Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d1d3c7f29dc6b2…

MALICIOUS

PDF

41.8 KB Created: 2020-08-09 20:05:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 368eda6fd71bcf602203400f8de8d473 SHA-1: 241c14d7acdd378c3d2b5d19da30249db7108fc9 SHA-256: 76d1d3c7f29dc6b213cb9826888e752d18865db45a7f6351c727bc56eaf8ebe1
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL pointing to malicious infrastructure, disguised as a free download for website design resources. The ML classifier strongly indicates maliciousness, and the embedded URLs suggest a phishing or scam attempt to redirect users to potentially harmful content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=website+design+pdf+free+download In PDF document text
    • http://vozisof.messforfun.com/uploads/1/3/1/1/131164250/8971067.pdfIn PDF document text
    • http://files.dogtownpestcontrol.com/uploads/1/3/1/0/131070230/3381411.pdfIn PDF document text
    • http://files.richmondscottishcountrydancers.org/uploads/1/3/1/4/131453713/a3054a6.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/1/0430/4922/2298/files/gudekalumezozupigirefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/vuwigijagubanafen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/lubogujov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5783/1326/files/96116856712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6055/files/totijitopenixiwadamidivap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/wibujefad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6013/3031/files/books_about_time_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/finobimebebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/bukijivovunafexeduju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2053/files/pufenakugovuru.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 7

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_off0000649d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649D 5456 bytes
SHA-256: 2b5aed164ddcd4c02fa002df93f5073f2b54f2e2ce90e433f0fd6bb801f06252
font_01_sfnt_off0000774a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774A 10408 bytes
SHA-256: 2f48fdd1b24e776bd2139dded086b7c1141ff3121ff584fc552d79fc3d2cd3b5

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