Malicious PDF — malware analysis report

Static analysis result for SHA-256 f659519d41d17de6…

MALICIOUS

PDF

58.2 KB Created: 2020-08-04 01:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ad2811dc4e05f11c64e630d5d139c79 SHA-1: e94a33e56d2fe8d2b82b3966a931037175ac11b6 SHA-256: f659519d41d17de627fff2b592d79eefb00ad97b4c90cb6c5691c8ddd8f4043f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=peter+pan+story+with+pictures+pdf'. The document body, though heavily obfuscated, appears to contain the same lure text and URLs. This suggests a phishing attempt designed to redirect 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.ru/pify?keyword=peter+pan+story+with+pictures+pdf In PDF document text
    • http://files.visitadamscountywi.com/uploads/1/3/2/8/132815008/rinexebifakit.pdfIn PDF document text
    • http://files.megjohnson.org/uploads/1/3/1/4/131406288/4189272.pdfIn PDF document text
    • http://files.rivervalleyobedienceclub.com/uploads/1/3/1/8/131871740/3672398.pdfIn PDF document text
    • http://files.bermudacookieco.com/uploads/1/3/2/8/132814958/9c4e5.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/1/0431/2439/2093/files/riputowokidupakugopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/34766598049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/18420279593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mujunevuduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5192/5155/files/60146808333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/bavikirid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/kimodab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6731/8167/files/wow_classic_aoe_grind_spots.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/lefijatifagaposise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/75051924877.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 2

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_off0000a6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6CB 5408 bytes
SHA-256: ed3bc8b70566517fb4b45584a2f9e87d7a5f5f5feb1328c97d84873da270eb6c
font_01_sfnt_off0000b942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB942 10024 bytes
SHA-256: 0ed1d39a325114b9125ad5596b14b23161f87754dbc628d3e96b2242f7b0d6ce

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