Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e4709fa3be0296…

MALICIOUS

PDF

43.5 KB Created: 2020-08-01 00:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8572cbacff12f06c92ee7bdd83e5027f SHA-1: a8ca4651df11216a73ee074c487f88cd958ab465 SHA-256: 86e4709fa3be02968250b31a58090b77001a04769ca721e2570914f8509f1ee0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links pointing to a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this sample as malicious. The primary IOC is the redirector URL, which is likely used to funnel victims to malicious content.

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=mining+trainer+orgrimmar In PDF document text
    • http://files.nonakaconsulting.com/uploads/1/3/1/0/131070247/7419a27ccca263.pdfIn PDF document text
    • http://files.spanishhorsebreedersuk.co.uk/uploads/1/3/1/1/131163976/a01281e51a75f.pdfIn PDF document text
    • http://files.mywinningjewelry.com/uploads/1/3/1/3/131383754/6696617.pdfIn PDF document text
    • http://files.katherinedolen.com/uploads/1/3/1/8/131856394/6281d3449a.pdfIn PDF document text
    • http://files.vanessajaynefineart.com/uploads/1/3/1/4/131453990/buwotolozebageb_pileramate_topozok.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/lomapatigusobotatijizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/febulupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8695/4139/files/duguxewavananabopebis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/livoderiniwedesazuvikag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/48618015626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/31107824328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2097/files/43464154147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/dolejusiwud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/mamatuj.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_off000064c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C4 4800 bytes
SHA-256: 0c135e9e8924e60aa55b11e8e3a3f1816cd14249ca1773105c51b9e5af2e92c1
font_01_sfnt_off00007510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7510 14524 bytes
SHA-256: 825cae6c24f828fc979108699bc425b50f8f5beaa023008575e569acc6829ec4

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