Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d72469d6c874edb…

MALICIOUS

PDF

49.9 KB Created: 2020-08-05 12:23:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b056cd2eb42712c1cd5802047dbae65 SHA-1: e4f5dd0587f3e421d7deb16b9d743a8a27f9bc9a SHA-256: 7d72469d6c874edb6154c769c80e5ca6a7147cdb906da571458791f5c8bc332b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic firing indicating they lead to known malicious redirector infrastructure. The primary redirector URL is 'https://ttraff.ru/pify?keyword=el+barril+del+amontillado+pdf'. The document body and embedded links suggest a lure to download further content, likely malicious. No scripts were extracted, but the PDF structure itself facilitates the malicious 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.ru/pify?keyword=el+barril+del+amontillado+pdf In PDF document text
    • http://files.blue-house.org/uploads/1/3/0/7/130739532/juwugitegus.pdfIn PDF document text
    • http://files.illinoisclimbingclub.com/uploads/1/3/1/3/131383456/jemagekatubos.pdfIn PDF document text
    • http://files.massmediamaker.com/uploads/1/3/1/8/131871980/mijimeko-bekub-kikakede-jemuxerarotigok.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/1/0437/1028/3931/files/jumejavaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/53608982633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/xigelijurovajew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/migixajekup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3398/4161/files/72801318205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5468/5599/files/acid_base_titration_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6854/files/sovisobamifelamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9236/files/vusawif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/canard_pc_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/62855603157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/vabemanovebolufilis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9093/4949/files/tebipabixironeroneladig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/38141773786.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8488 5108 bytes
SHA-256: 38976b308897d095906ec36fca044533eb17bab3c41ab9f65ec57b56cfbfdfdb
font_01_sfnt_off000095cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CF 11456 bytes
SHA-256: d0d72cd2a7b2fbad6d1b91116890cddd17ddb099fefe718ca4cbfddec6c5d803

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