Malicious PDF — malware analysis report

Static analysis result for SHA-256 17034fae0065f360…

MALICIOUS

PDF

53.6 KB Created: 2020-07-30 20:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f26d55a46138cb0d0045576cb6ceb89 SHA-1: 4de18ee09b674ceb7d805eedb63c858df45a490f SHA-256: 17034fae0065f3602558c4f0c1f531af7d883db56a3510ff3aaf7e527dc65428
202 Risk Score

Malware Insights

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

This PDF file contains numerous links to an SEO redirector, specifically 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'quantitative finance pdf'. The presence of many links to external PDFs, including one hosted on Shopify, indicates an attempt to distribute content or redirect users to potentially harmful sites. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=certificate+in+quantitative+finance+pdf In PDF document text
    • http://files.hireoptimize.com/uploads/1/3/1/4/131437333/132108279d.pdfIn PDF document text
    • http://files.suntreehealingarts.com/uploads/1/3/2/7/132740270/zipawe.pdfIn PDF document text
    • http://files.alphagolfopen.org/uploads/1/3/1/1/131163960/ed3bef772221.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/1/0432/2535/0301/files/nalewexalumigazemevuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/botoputorexoseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/pofakopoxoxem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/56179197846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/80814431392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/83231281410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/mijewafavorak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6314/8695/files/tuviwubuxijoxaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xorufolikuvuzinekotawoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/66854353543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/96799105464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/64968554879.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9452 4920 bytes
SHA-256: 579584b2f141cad5c40369e896b2677f461735433e97bede95ffbf0bb8d3aef5
font_01_sfnt_off0000a51c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA51C 10716 bytes
SHA-256: 7d73630a2e8cea1eec71d62d0a388e7e55408d054911241b2962800f1eb0d247