Malicious PDF — malware analysis report

Static analysis result for SHA-256 7326b9e5118d9a8a…

MALICIOUS

PDF

49.5 KB Created: 2020-07-29 13:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6329ffaf48140341de920b5ecf5fe295 SHA-1: b925634d8bc906c4c84f1778fd7ceec8ec70a23d SHA-256: 7326b9e5118d9a8a3a9e82dd5d9cad252324d73585c848d97f73aadee418b91d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains numerous links to external resources, many of which point to redirector infrastructure. The primary redirector URL, https://ttraff.ru/pify?keyword=simple+case+study+sample+pdf, is flagged as malicious. The document's structure and the presence of many links suggest an attempt to create a link farm for SEO manipulation, likely to distribute malicious content or phish for credentials. No scripts were extracted, but the PDF's nature and the malicious URL indicate a high likelihood of a malicious redirector being used for initial access.

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=simple+case+study+sample+pdf In PDF document text
    • http://files.brunoforcine.com/uploads/1/3/1/3/131398452/dedusawoxukilela.pdfIn PDF document text
    • http://files.knockouthumor.com/uploads/1/3/1/0/131070246/71c8d42.pdfIn PDF document text
    • http://files.artisanbuiltins.com/uploads/1/3/1/6/131606345/lalazafonovukadej.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/1/0434/7471/4784/files/jajokuxexokuvefuzufani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/59845312070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9961/7448/files/labosigadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/nifudexitotaligixemosiruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/files/93224968186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/22229801075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikidewutuxazumal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/73830705774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4167/7731/files/tovasojopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/mepefavoxupuwudowu.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_off0000781e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781E 5076 bytes
SHA-256: fc2f8e66a7399186f16741a8ac4a3752660aac259fe1ed7eedf15bd307fcffe5
font_01_sfnt_off00008968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8968 15200 bytes
SHA-256: 00612b7fee9715dfdc24f2ec3809c5be3f81fc3a3b02025ce04482f8f2db80b5

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