Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db4d549535bdbab…

MALICIOUS

PDF

46.1 KB Created: 2020-07-29 14:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 907813d3673aac5580c228518ed29026 SHA-1: 63b17c4e3e7a0aa6abcfd0ce7c8f89adc4e32842 SHA-256: 9db4d549535bdbab3717df457644d7b3d3d3174b3884b1750a02851cfe2853b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains numerous links, identified as a link farm, designed to redirect users. The primary malicious link points to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Bellini recipe book pdf', suggesting a lure to entice clicks. No scripts were extracted from this sample.

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=bellini+recipe+book+pdf In PDF document text
    • http://files.alloccasionsevents.com.au/uploads/1/3/2/6/132695352/3981991.pdfIn PDF document text
    • http://files.theoverflowingbookshelf.com/uploads/1/3/1/8/131856212/kobugebufumanefufi.pdfIn PDF document text
    • http://files.feltham-twickenham-ps.com/uploads/1/3/0/7/130738790/2177235.pdfIn PDF document text
    • http://files.karaikudivoyage.us/uploads/1/3/0/7/130775398/1254706.pdfIn PDF document text
    • http://files.oscarbaptistchurch.com/uploads/1/3/1/3/131398366/6673904.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/1/0430/9165/6855/files/43294931003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/13195582965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2647/2347/files/22240316969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1113/5894/files/xigaziwivaxatujig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/disagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/kumubixugiwilidokuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9855/5043/files/68791067323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demesudixagivok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57189589950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6067/files/33637837584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/vilolaxubiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tedix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72619586694.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_off0000763f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x763F 4720 bytes
SHA-256: 5a824a4425276707799403e92554115541413f245649adb54091d50d6ff2797c
font_01_sfnt_off00008640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8640 10792 bytes
SHA-256: 8e81540e5cae4b6d44198bb33de7bed385bb63fafed3a71e10ce936b379b5169

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