Malicious PDF — malware analysis report

Static analysis result for SHA-256 610599ec64a75b02…

MALICIOUS

PDF

35.9 KB Created: 2020-08-14 01:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 300410ef18790e050ff6e99bab8d52a7 SHA-1: 46f2c716df003dd919bd638dd22f056a112dbfd6 SHA-256: 610599ec64a75b024e0e96757e79c70f494efac330e3d8842fe69d75e041e7a4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to redirector infrastructure. The primary lure appears to be a 'Dungeons and Dragons character sheet builder', which redirects to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-linked PDFs suggests a link farm used for phishing or malware distribution.

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=dungeons+and+dragons+character+sheet+builder In PDF document text
    • http://files.hollandrunningclub.org/uploads/1/3/0/7/130775751/4313741.pdfIn PDF document text
    • http://files.alysonward.com/uploads/1/3/0/8/130813526/nuzuxagamur-bokekomaso-mowidalofuz-xavavujoxefad.pdfIn PDF document text
    • http://kavomi.allsystemsgoltd.com/uploads/1/3/1/4/131483337/lanomejix_zusuxupope_mobejizum_gutuxanapisebug.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/1/0431/0394/4858/files/76252783952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/34001021823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1987/5998/files/33782944832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6244/3675/files/exercices_atomistiques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8436/2407/files/tobasubus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/sareba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2885/6477/files/kalarigamakelewabed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/free_certificate_templates_for_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3537/6281/files/81401151151.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 1

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_off00004dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD1 5340 bytes
SHA-256: 42c7887e3145f7bd35c72e514abb372a50df6a9afd5597e090a7ec8eb67b3c9b
font_01_sfnt_off00005ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF3 10232 bytes
SHA-256: 63d1745dd5cfdc1acdefa2893af8387c0ae30ba8e04c39aa7268dc05ffc78cce

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