Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec41f9c4229f389e…

MALICIOUS

PDF

37.4 KB Created: 2020-08-01 21:27:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8c30b99489c4fd83c56932cb5974cd4 SHA-1: 304a0198351612bf6a0b44de9c0cc23d2e67c02a SHA-256: ec41f9c4229f389ea30c5f48289339c6d5d4d7717c13db7ef0c136befd8c8edc
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on Shopify, suggesting an attempt to distribute malicious content or engage in SEO abuse. The ML classifier strongly flagged this PDF as malicious. The document body contains the malicious URL and other Shopify links, reinforcing the attack pattern.

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.ru/pify?keyword=washington+pa+dmv In PDF document text
    • http://files.wearecreativepause.com/uploads/1/3/0/9/130969427/xozanulajoxukot.pdfIn PDF document text
    • http://files.forestcityfarms.com/uploads/1/3/2/6/132682745/6574432.pdfIn PDF document text
    • http://files.caringlearningconnecting.org/uploads/1/3/1/3/131380210/8419119.pdfIn PDF document text
    • http://files.mrseppenbach.com/uploads/1/3/1/1/131163734/6416fc87318f5c6.pdfIn PDF document text
    • http://files.mysanelife.com/uploads/1/3/0/7/130775679/3863479.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/1/0427/7967/2735/files/80094978979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5751/1590/files/26865344674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/rixapapetenozosolezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6859/6117/files/18996605144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/lotulokewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/zolebalabawikotijorane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/58399836846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30611133668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3940/7784/files/61970472845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5031/9517/files/filikuzimadob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zemivok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/baxejoluboxowiboniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/nuvedemefiduwago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/34357170150.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_off00005367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5367 5320 bytes
SHA-256: d80282cd0a6bf9db8492f6b59bce460172367819d914fbc9e36e9b6d06412ba3
font_01_sfnt_off00006573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 10336 bytes
SHA-256: ca5fdf012a2b21f58dc348f39c8bb7361ace2ff331d94ae297c3c5d0c344c748

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