Malicious PDF — malware analysis report

Static analysis result for SHA-256 6541094c7264c222…

MALICIOUS

PDF

36.7 KB Created: 2020-07-29 22:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b993e50328d22f1ee42a77ece2470f8 SHA-1: f1e84016925c691d9acebcda985166c6ddde731d SHA-256: 6541094c7264c2229b42dfecd6bc5dcad0d91ca29db0b96fb1be8354f3df1490
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate search results, leading to a redirector URL (ttraff.ru). This indicates a phishing or malware distribution attempt using SEO poisoning. The ML classifier strongly supports the malicious nature of the file.

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=ac+to+dc+converter+nptel+pdf In PDF document text
    • http://files.cbsamuels.com/uploads/1/3/1/4/131438240/jufupowamisezatagos.pdfIn PDF document text
    • http://files.gso-printing.com/uploads/1/3/2/6/132682528/segeweginuwor_digizunegakav_tisogolesuli.pdfIn PDF document text
    • http://files.fortheloveofapet.com/uploads/1/3/0/7/130739835/b62c20561.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/1/0434/3244/4056/files/joxapigebolenesifid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1984/4258/files/subupunumazevafaruvedozot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/jigajozusukobigajoxusom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8569/3079/files/56811248495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/70066187193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3409/9362/files/danegadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/58578354858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/63595861785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3567/0166/files/zerajuledimisirejisinug.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 3

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_off000055dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55DD 4552 bytes
SHA-256: 18399ccb42fa2837dc180d1a8c34d340d8fb6806693ed927718a4d2e55605261
font_01_sfnt_off00006558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6558 9576 bytes
SHA-256: 3193b279f5f80c13d16eaef3e55d50768ff0e3b65dc1b8815cfedb9eba2e2128

Open this report in the interactive analyzer, or submit your own file for analysis.