Malicious PDF — malware analysis report

Static analysis result for SHA-256 38c0caef796a68ed…

MALICIOUS

PDF

47.5 KB Created: 2020-08-08 11:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49a7e9ca9fae28f67e85ba933e6e64f1 SHA-1: eb6162583d36757a438421fce8ddb51d061e9cbe SHA-256: 38c0caef796a68ed001cae7f3be36c1c991e7856c9d6cde499e086460a4310c6
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=physiology+of+eye+pdf'. This indicates a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify, suggesting a link farm strategy to obscure the malicious destination. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques beyond redirection.

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=physiology+of+eye+pdf In PDF document text
    • http://files.gvphoto.org/uploads/1/3/1/4/131454373/893e12ec430442.pdfIn PDF document text
    • http://files.marrymeinlefkas.com/uploads/1/3/2/6/132695832/1456787.pdfIn PDF document text
    • http://files.abijoes.co.uk/uploads/1/3/0/7/130738596/8c046dd72.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/1/0433/2175/3758/files/xemuwawimavijofaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/padi_open_water_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/15171484428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9529/4105/files/unique_global_imports_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/5236520766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/8945060764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0665/files/volizixakor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/49535964906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/samogikaniludewevawosun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/ackermann_steering_geometry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8170/2301/files/76856033697.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 3

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_off000070d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 4704 bytes
SHA-256: 22f57eec5798a24a8196ab3bdaac45109e4e0217507b62576538b3511dbf594a
font_01_sfnt_off000080e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E0 10096 bytes
SHA-256: c47575709f1a2d15fc1e9dbfa6ae0c1330c245e7223eb47860e60f17b4e7d02f
font_02_sfnt_off0000a351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA351 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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