Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26fecf3d6eecaaa…

MALICIOUS

PDF

43.8 KB Created: 2020-08-09 22:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44dd967bc3373450cb11ebe3bd52732d SHA-1: 15972105efcbd48ff01d359e0fbf6ff2390c5d42 SHA-256: f26fecf3d6eecaaa143766042101c33206497af361d6f6473e03d1164f621d6b
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to trick users into downloading content. The document body and embedded links also indicate a lure for a manual download, further supporting the phishing attempt. The primary malicious IOC is the redirector URL, which is designed to lead users to malicious content.

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=advanced+cardiovascular+life+support+provider+manual+pdf+download In PDF document text
    • http://files.portablewallhanger.com/uploads/1/3/1/1/131163879/tupinedalirerud.pdfIn PDF document text
    • http://files.ppuneet.com/uploads/1/3/1/3/131398143/7465051.pdfIn PDF document text
    • http://files.greensbororoadchurchofchrist.com/uploads/1/3/2/7/132710679/rerududetanifenexa.pdfIn PDF document text
    • http://files.corefitathletics.com/uploads/1/3/1/0/131070291/pibapiwel_mimofavakipux.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/1/0433/8896/0933/files/88136724843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/neliwuzafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1002/1787/files/viwarage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/analysis_of_transport_phenomena_deen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/16175383198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/15076147847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/career_coaching_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7439/6063/files/82033092165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/61544366495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/zatigiwanesaxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4288/2215/files/zeluvamubanapesedajem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/24641368979.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 5

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_off00006cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC4 5440 bytes
SHA-256: cd01fe9e06cef6862a02ffb72ff2cd969fff676ff5724580390f37511e1371b2
font_01_sfnt_off00007f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F47 10620 bytes
SHA-256: 817392482a5f3faec60507cc0528e07866aa486b71f71b7d61a81eb61e1d558c

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