Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8cf572f09508fb…

MALICIOUS

PDF

43.4 KB Created: 2020-08-07 21:47:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fd608cc31db192d4f667a1deffda051 SHA-1: 66b958a0dd618b64ae6a48e20b939bf6966aec8d SHA-256: 8e8cf572f09508fbc43cba3de19b994587c33b6d6a21ecdb415604f4a38958b8
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also fired for PDF_SEO_LINK_FARM, suggesting a large number of outbound links, many of which point to Shopify domains hosting other PDFs. The primary malicious URL is ttraff.com, which is used as a redirector. The document body contains obfuscated text but prominently features the malicious URL and several benign-looking Shopify URLs, likely part of the link farm.

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=rudofsky+architecture+without+architects+pdf In PDF document text
    • http://files.ryanmarkmorgan.com/uploads/1/3/1/3/131383613/ab4ddbf88c4fe.pdfIn PDF document text
    • http://files.psacollegecounseling.com/uploads/1/3/2/7/132712614/1307266.pdfIn PDF document text
    • http://dosipivi.annettedelcanto.com/uploads/1/3/1/6/131636725/9324184b6d2d6f.pdfIn PDF document text
    • http://luvetuk.monicaburtonyoga.com/uploads/1/3/1/4/131409090/479252.pdfIn PDF document text
    • http://zegeru.gktfreechurch.com/uploads/1/3/1/6/131637881/6761200.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/1/0429/9004/3285/files/sufijifelif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/gagupafuvebolejololanafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/59913967485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/sowofif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2553/6936/files/bazirekimetatubobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/67864051217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/ti_30xa_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8331/7926/files/naturalism_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0600/0282/files/xusapuzopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/gemosusomesedofurodafidow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2275/1643/files/begatobepiradumuvonomid.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_off00006af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF4 5476 bytes
SHA-256: e7238967f8e6e5ca6b956ce917ff8d0dd925399689edc6d80a31656a338be626
font_01_sfnt_off00007db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB6 10304 bytes
SHA-256: e7ce02f7767e3635014a02274759f05294801473fa09a32084e1f7829b688040

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