Malicious PDF — malware analysis report

Static analysis result for SHA-256 d511723bb835d377…

MALICIOUS

PDF

36.6 KB Created: 2020-08-14 16:11:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48cc3f65b4f2efd77c37a148a76229e2 SHA-1: bfdf45a83fe98b6e93a4a08e7f4cb704002a21b2 SHA-256: d511723bb835d377f5e1ac7212701b60aacec270031185a1d7797b7876e38488
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to direct users to further malicious content. The document also contains a large number of links to external PDFs hosted on Shopify, potentially as part of a link farm to improve search engine ranking for 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.com/pify?keyword=plastic+foam+core+sheets In PDF document text
    • http://files.adieinteriors.co.uk/uploads/1/3/0/7/130739490/levozowepage.pdfIn PDF document text
    • http://files.medusamcgill.com/uploads/1/3/0/7/130776591/dojeb-romadafev.pdfIn PDF document text
    • http://files.pwcs3.com/uploads/1/3/1/4/131454620/tededekuxavufusa.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/1/0430/0367/4785/files/27860930166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/74608363892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1715/files/zambian_mathematics_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magizokoluredofet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/91127095189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8295/6443/files/lineroziki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5265/files/cadbury_products.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/21554141812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/82395929868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7300/1889/files/alteraciones_leucocitarias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/2020_calendar_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/iv_admixtures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/zuxijivevikizuxekebajobef.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 3

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_off00005214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5214 5124 bytes
SHA-256: ead5b35f4332de565b12f1fe471bf8285682976efabce95ad9e4484335ab2987
font_01_sfnt_off00006352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6352 9984 bytes
SHA-256: 4877443ad3a4f9fe5cef0eb4d9585b3dc555733347ce9c75b1cf0426f8d117eb

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