Malicious PDF — malware analysis report

Static analysis result for SHA-256 132f833eab7cd4ce…

MALICIOUS

PDF

35.5 KB Created: 2020-08-17 16:56:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb706e0e802b23f41c5392023964b843 SHA-1: 0d45b8d95dcec0512adedec25465d1c8da783106 SHA-256: 132f833eab7cd4ce8f6f5937a081b292192e44506c486d3466b5336ec1ffe27a
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded content, though heavily obfuscated, includes the malicious redirector URL and numerous benign-looking PDF links hosted on Shopify, likely to appear legitimate. The primary malicious URL is ttraff.ru, which is flagged as a malicious redirector.

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=frogs+and+toads+venn+diagram+answers In PDF document text
    • http://zajenuj.ballyporeenns.com/uploads/1/3/1/8/131856703/9314947.pdfIn PDF document text
    • http://files.mismacounsellingservice.com/uploads/1/3/0/8/130814680/zunotebunetelid.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/1/0432/6329/5646/files/76251558214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6566/files/purak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/arabic_dictionary_app_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/tefufofavejutuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/wavogekegekiforeloxamut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5195/8947/files/3911308792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/97755891062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/20611903890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0980/9318/files/41183678090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5513/5390/files/cambridge_pet_for_schools_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/xinisenozuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7065/5381/files/10797744218.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_off00004dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DEA 5220 bytes
SHA-256: 5696d46322ab378884d440005955909d604f892b7de85a47cb9071ff90b54516
font_01_sfnt_off00005fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAD 9860 bytes
SHA-256: 505bb15e8a817dbab60eb24b02dae9241be524043d6db7cc9c36de5d89a7edba

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