Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c4df57b320415f8…

MALICIOUS

PDF

41.3 KB Created: 2020-11-06 12:32:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ce9b4c464f726a8837237223cc6c0e55 SHA-1: ec47273d26412ac2a57a965a2b845663bbf3463c SHA-256: 2c4df57b320415f880554f272299e3d5e5e748b139618c4b854fdf2c5b6c987d
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that acts as an SEO redirector, leading to a phishing page. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically flags this as an image lure for free-download phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lure users to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=walkthrough+for+johnny+rocketfingers+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413243/normal_5f97dd90ba337.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366371/normal_5f8823d150b7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374185/normal_5f9e4145c3519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392218/normal_5f94b1d384279.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_5f8b2e240c148.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367275/normal_5f9d605c8d6cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417806/normal_5f955b50619fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5f8e73c010fdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f8afdb74fd88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_5f8e07a939b18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372073/normal_5f8d945c88605.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416653/normal_5f95ebb2932a9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/zijekob.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/the_decisive_moment_henri_cartier_bresson.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_off00006218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6218 5532 bytes
SHA-256: 1658654f23c0eb12790f65663bef8a8ce7055f819ec0be4fea68564346669b35
font_01_sfnt_off00007507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7507 10360 bytes
SHA-256: f9d5d4d17e7ebe40e35d670992b933242d10e0f18dacd8752b12c8bede33e615

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