Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e520e404ebc7a9d…

MALICIOUS

PDF

34.4 KB Created: 2020-08-10 07:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f84c92424778bba2e67ae33da1c4df4f SHA-1: 592045c193d807b311e056a84eedb04417cdf3d5 SHA-256: 0e520e404ebc7a9d5c6a286df69168fb1ce20901fd51d309383e1e6a3fbff923
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic search results. One primary redirector URL, 'https://ttraff.cc/pify?keyword=invertebrate+paleontology+by+clarkson+pdf', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a phishing or malicious download lure. The ML classifier also strongly indicated maliciousness.

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=invertebrate+paleontology+by+clarkson+pdf In PDF document text
    • http://files.chiyoungkim.com/uploads/1/3/2/6/132696580/8dea2f4da5.pdfIn PDF document text
    • http://surofi.castlecreationsflorals.com/uploads/1/3/2/7/132741555/9744878.pdfIn PDF document text
    • http://files.catholicdocta.com/uploads/1/3/1/8/131856188/4e945f.pdfIn PDF document text
    • http://files.samanthajeankosakowski.com/uploads/1/3/2/6/132681479/b19cc1458f7.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/1/0432/3491/8568/files/masij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/dijarepov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9226/1529/files/77685956196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/49849168605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1846/files/69187979655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5950/files/wedipikutajigum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0260/6246/files/les_techniques_d_analyse_biologique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9147/6133/files/stevie_nicks_wiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4386/3198/files/xufub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9075/6259/files/zapefax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7559/9524/files/gloriana_trouble_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/91751638994.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 5

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_off00004782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4782 5624 bytes
SHA-256: 8d27c8017cad6281f297ac17b191efd28fa8e9fe108640492039fa01c3f24b31
font_01_sfnt_off00005ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC0 9904 bytes
SHA-256: a4f405150d20f92cdd4cc067274521e6c85f72b697e175a1dd6a044db33cc225

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