Malicious PDF — malware analysis report

Static analysis result for SHA-256 147f9d3c337c76f3…

MALICIOUS

PDF

33.4 KB Created: 2020-08-17 10:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20a85ee697cb7202246c8e2890cb08f3 SHA-1: f66592cba54a4d3cf20074abef91593701d2bb60 SHA-256: 147f9d3c337c76f386feb9e217ef8fea812064043badb2a13bab549d47a71458
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body itself contains a disguised link to 'ttraff.ru', which is identified as a malicious redirector. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to attract victims. No scripts were extracted from this sample.

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=gourmet+race+sheet+music+viola In PDF document text
    • http://files.worldofchristinestoddard.com/uploads/1/3/0/9/130969059/ruvisobexujo.pdfIn PDF document text
    • http://vugubu.modernedgeacupuncture.com/uploads/1/3/1/3/131379803/7397217457b.pdfIn PDF document text
    • http://gosikut.jlkbodybutters.com/uploads/1/3/0/7/130776525/2531811.pdfIn PDF document text
    • http://files.sitimeline.com/uploads/1/3/1/3/131398140/gesibuzek.pdfIn PDF document text
    • http://files.sjacksongms.org/uploads/1/3/1/8/131856433/ac55c623127.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/1/0434/9558/8002/files/24986717412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/jevuraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/charcoal_drawing_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9367/8497/files/sefafalit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/auditory_brainstem_response_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1290/7423/files/wonijuvopevupiganomufej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/vifejirezatuvowovorir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2620/9175/files/php_password_protected_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/43248091307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/xalapunexoko.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_off0000470e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470E 5132 bytes
SHA-256: 0f5d4c07f400b3ba41ea2a0dddb88276649eb0f9c201a4123af4e047c56deb40
font_01_sfnt_off00005861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5861 9516 bytes
SHA-256: a2a42ec7539b6ac0da29f2729bcb13fc9ce1a4d1e72ea11989af1eb1d190b17b

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