Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e5734663756fae…

MALICIOUS

PDF

40.7 KB Created: 2020-08-06 18:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38a03b2e3dea0f095d11943e3cecb006 SHA-1: 2b4a5fa6e13167cb7f1d329788e3753a0942fad9 SHA-256: 86e5734663756fae74d5dd4c8344b59e8f923a6dbf8951d04ce5216e02270a58
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.ru/pify?keyword=air+fryer+cookbook+pdf+ebook'. The document body and embedded links suggest a phishing lure, masquerading as a free cookbook download to entice users to click the malicious URL. The ML classifier strongly supports the malicious nature of this PDF.

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=air+fryer+cookbook+pdf+ebook In PDF document text
    • http://files.goldenrootgardening.com/uploads/1/3/0/8/130814680/5d72fb.pdfIn PDF document text
    • http://legux.kilmerschool.org/uploads/1/3/1/4/131438177/1939178.pdfIn PDF document text
    • http://files.gabeeyrich.com/uploads/1/3/1/3/131398143/kerafokumij-volotug-xugarawow-tukazenap.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/1/0433/8391/4654/files/ximawede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/87995998873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/65605543719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/pujubasumubizesunival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/82826191374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7742/7609/files/23385330122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/24911367705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0294/3899/files/95689061428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/56927381041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/67837603053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/monazata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0588/5090/files/barefoot_investor_2020_download_free.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 5

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_off000062b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B3 5024 bytes
SHA-256: 87d50f9c5ec9b36d82666595edd61575e22c09560222804bace32bc853045a6e
font_01_sfnt_off000073eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EB 9932 bytes
SHA-256: 2fe7001a87bf36bd742cf8bd370e44c00b9765949718d434a7ae4dc9c7814913

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