Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa929a42b51416a…

MALICIOUS

PDF

46.5 KB Created: 2020-07-31 14:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 433d6340292a6d452fcb173f09a32718 SHA-1: 5e43116cb48323839a9cb33eeeb264d69fe7f154 SHA-256: 0fa929a42b51416a7c6a8e230bc954d738fedecbed24983913784f26c2a85ac1
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create an SEO link farm, directing users through a malicious redirector to download other PDF files. The primary redirector URL is https://ttraff.com/pify?keyword=a+view+from+the+bridge+revision+guide+pdf, which is associated with malicious activity. The document body appears to be obfuscated or corrupted, but the presence of embedded URLs and the heuristic firings strongly indicate a phishing or malware distribution attempt.

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=a+view+from+the+bridge+revision+guide+pdf In PDF document text
    • http://files.wesparklearning.com/uploads/1/3/1/4/131482950/b5457a5e4fa92.pdfIn PDF document text
    • http://files.pjcarradori.com/uploads/1/3/2/7/132740399/4641bfdd19b25ce.pdfIn PDF document text
    • http://files.hartshillandharpfieldsra.org/uploads/1/3/0/7/130776150/1185917.pdfIn PDF document text
    • http://files.sarahmulderpsychology.com/uploads/1/3/0/7/130739214/3396642.pdfIn PDF document text
    • http://files.hillfarmhistoricalsociety.com/uploads/1/3/1/6/131636941/774516.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/1/0436/0906/3582/files/3111494265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/tunijuxuvaxazutaxopal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/26874400486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/41361905806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8839/6959/files/dapurizozewalazekotazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/41526305382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2442/2811/files/8359077993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/48372415980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/80315618544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/49816061651.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_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 5376 bytes
SHA-256: 36091d238eb78605cc1dc2fafc595bda05685009e03c5567ce764fd3af43e31c
font_01_sfnt_off000089d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D5 10336 bytes
SHA-256: 57b88432d56c9562d8bc856585fa1e27f2127ec8bd720bfdcb982b11a6f5bb08

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