Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d38200227652e61…

MALICIOUS

PDF

46.5 KB Created: 2020-08-02 05:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ea279ec760b83433e865ee4fb90b75b SHA-1: ff98d0eda00a1e1879a5db1f22c04990b573f7b4 SHA-256: 6d38200227652e61f6f62b0d39cc3ed539b3f2c95d686cdf88df165ca5c316c2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that ultimately leads to malicious content, disguised as a holiday calendar. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-optimized PDF links suggests a link farm designed to distribute malware or phish users. No scripts were extracted, but the PDF structure itself is used to host and redirect to malicious URLs.

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.com/pify?keyword=national+holiday+calendar+2016 In PDF document text
    • http://files.countryliberal.org/uploads/1/3/0/7/130739201/4658338.pdfIn PDF document text
    • http://files.stephendoughtonfoundation.org/uploads/1/3/1/4/131406841/4756f72b16.pdfIn PDF document text
    • http://files.thecharestlab.org/uploads/1/3/1/3/131381374/xatetoko-warigeriraridiv.pdfIn PDF document text
    • http://files.smuapolitical.org/uploads/1/3/1/4/131407423/8780696.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/61115776721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/92338140111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4466/files/togitojabikakijepexotavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6493/7896/files/tv_azteca_m3u.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0756/5214/files/wefudomenotusunane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/60617540236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9979/8166/files/73527484828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/vuvutewawuzatejefaxigojab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/4407746560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8696/files/1416731191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/wudemufesafew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/didajesegul.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6871 5188 bytes
SHA-256: abbc4adc2a3d80c6d98e853c2874ecbf55a8df43b0da09b692239e1696475278
font_01_sfnt_off00007a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A06 10844 bytes
SHA-256: d881f4c26422d4f82f0a9b83c95099f4ac03bc124a4b6a4fd89f9607152b8c54
font_02_sfnt_off00009f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F21 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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