Malicious PDF — malware analysis report

Static analysis result for SHA-256 525dcf66037b6469…

MALICIOUS

PDF

44.0 KB Created: 2020-08-08 03:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01a969daa792cfd12a4f94bed53735db SHA-1: 628d0f5e10f31c02d3267a1d2b8d7e0b9d139d46 SHA-256: 525dcf66037b646908418a51381a4baf52a14c8504cdbe96a8e902d71f56bbef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=advocate+personality+type+pdf. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure. The presence of a large number of external links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the final destination.

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=advocate+personality+type+pdf In PDF document text
    • http://files.shirebourne.com/uploads/1/3/0/7/130775840/vawun.pdfIn PDF document text
    • http://files.complexedsimplicity.com/uploads/1/3/1/3/131384249/xelojagajuvubozis.pdfIn PDF document text
    • http://files.marlboroughsawtours.co.nz/uploads/1/3/0/8/130873771/bd24ba622aa9e02.pdfIn PDF document text
    • http://files.pdxprays.com/uploads/1/3/1/3/131383018/wikixawasagi.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/1/0432/2469/4942/files/1725496184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/86035704512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/princeton_review_sat_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/fevobudevelevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2601/2567/files/95652593934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8095/files/biological_science_freeman_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1664/2975/files/39253538960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/wutor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9585/files/vimesefipavapirakisizodax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/vujudadiwamati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5295/5810/files/shoulder_dystocia_rcog.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_off00006e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E43 5300 bytes
SHA-256: 9cbc50b96bcb2f1fdc76449be80723f606fe350e116d836039450f53b8877763
font_01_sfnt_off00008068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8068 10376 bytes
SHA-256: 16ae5e4e5d49a1aaef0854aa2fcb51ebf58e93f3fa3589621eeaf3cbec807bb5

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