Malicious PDF — malware analysis report

Static analysis result for SHA-256 444e6fd69485a5ca…

MALICIOUS

PDF

45.7 KB Created: 2020-08-16 00:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40c5157d90bae63d3cc6f48f8a46755d SHA-1: 72d10ef9434268dacb45a8f0a3444e0be758a3de SHA-256: 444e6fd69485a5cacfa5645b5504b81af9740823a0fef680ca93e205d90ff3df
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to 'fine woodworking' and the malicious URL, suggesting a lure to trick users into clicking the malicious links. No scripts were extracted from this sample.

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/wb?keyword=fine%20woodworking%20best%20workbenches%20pdf In PDF document text
    • http://files.tonyastuartmelland.com/uploads/1/3/1/3/131380471/jufimuzega_dozoti.pdfIn PDF document text
    • http://files.bodyworkharmonics.com/uploads/1/3/1/4/131409755/5038472.pdfIn PDF document text
    • http://files.gibtech.net/uploads/1/3/1/8/131858916/af057af239b875a.pdfIn PDF document text
    • http://files.ellismedlibrary.org/uploads/1/3/1/4/131407802/9822353.pdfIn PDF document text
    • http://ferope.bwvalencia.com/uploads/1/3/1/3/131380158/bolusipus.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/1/0431/5319/5165/files/tobepibaleginikumuvikili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8073/files/4461203186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/18212482689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8072/files/73590337362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/26887112573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/lowugixidafapuzewafix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/tofilupigirurikevizaxanim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/taxemepomoreb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/vesaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/dugapabawisokawulid.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_off00007472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7472 5424 bytes
SHA-256: dd8e1b8c5aa48ea5bb1e93fd34a12d91a8b0a7241b43fab70b2a2977f468c73c
font_01_sfnt_off000086f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F9 10276 bytes
SHA-256: ded963d02d7dd52168878625fbbe6482e34ca6c5a4afa8889961552fac091f58

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