Malicious PDF — malware analysis report

Static analysis result for SHA-256 2326be14c21e718a…

MALICIOUS

PDF

50.6 KB Created: 2020-08-04 08:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f022e5cca67aaa9a35a7c892e62800f SHA-1: 34d522605dc2b70dbb955b5340f57948478c6e5d SHA-256: 2326be14c21e718a272bf2a6f46aca4acb8d263d9d4be4636f006fadb1d6f33f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or redirection strategy. One critical heuristic firing indicates a PDF link to known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. 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=tumor+solido+pseudopapilar+de+pancreas+pdf In PDF document text
    • http://files.beenwheredonethat.com/uploads/1/3/1/6/131636808/lilika-wezivute-vavudigu.pdfIn PDF document text
    • http://files.kristinacourt.com/uploads/1/3/1/0/131070526/717bcbe3b2f.pdfIn PDF document text
    • http://files.briannedempsey.ca/uploads/1/3/0/8/130814058/568c6b004501a8.pdfIn PDF document text
    • http://files.greenvalleygrowers.com/uploads/1/3/1/8/131871586/c9edbb1beb999.pdfIn PDF document text
    • http://files.rollupfoodtruckmenu.com/uploads/1/3/0/8/130814169/ralepoji.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/1/0430/1576/6177/files/nixuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3753/7942/files/wokagisez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/59895942441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/81950589479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peregomosurexezobosezob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9885/6867/files/nalopogoforixukomavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/66758067492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1070/3010/files/free_metro_boomin_drum_kit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/96229535562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/8844831736.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_off000086a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A6 5248 bytes
SHA-256: f74ee8c93e8ac8a0dc3e96dc2ecf8594c867b091de6c70c32f4ee10e9c0b55ae
font_01_sfnt_off00009864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9864 10872 bytes
SHA-256: c93fe4798e24f7a2e6997090e42656189d7acf0268fe432fc4289aed5eb3e444

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