Malicious PDF — malware analysis report

Static analysis result for SHA-256 11dec38a1d5f22e4…

MALICIOUS

PDF

32.0 KB Created: 2020-08-19 13:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3c686697809974a240f958b2f068280 SHA-1: fae7eea17aaaa5c7d22e362c95bbd79f4faf86b8 SHA-256: 11dec38a1d5f22e42e4dd84bb5810606fe25d6bfc2886d8edc85c6a5447f16b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary redirector URL is identified as malicious, and the document body itself contains this URL, suggesting a phishing or scam attempt. The presence of numerous links, many pointing to Shopify, indicates a potential SEO poisoning or link farm tactic to obscure the malicious destination.

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=bhakti+video+song++2019 In PDF document text
    • http://dutid.simplyseasideorganizing.com/uploads/1/3/1/6/131606407/gitituwawikanub.pdfIn PDF document text
    • http://files.dcglam.net/uploads/1/3/1/8/131857756/5afc0e31addafb1.pdfIn PDF document text
    • http://files.ewan-macintyre.org/uploads/1/3/1/4/131438567/7b671f4714d0b.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/1/0429/2182/0319/files/vabisawewukireletuviwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/beginner_workout_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0522/1784/files/ralojavadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/medicina_alopata_ventajas_y_desventajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/8830481397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8262/9798/files/duposefijexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/possessive_pronouns_english_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/upper_intermediate_reading_comprehension_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/suxojov.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 2

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_off00004230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4230 5612 bytes
SHA-256: 8949e7cb89d6532ee8bdf77fe3232eb5462df2d506524b62a33f34020ea58871
font_01_sfnt_off00005553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5553 8920 bytes
SHA-256: c7aa0947341969b3980cc4f49515a82aa9304c53e14e3bc56f1ddaa5b876fbaa

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