Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9211537b538f189…

MALICIOUS

PDF

43.6 KB Created: 2020-08-09 15:04:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39e084228aae5d0caace2d4f8c8ff021 SHA-1: a0f91c317249ca14231cdf23519ef0b42fe4e512 SHA-256: e9211537b538f1892fe8b401dccda0279c281b86619f110025e471b999bf1f87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure related to a D&D character sheet, which is then used to direct users to a malicious URL. The ML classifier also strongly indicated maliciousness.

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=d+d+5e+alternate+character+sheet+pdf In PDF document text
    • http://files.maldiver.net/uploads/1/3/1/8/131856270/6613979.pdfIn PDF document text
    • http://files.tomaslundquist.com/uploads/1/3/2/7/132710659/3712823.pdfIn PDF document text
    • http://files.stellasbakery.store/uploads/1/3/1/4/131437515/xofugosig_xilevifilupate.pdfIn PDF document text
    • http://files.nspirehomesolutions.com/uploads/1/3/1/4/131406412/jasov.pdfIn PDF document text
    • http://files.slideranchmerchandise.org/uploads/1/3/0/7/130739313/3913116.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/1/0428/9639/2348/files/68042027033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9829/1870/files/buxagiwovagupovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6605/5063/files/97749559426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7179/0486/files/wupavexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/bujifidokenin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4157/0466/files/32528118485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/delutoludokujadokil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5955/8053/files/25908270490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/zofujapagapopaxapanasemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0844/0990/files/49992885129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/25142905433.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_off00006ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE6 5368 bytes
SHA-256: cd02b4b9f32ce6e7eafdcbb8ede5aa5f66151c9ac2ee74bdf1b6c3d06bd0e2f9
font_01_sfnt_off00007d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D28 10616 bytes
SHA-256: 476b551a11c685822ce7ba382e405173f1d875057de501b2084dc2c78d09b554

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