Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d098a2a7226d490…

MALICIOUS

PDF

42.8 KB Created: 2020-08-02 15:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d27d1a890d4ddc249a08948a5190999c SHA-1: a5a0e59732a98ba51f607dbf7d3cd9e5ec718573 SHA-256: 0d098a2a7226d4909e78d19401e29383b8f24b032cce97932b510d44aa4be2f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common SEO link farm tactic, presenting itself as a free download for a textbook. It contains numerous links, including a critical redirector link to `https://ttraff.cc/pify?keyword=visual+essentials+of+anatomy+physiology+martini+pdf`, which is known malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, indicating its primary purpose is to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.

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=visual+essentials+of+anatomy+physiology+martini+pdf In PDF document text
    • http://files.replicate3d.co.uk/uploads/1/3/0/9/130969190/3233781.pdfIn PDF document text
    • http://files.evergreenhstheatre.org/uploads/1/3/1/4/131482819/lalivokofuwako_mawiweka_pogegezepi_xifapeme.pdfIn PDF document text
    • http://files.befreecounselling.com/uploads/1/3/1/4/131452938/9a29f7.pdfIn PDF document text
    • http://files.acgraleighcapitalconference.com/uploads/1/3/1/8/131872048/zumujakarevemaxifo.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/1/0430/3316/5986/files/56720887947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/tobegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/19635564802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/bofobuxexigixarawemagoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/4402788586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/furos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5176/8225/files/xaxoroxonimulozaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65028435792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/50381605906.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_off00006634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6634 5520 bytes
SHA-256: 0c643fd8509c6386310da247cab8a35ea0e7af0debcf8ad428c02bfb5b539983
font_01_sfnt_off000078db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78DB 10428 bytes
SHA-256: 63a5ba67e234707392a1e3c420b91b2947ffe4a59669fb2452a8c1cd5b5aa781

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