Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3b24bdf9ec5ca08…

MALICIOUS

PDF

37.7 KB Created: 2020-08-09 22:40:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33f62332580c81d202f982e0f15c567d SHA-1: c7914d52e7019ddfcca3d585d55eb62f2557a886 SHA-256: a3b24bdf9ec5ca0807d6a5d9ac1e01be454bd5d5f01a99e2913bf42edd7313eb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=frankenstein+graphic+novel+pdf', suggesting a lure to download a file. The presence of multiple Shopify-hosted PDF links indicates a link farm strategy to improve search engine visibility for malicious content.

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.ru/pify?keyword=frankenstein+graphic+novel+pdf In PDF document text
    • http://files.lifeandmusic.org/uploads/1/3/1/8/131855992/6919139.pdfIn PDF document text
    • http://wudivamar.worldsbestpinotage.com/uploads/1/3/1/0/131069899/6e04e0bf.pdfIn PDF document text
    • http://vufibuxi.christinefrankdesigns.com/uploads/1/3/1/8/131856158/5a1f8644a9efe2c.pdfIn PDF document text
    • http://files.tapestrybuilder.com/uploads/1/3/2/3/132302732/6d1bffe86822.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/1/0429/7038/2490/files/autism_breakthrough_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/kijixodukogeraxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2661/2378/files/gelugumijajuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1793/5770/files/59326575342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0377/2056/files/bapokuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/34217974133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6204/8421/files/15552950027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/tamerasuvirif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7546/9473/files/fizuvanunabarapen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/creative_problem_solving_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/vafexopedodanevekaredug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/64964202465.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 4

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_off00005207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5207 5496 bytes
SHA-256: 0511e78554a7f9fe18ee2583530db155b402842b9d9f31183da72659f1a253b3
font_01_sfnt_off000064bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BF 11136 bytes
SHA-256: 80d5116b2aefa2357999a4876d3cc5a504c283bfa427a8f220d8c2097811756e

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