Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e4c046e2ec6852…

MALICIOUS

PDF

35.2 KB Created: 2020-08-11 00:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3dfab89350acd3dc615c279a9cabc241 SHA-1: 23ec84224059feec485d160f6cdf41b8ae5b77af SHA-256: d2e4c046e2ec6852fe29ba13dcdf8ea60c2ad7a1cb43563bc4e6a701589a8212
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, though corrupted, includes the URL 'https://ttraff.com/pify?keyword=stochastic+calculus+for+finance+pdf', suggesting a lure to disguise malicious activity as a document download. No scripts were extracted from this sample.

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=stochastic+calculus+for+finance+pdf In PDF document text
    • http://files.justmichiganmade.net/uploads/1/3/1/3/131380480/fexone.pdfIn PDF document text
    • http://files.meadowlakecatholicchurch.com/uploads/1/3/0/8/130874513/e077c123.pdfIn PDF document text
    • http://saxajewos.piloted.org/uploads/1/3/1/4/131453990/7892925.pdfIn PDF document text
    • http://files.auscamfreedomproject.org/uploads/1/3/1/4/131437530/domejafofovafi_ratewefutu_remavixoxufinuk.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/1/0433/0687/7080/files/53741046047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3600/8870/files/xopotuxipajazaxopunep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/deweputililirope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1037/5325/files/18858867360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6809/4629/files/66731684237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/waduxefifiposubuwokafuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/xuxulan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5365/9798/files/93443236409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/45107029062.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6E 5344 bytes
SHA-256: 893e0d79df89bdba2972bd273143d9b192c478fdd9d572fdb095282566e8af2d
font_01_sfnt_off00006082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6082 9272 bytes
SHA-256: 9685863919d2960d78c024681390d41a55e7fa580da4d3a73af011cefffbac9c

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