Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d1df5cb8677833…

MALICIOUS

PDF

44.5 KB Created: 2020-08-03 07:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9214747618da1ae834c99ced6b23018 SHA-1: b69db181357158d191b55213ce4b0cf22781f35a SHA-256: 14d1df5cb867783385b3f4da1bd0e39ac8a9007394cc4123ba55cd681fbc2051
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=huffman+tree+java', suggesting a lure to download or view content related to 'Huffman tree java'. The presence of a large number of external PDF links, many pointing to Shopify, indicates a link farm or SEO manipulation tactic to drive traffic to potentially malicious sites. The ML classifier strongly flagged this as malicious.

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.com/pify?keyword=huffman+tree+java In PDF document text
    • http://files.empowerappleton.com/uploads/1/3/0/7/130775675/najigudav.pdfIn PDF document text
    • http://files.raleighwellnesscenter.com/uploads/1/3/1/4/131409305/sujare_fapikowu_juwumoned_vukezefek.pdfIn PDF document text
    • http://files.spelledlikethehockeyplayer.com/uploads/1/3/1/0/131069832/vujekukupapiwaduja.pdfIn PDF document text
    • http://files.aaronjarden.com/uploads/1/3/1/0/131070051/pafeduxaxiked.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/1/0440/9671/6952/files/36137354912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/70462940316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1567/3752/files/lutusenidemubukob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/jonbenet_ramsey_autopsy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/detug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/fojuvalotafux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavokalozetaxolemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4097/1674/files/sebagovafufekugun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/31745023445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6062/4537/files/mevugawetotuxorofep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/lovunif.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_off000065f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F9 4800 bytes
SHA-256: fc0f8e30bc7eb93c07833dbb9204c5e6e9ca72f5b5e19d54c4a9fa0dc09dbc41
font_01_sfnt_off0000763a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x763A 14596 bytes
SHA-256: 9fbc85768c1074e6bd94f99d375751f5bc4a042c0e56bb2894d9ff664d907708

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