Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a006f3568310632…

MALICIOUS

PDF

65.4 KB Created: 2020-08-06 20:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cdc49e63cb490fbb9e14abeb34c34ea SHA-1: bd33b0263f39a6b2521656043ee6327c68e8d4f4 SHA-256: 7a006f3568310632958157c8b45949675941a17f39c1ab17d8eed79297d55320
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector infrastructure, specifically pointing to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL. This indicates a clear attempt to direct users to a malicious site, likely for phishing or to download further malware. 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=digestion+of+carbohydrates+in+non+ruminants+pdf In PDF document text
    • http://files.labandmasters.org/uploads/1/3/2/6/132682883/sogugoted_befivufenoxufe_filozapefus.pdfIn PDF document text
    • http://files.dthaikitchenthornwoodny.com/uploads/1/3/1/4/131484603/gejaruwi-zibojebelomu-lukezolalobe-zuzav.pdfIn PDF document text
    • http://files.wedronecostarica.com/uploads/1/3/0/9/130969855/3fcee.pdfIn PDF document text
    • http://files.felicecurcelli.net/uploads/1/3/0/7/130775701/6621894.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/1/0427/5827/5238/files/zunazij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2661/2378/files/26232865653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0147/files/xokaridodofagawelib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5408/8871/files/97391836990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/banudofiburu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/kijok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8091/6893/files/pujiwopezude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/xeresodevebotimulixelibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/35117307677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/95348589106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5982/2244/files/pofofalera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7347/8560/files/semivimodupuzugidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0617/3077/files/baby_driver_full_script.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 8

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_off0000c190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC190 5780 bytes
SHA-256: d7e35c74125363c5407ef4fcbc68b3613c643fd312fa50daec478070d3a56c12
font_01_sfnt_off0000d51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51E 10136 bytes
SHA-256: 63871234ce5dcba175da8484a24b186d17f8082a0ec8333a286d2c9736157667

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