Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd01be564ed782e7…

MALICIOUS

PDF

47.5 KB Created: 2020-09-20 00:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d885850a507d4dfa2d1f32866e9fdec2 SHA-1: 71ccc9a57b3d269e137b5e7cc5db132a7cca350f SHA-256: fd01be564ed782e7f089c9d98de00d9174fa31d78d4f67675192ce42e7b35c95
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified as a link farm, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body text is largely unreadable binary data, but the presence of numerous external links suggests a delivery mechanism for further malicious content or phishing attempts.

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.me/wix?keyword=anecdotal+observation+in+childcare In PDF document text
    • http://files.copybyvan.com/uploads/1/3/1/4/131406717/8adc7a29e24eb1b.pdfIn PDF document text
    • http://files.wilsonmartinodental.com/uploads/1/3/2/6/132695990/30ac025915646.pdfIn PDF document text
    • http://tojuw.zz-photography.com/uploads/1/3/0/7/130776808/sajaxefofeluzaz_bimekomuw_lojitijumukuseg.pdfIn PDF document text
    • http://xanudo.medicalsupportth.com/uploads/1/3/1/1/131164239/lovobofedegew_kuzubevemodazif.pdfIn PDF document text
    • http://bexoni.theresathorne.com/uploads/1/3/1/3/131383914/pedugafuj_pavanoni.pdfIn PDF document text
    • http://doguk.drtmobilevetcare.com/uploads/1/3/1/4/131454172/9427286.pdfIn PDF document text
    • http://wupig.cakesbysarahc.com.au/uploads/1/3/2/7/132710657/9973223.pdfIn PDF document text
    • http://files.holmescreekbc.com/uploads/1/3/1/1/131163914/vowitekap_fuzagukajagar_faxese.pdfIn PDF document text
    • http://files.bollesrottweilers.com/uploads/1/3/0/7/130775677/fenawozexewowuz.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/1/0432/5824/9376/files/zamulobizewinisimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/95203870876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0210/0899/files/79304707995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/30646078055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2431/8618/files/witowa.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 8

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_off00007c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C02 5216 bytes
SHA-256: 4ad71071a88225b78e2f2ec538e3d918d286abcd6cf3016865118d930e4bd53e
font_01_sfnt_off00008dba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBA 10392 bytes
SHA-256: c2a044a5504c92a59191f79d493def884bb8477a7ac0ebe250f1864277779da3

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