Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d177288fd5ce28…

MALICIOUS

PDF

40.6 KB Created: 2020-08-09 03:00:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b91e951429e74114817c7439e9c06c47 SHA-1: 32323ac943f754206f2544cfc7b254a947857824 SHA-256: 15d177288fd5ce2865968b7053d0c5cf301d982818e245ac8aa1e2b30faa6d88
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to external resources, masquerading as a book download. The primary redirector URL, https://ttraff.com/pify?keyword=architectural+patterns+book+pdf, is flagged as malicious. The document body, though heavily obfuscated, contains embedded URLs that contribute to a link farm, suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.

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=architectural+patterns+book+pdf In PDF document text
    • http://files.pqassessments.com/uploads/1/3/1/0/131071082/fasanusexipux.pdfIn PDF document text
    • http://files.koreamedicaltour.co/uploads/1/3/1/4/131408344/kurupezafiz.pdfIn PDF document text
    • http://files.hillsofnotts.com/uploads/1/3/1/3/131398367/8326653.pdfIn PDF document text
    • http://files.shellybroughtonart.com/uploads/1/3/1/4/131453086/gemuz_kipizog_fasogaluwe.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/1/0431/8239/1451/files/fevivubopuwep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6739/9575/files/i_roll_for_shoes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1755/0499/files/nafowezuxevipix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4415/0165/files/sofudidofufuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/30661606939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8369/files/public_finance_management_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/92940560562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/riziregalexikabeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8107/8686/files/css_drop_shadow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/62695693850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/78113713052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/dafel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6209/9109/files/spinning_color_wheel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/zepoferuxenikibesatabujek.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_off0000610a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610A 5436 bytes
SHA-256: 94ecca2202e160259c94f3ca466d77e6eed9a5593704aa451f7bfe1201f324f6
font_01_sfnt_off00007376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7376 9816 bytes
SHA-256: 8614d96dbc4604faa67176fa12447309572bef2518644778b3d17c67449d0a5c

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