Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ceaef0066add0bf…

MALICIOUS

PDF

41.9 KB Created: 2020-08-12 21:03:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 671adfe57ac917a0a0279371f50511e0 SHA-1: e53c2bf7f3dd5a060e11b102987f33e2181ea821 SHA-256: 6ceaef0066add0bf332ed939bb4410b39e0f2c4ca473dfac62371ba5ffbef639
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, designed to trick users into downloading content under the guise of academic materials. The primary malicious indicator is the link to 'ttraff.cc', which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or content-luring attack vector.

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=biology+campbell+reece+pdf In PDF document text
    • http://files.findyourporch.com/uploads/1/3/0/7/130776267/tifen.pdfIn PDF document text
    • http://didati.joeledoux.com/uploads/1/3/0/7/130776760/foloki_mapewuladalijo.pdfIn PDF document text
    • http://files.rushinghomerentals.com/uploads/1/3/0/7/130775528/7c25d60d68d7c.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/1/0439/3166/4552/files/69117662245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6244/3683/files/24174909715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/linear_algebra_friedberg_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/jafibigewakuxogere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/que_son_energias_renovables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8797/0975/files/86914968919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/51139673371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/16804414534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8841/8718/files/bafoliwopetivekuwokosozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/kulimukegorotaxumej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/xebudopesabenusukubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/6526718247.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 3

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_off0000647d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647D 5588 bytes
SHA-256: 4d1956cf8c576438c766962171ed6a4018d0d2a8c4addb8f235a6fcc8a88c0a4
font_01_sfnt_off00007760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7760 10420 bytes
SHA-256: 9e600b4c81ff8cc297b7896472837b940e31eae298598c5f8291b3d8e293395c

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