Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ee9b8e03e4c22d…

MALICIOUS

PDF

43.9 KB Created: 2020-07-30 20:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b03804490331c203e859dae7b8f824e7 SHA-1: 40037bda03a92c337967030524ed464018a282e4 SHA-256: f6ee9b8e03e4c22dba981be1447cbb6301ef0a0e79cfc0812863ef8cd357d3ca
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One of these links points to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, appears to be related to 'Area do losango exercicios pdf', suggesting a lure. The presence of a link farm indicates an attempt to manipulate search engine results or distribute malicious content through a large number of URLs.

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.com/pify?keyword=area+do+losango+exercicios+pdf In PDF document text
    • http://files.greatwitsjump.com/uploads/1/3/1/4/131453045/gutidapemaxupowiw.pdfIn PDF document text
    • http://files.moriahgracephotography.com/uploads/1/3/1/4/131437246/worukinolofaxeb_daxufivosu.pdfIn PDF document text
    • http://files.friendswoodvolleyball.com/uploads/1/3/1/8/131871849/julodujudagalofa.pdfIn PDF document text
    • http://files.hickmanfootball.com/uploads/1/3/0/7/130776788/kamubumul-dobozokowobiz.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/1/0431/6105/9482/files/58148390010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/91705687278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/90788413388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6327/9767/files/37825013267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5231/7342/files/55324996687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6141/8913/files/laxafezog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5120/3225/files/85495137645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bebupikisanomagidilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/pomosagudew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6880/8613/files/94100246320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/dezufawujoxamevo.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 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_off00006d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D49 5088 bytes
SHA-256: f504187e0824ef29a7d4c2063ad24bf6fcc3c3f279e08cf1fca0e30d03b23f15
font_01_sfnt_off00007e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9E 10696 bytes
SHA-256: 810c21db609a059e52b1ccb53063e18e6c2921edb133cd53b9dedbc260123572

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