Malicious PDF — malware analysis report

Static analysis result for SHA-256 d26ebbf76d724d88…

MALICIOUS

PDF

37.0 KB Created: 2020-08-02 03:04:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e21949ab78b6486760c7665cb7807bf5 SHA-1: 2603bf03bc75680fe606fe959e9c7e2ce83fb71e SHA-256: d26ebbf76d724d8894542a8b91db067e6ee6e9faecf018585af74c0768918746
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body and embedded links suggest a lure to download a PDF, likely leading to further malicious content. The ML classifier strongly supports the malicious verdict.

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=robbins+coulter+management+12th+edition+pdf In PDF document text
    • http://files.rodeoqueenofhearts.shop/uploads/1/3/0/7/130776490/4564493.pdfIn PDF document text
    • http://files.myped15.com/uploads/1/3/1/4/131437249/xaziwoner_fezomabazadis.pdfIn PDF document text
    • http://files.desertcrewphotography.com/uploads/1/3/1/6/131607232/b4d7d20c.pdfIn PDF document text
    • http://files.langleysawmill.com/uploads/1/3/2/6/132681359/9243976.pdfIn PDF document text
    • http://files.elrepco.com/uploads/1/3/2/7/132740214/119545.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/1/0436/0021/6232/files/zevodabem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2090/9735/files/wasasakobokifuribaxatazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8234/0770/files/88082972549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/mojegerutejukav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/46720997972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5545/files/nurubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1142/3912/files/94217012285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3997/2773/files/7446534033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/wojojagabitede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/72408504846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/ronajab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/bamefawijodibipasama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/dunubalexideg.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_off00005286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5286 5900 bytes
SHA-256: e1915b542f40872832f3d6e6b5d92dff6ccf508a993a24d2fa06d18148eaa378
font_01_sfnt_off00006676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6676 9504 bytes
SHA-256: a6c4329c87a29555f9d14a0aa4308e3b8ee8ca2b726ae6b809317afa45a74d2e

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