Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ec3dc3ed990749…

MALICIOUS

PDF

48.9 KB Created: 2020-07-30 15:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 605330cff3e09827a55f04ede6ef2696 SHA-1: aa0679c51c1b1c87e592053a235eca936678a2ff SHA-256: e0ec3dc3ed99074961b70a48af3bd3d56358af790652e466ac1ab9bac19e0720
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting an attempt at SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious destination. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content.

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=caries+dental+en+pediatria+pdf In PDF document text
    • http://files.spinalunwinding.com/uploads/1/3/1/3/131398097/3746671.pdfIn PDF document text
    • http://files.kanecountystormwaterupdate.org/uploads/1/3/0/7/130775009/0684c8.pdfIn PDF document text
    • http://files.educateachildinpakistan.org/uploads/1/3/1/4/131409200/9f8a2b6dd5d31c.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/1/0434/3834/2311/files/23117491227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/durewosomonimejoveseval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/zanopuravi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobirunutopuwipigodilig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/37450780779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/74839830442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/98412004290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/86181681004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9408/8611/files/bopefoxudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/vunifesawanaduzolakuminar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/faluwewupirapimexefivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/62164217601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0272/4506/files/27919596579.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_off00008205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8205 4736 bytes
SHA-256: 3340ed9dfacf127d1a33cb0a9c559447ca13b691c825fb3dffc701c8dc113264
font_01_sfnt_off00009222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9222 10792 bytes
SHA-256: bc4bc698f81b78d2ebdb75f089fc95cd2626444d7bf14a26c7f0f7f363e672df

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