catalasa_fundamento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/77846998489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/6344326545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6567/0806/files/81962824445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/zozoxiputadogowegipive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/29208025300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/77039976298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1789/4050/files/define_development_planning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65621046881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1893/4677/files/aptitude_test_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/depuwi.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 4

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_off00006562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6562 5432 bytes
SHA-256: 6333c24380dfa716251620a6a5a75227366a27b3b0a0aec3ab777a338a29524a
font_01_sfnt_off000077cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CC 10492 bytes
SHA-256: d3d8c6b4b7fa45133b6444c5a50c2c9a7bfc8c032465faae1414ab51941f378e

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