Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9a6feed7de74845…

MALICIOUS

PDF

42.9 KB Created: 2020-08-16 16:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 814761073e876c4e5d5594a22e6bf322 SHA-1: 023445978916c6c66b53aa0dbde083b506a2d15e SHA-256: f9a6feed7de74845c83b5e277ee0efe691b44dbb01ac1a028d4e9858317b5643
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body itself is heavily obfuscated and contains the primary redirector URL, suggesting it is part of a link farm designed to lure users to malicious content. The presence of numerous other PDF links, many hosted on Shopify, further supports the link farm hypothesis.

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=voice+judges+dream+on+performance In PDF document text
    • http://files.primerentals.us/uploads/1/3/1/3/131398113/navolofijorexe.pdfIn PDF document text
    • http://files.stephenhardie.com/uploads/1/3/2/7/132712139/wafamiwapul.pdfIn PDF document text
    • http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/adobe_illustrator_flowchart_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0396/9689/files/22470849133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/school_safety_agent_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/villa_lobos_bachianas_brasileiras_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/sabafopavugonogovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/63215707075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/angina_instavel_e_estavel_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/fuvatamavevoravamuboro.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB9 5288 bytes
SHA-256: 43c6a7e027b5b7574041f89fd799d41e9caf26e7d467803295d9f17e8660ee5c
font_01_sfnt_off00006e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E90 9976 bytes
SHA-256: ec441634ac8ae6908b7a7f4346066c687c3b756201de54d0dafacdb24f56e795
font_02_sfnt_off000090cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CC 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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