Malicious PDF — malware analysis report

Static analysis result for SHA-256 0419da66ff024b89…

MALICIOUS

PDF

61.5 KB Created: 2020-08-23 23:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88dc6fb4f324a838d7a579c4f06c9bce SHA-1: 6d4aec27e406ce358761c725f544fb40d98a6c5b SHA-256: 0419da66ff024b8948bd9459f23ea5e988495b2b8393bafd2194eb257eaae437
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a free download for asset allocation guidelines. The primary link redirects through a malicious infrastructure (`ttraff.cc`) to a potentially harmful site, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a link farm further supports this assessment.

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=fibromyalgia+treatment+guidelines+pdf In PDF document text
    • http://vukep.carrollcountyfarmersmarket.org/uploads/1/3/1/0/131070197/bozudiwirebofodawid.pdfIn PDF document text
    • http://files.crestwoodbaptist.com/uploads/1/3/1/3/131382841/762961ab3a.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/1/0431/6993/9612/files/asset_allocation_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/iata_airport_codes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0902/files/derudojigumabalanuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/42280058325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/58748913331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/traumatic_cataract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/we_are_the_champions._mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8655/1971/files/form_css_design_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1340/1764/files/32212361294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/97783532446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0741/files/tizovaj.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 4

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_off0000b302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB302 5556 bytes
SHA-256: 223399f7c0aea58132e185236e4a1f441bc50cca0cddc64ced4bbdb0bf18cec3
font_01_sfnt_off0000c5cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5CD 10312 bytes
SHA-256: 1982b94045316abda5c348f38039d286d0f521191c1d5fdc867d2588a7e8e920

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