Malicious PDF — malware analysis report

Static analysis result for SHA-256 39d6edf0ceb95c59…

MALICIOUS

PDF

51.8 KB Created: 2020-08-24 18:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9558f2efd70e2e031e4c76ab5df9f4be SHA-1: 9955996742d8b76204a4f0052c50e4c528e8b5d1 SHA-256: 39d6edf0ceb95c594c9f26f9b05f9691df557abef9701c4d27ce82a56f249f3f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that point to a known malicious redirector, ttraff.cc. The document body, though heavily obfuscated, contains text related to 'Arizona vehicle tax exempt form' and the URL itself, suggesting a phishing lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve SEO or distribute malicious content. 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.cc/pify?keyword=arizona+vehicle+tax+exempt+form In PDF document text
    • http://files.ejdilleyphotography.com/uploads/1/3/0/8/130815137/mupawitar.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/1/0436/8180/8549/files/giropuratakuxoruzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0171/5622/files/allahabad_high_court_aro_sample_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/mubuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7666/2934/files/bradmin_professional_utility.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4917/2382/files/kesar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/2002_kawasaki_prairie_650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/jexonufag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/kopilawutizared.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/39998002446.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 2

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Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1F 5244 bytes
SHA-256: 31d0208b8a3faaa968ddd082944869f03575bf1987c79558dc41bc38cc9db300
font_01_sfnt_off00009edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDD 10500 bytes
SHA-256: 04ded9ba34acc83348e38871ffd98579b5e2dc88597f5b8e5147304cfe3207f4

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