Malicious PDF — malware analysis report

Static analysis result for SHA-256 84896ad35ffbf918…

MALICIOUS

PDF

41.3 KB Created: 2020-08-24 21:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e39199b716ebc7b6bb5557b4018d77ec SHA-1: d18c767a54f31424a2de47c0d698279a86139f0f SHA-256: 84896ad35ffbf918f6986ca1116a75ad8b64aded69c17d39c162c28dc46d9483
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt to drive traffic to malicious infrastructure. The ML classifier strongly suggests malicious intent. The embedded URLs, particularly the redirector, are the primary indicators of this malicious activity.

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=i+am+so+lonely+song++hd In PDF document text
    • http://files.herewoodsart.co.uk/uploads/1/3/2/6/132681045/xomikuf.pdfIn PDF document text
    • http://files.anclotedesign.com/uploads/1/3/1/3/131398452/4940953.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/1/0438/6842/2309/files/analytical_methods_in_vibrations_leonard_meirovitch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9852/2014/files/puditexemizalojewetet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8630/0572/files/3592242651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/kitoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1112/6942/files/51188065844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/xoninijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/91541261525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/wawoxufukufufalufed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/banana_plant_information_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7451/8180/files/sitikebasezugobumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/divinity_original_sin_ps4_strategy_guide.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4600 5184 bytes
SHA-256: 35cf326b5ca8201f139db15b8013267d3d78ff6890359c2f8742757bf498d502
font_01_sfnt_off0000577a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x577A 9596 bytes
SHA-256: ac1801524b1b2d219dafc9abd6a4afd9e0d1ff24d6e80a5dd7be7a16a973e293
font_02_sfnt_off000078b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B5 18776 bytes
SHA-256: e58e8e8d3617fa2f52d62469859eb662c26c1c1537dc21f5cc6f1aa71eaa6aed

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