Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b664fcf48744bb…

MALICIOUS

PDF

51.4 KB Created: 2020-08-19 12:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: afe0215afc9f6baca8c35d8f18177430 SHA-1: b9c87d93f4a2759780775dd15d8157614dfa5b78 SHA-256: 10b664fcf48744bb2e4415f7c52e8728eaff02f1f4f9a0754da398336a889f67
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure, suggesting a link farm or SEO poisoning tactic. One prominent URL, 'https://ttraff.ru/pify?keyword=adobe+photoshop+7.+0+filter+software', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, indicating an attempt to lure users into clicking it under the guise of software downloads. The ML classifier strongly supports the malicious verdict.

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=adobe+photoshop+7.+0+filter+software In PDF document text
    • http://files.melodicfusion.org/uploads/1/3/0/8/130874067/101cf359940308c.pdfIn PDF document text
    • http://files.affordablehomeservices.us/uploads/1/3/0/7/130775665/9357012.pdfIn PDF document text
    • http://xedune.julietownsendstudio.com/uploads/1/3/1/8/131871493/1825179.pdfIn PDF document text
    • http://files.mungerink.com/uploads/1/3/1/0/131070918/37afc82d3233.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/1/0432/2154/9217/files/assassin_s_creed_bloodstone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/dutodisizoruji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3159/2102/files/59572515680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/56646215943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/phineas_and_ferb_season_4_episode_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2416/7591/files/composition_of_hydrates_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/95479466113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/37536084701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4545/3985/files/155592633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9373/6089/files/65189590284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7546/files/comment_fusionner_plusieurs_fichiers_en_un_seul_fichier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8765/files/63482562417.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 6

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_off000089f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F6 5604 bytes
SHA-256: 34898303bcc9d518e564e9b6e4aa1c005fdf0218a1ff41e55e0808b08e37d201
font_01_sfnt_off00009d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D18 10420 bytes
SHA-256: f4ec1483f06c491bf9c331dea9e1a823d1d42965bd894effade83d4003a4a61d

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