Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa2863f0dea0a7d…

MALICIOUS

PDF

33.7 KB Created: 2020-08-22 11:39:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dbd5763f8385733ea8bf9e65407ac790 SHA-1: dc565024ac6423c380b495a495e72459a1831f01 SHA-256: 0aa2863f0dea0a7db6dbd9413b145f9e803486609a1542060f5033cf356e8df2
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 malware distribution attempt disguised as a practice test. The embedded URLs point to various PDF files, likely intended to create a deceptive link farm for SEO manipulation or to host malicious content. No scripts were extracted, but the presence of multiple malicious and SEO-related links indicates a high likelihood of a malicious intent.

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=pet+practice+test+listening+with+answers In PDF document text
    • http://files.burtonsmaplewoodfarm.com/uploads/1/3/1/6/131637037/90a6f278.pdfIn PDF document text
    • http://guguvuj.mathwithmichellemallahi.com/uploads/1/3/1/4/131438216/938773.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/1/0432/4930/3720/files/4262587222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9417/8982/files/73767072427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/79488478761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8941/2767/files/39756864101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/boogie_nights_movie_in_480p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/cushman_wakefield_market_research_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/lurojiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/kaltura_capturespace_lite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8567/6192/files/19683917736.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 2

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_off00004700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4700 5288 bytes
SHA-256: 225d1f562b493b86c954d57e4c348d044e5bfe19c2b3db03995e19b6f89700a9
font_01_sfnt_off000058fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FC 9724 bytes
SHA-256: ef156d036c2de2f60c819742d27907cef3dbf6a86ce9bb7dc4f29f958ef491fc

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