Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee648a3ed7a7e921…

MALICIOUS

PDF

42.1 KB Created: 2020-08-08 10:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0c75850eb742bca93f59bd53171de20 SHA-1: 42d2242b24590cc3e5fdf551ee69a876e1871087 SHA-256: ee648a3ed7a7e9215470761b61f6ade69782f5269188a36161e4e4ff90ebf4dc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to obscure the ultimate destination. One of the primary links, 'https://ttraff.ru/pify?keyword=bernard+baruch+book+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Bernard baruch book pdf' and the wkhtmltopdf generator, suggesting a lure to download or view content, which is then redirected to malicious infrastructure.

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=bernard+baruch+book+pdf In PDF document text
    • http://files.lynnmehalart.com/uploads/1/3/0/7/130738596/bogawa.pdfIn PDF document text
    • http://files.magicmangocreation.com/uploads/1/3/1/4/131409009/dexidasurotivo.pdfIn PDF document text
    • http://files.littlelighthousepreschool.com/uploads/1/3/0/7/130776111/gogebu_xezemugev_sunupusu.pdfIn PDF document text
    • http://tudebat.creativewebsites4you.com/uploads/1/3/0/8/130814058/zawigodikubaluje.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/1/0430/8847/8365/files/64944810612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4252/9695/files/zawupedomapanupunejupita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/quimica_inorganica_libros_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/4405368732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/saints_row_4_character_creations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5837/3542/files/80171376488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3567/0166/files/tumobuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/98182730666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/47265413558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/65703098898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0826/files/20940737202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/ansi_c_balaguruswamy_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0379/5877/files/87523717743.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_off0000657d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657D 5284 bytes
SHA-256: 1d8b2e09f9b1d2dde48e6351b966bd8080b20693f34f6db119a7a722ec47c488
font_01_sfnt_off0000776f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776F 10672 bytes
SHA-256: 11af4803e3ce9afe9fdd419d34dbf3dc3f1250a45877238bec631bb818a74dc0

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