Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d31fadb942b8f7e…

MALICIOUS

PDF

44.0 KB Created: 2020-08-05 03:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25c2eefe34bbaa158caf496bcabecb35 SHA-1: 8da3d71fa3ebaaf60573984f3dacdb787eb76ba2 SHA-256: 8d31fadb942b8f7e22c5daff6b2ee62a699423365274db8741914233d21b941d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document also hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL confirms the intent to lead the user to a harmful destination.

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.cc/pify?keyword=social+psychology+elliot+aronson+pdf In PDF document text
    • http://wegivijeg.boardgameseverybodyshould.com/uploads/1/3/0/8/130814397/8504904.pdfIn PDF document text
    • http://files.cvpsecurity.com/uploads/1/3/2/7/132740692/2673850.pdfIn PDF document text
    • http://files.inkandoakdesignco.com/uploads/1/3/0/8/130873869/wawasivitikidiv_kabazaraw_rurokede_jikewidipisudes.pdfIn PDF document text
    • http://files.sassmm.org/uploads/1/3/0/7/130776168/kagisufemu.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/1/0428/9835/8432/files/83583068491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/falufubalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6007/5427/files/62333327857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/53514727925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6139/5102/files/81650120361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2060/5848/files/49833002524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/61461175639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2307/9323/files/atropina_prospecto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/kupagexatetirewedub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/23090857956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5942/1092/files/98142732518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/pdf_file_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/57800971055.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 7

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_off00005e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9D 5620 bytes
SHA-256: ce615cace8c376ebb42a2e6ac708113b4d07abaa633dc8b22d0a351061f5469b
font_01_sfnt_off000071bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BC 15168 bytes
SHA-256: 511370a5df3a54c43baae388f24eae711e9c2742f0a226c7d0be7aebdeaa71d1

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