Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dec36290a76dbbb…

MALICIOUS

PDF

42.5 KB Created: 2020-08-08 23:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1da3bea81e7125bfdc68fe03e0df3577 SHA-1: 68a1e7c44632a5fdce85e8d2105430df9cb79054 SHA-256: 0dec36290a76dbbb52ba5bb0eb8fad6d0c7e5a9e43e6828ac905c298c6af761d
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, suggesting a phishing or scam attempt to lure users to download malicious content. The ML classifier strongly indicates maliciousness. The embedded URLs, particularly the redirector at https://ttraff.cc/pify?keyword=behaviorismo+radical+e+pratica+clinica+mar%25C3%25A7al+pdf, are the primary indicators of this malicious activity.

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.cc/pify?keyword=behaviorismo+radical+e+pratica+clinica+mar%25C3%25A7al+pdf In PDF document text
    • http://files.debbietuepah.com/uploads/1/3/1/8/131856353/wunusab.pdfIn PDF document text
    • http://files.lefkasluxuryvillas.com/uploads/1/3/1/8/131856987/b340f59d81d80.pdfIn PDF document text
    • http://files.westcountryswords.co.uk/uploads/1/3/0/8/130873717/1a9ceb0c.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/1/0431/1236/6229/files/21242405209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5509/5712/files/50013858299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4985/6669/files/website_scraping_with_python_using_beautifulsoup_and_scrapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/fidojamesapunaliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/87136908483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/99357794854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9853/6091/files/85952432566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/gst_percentage_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/92550591868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/goraxeperepagexazumaxaxed.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
    • https://doi.org/10.31505/rbtcc.v7i2.32In 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 8

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_off00006546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6546 5688 bytes
SHA-256: c9cf0b5a4c73c33a90c9b1d1e663c752a15c01628645251ba2fd1331fd1d6dd4
font_01_sfnt_off00007838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7838 10268 bytes
SHA-256: ea02012709eb330a6c74631ba98efb45df5e6f5bd1f143247ba60267eb82bbe2

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