Malicious PDF — malware analysis report

Static analysis result for SHA-256 802844c490203c09…

MALICIOUS

PDF

40.8 KB Created: 2020-08-04 05:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba218a9d6347fe32cfd10e8d47fcbb84 SHA-1: 4898db4016cb3e91618cb0e0f55a30efad9d61d5 SHA-256: 802844c490203c0913e5fb6c85119983838d2c86df4dc84065006573f45ecf70
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, designed to trick users into downloading further content. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains URLs that are likely part of a link farm or phishing lure, suggesting an attempt to drive traffic to malicious sites.

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=mini+international+neuropsychiatric+interview+6.+0+pdf+espa%25C3%25B1ol In PDF document text
    • http://dabusen.beatlesnow.com/uploads/1/3/1/4/131438464/dufotizixazi_xabasikabifiz_seneronunobirow_xawuvazawizerov.pdfIn PDF document text
    • http://files.tribesummer.com/uploads/1/3/1/4/131454221/4002578.pdfIn PDF document text
    • http://files.jayeofalltrades.com.au/uploads/1/3/0/7/130775851/2db07a.pdfIn PDF document text
    • http://files.rightchoiceuae.com/uploads/1/3/0/7/130775953/1799329.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/1/0431/1223/5174/files/20256041364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/tabolumazuworibelebilij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/78666221431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/66061040175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9377/files/logaturod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75815848510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/campbell_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/abbvie_pipeline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/tutakogobivifonolanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2023/files/33788385506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/26973186330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/76347080032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0827/8171/files/jazelu.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_off00005a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3A 6044 bytes
SHA-256: 5e195f80a5e69d9d0e6b69c4de3d4f209e07eddd1d5979f81d8f81339051a036
font_01_sfnt_off00006eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAE 10648 bytes
SHA-256: c40e58ee4ab358f837474ee591368f56481157394d525cda2df9325bb0440394

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