Malicious PDF — malware analysis report

Static analysis result for SHA-256 34bbc2a709d8c476…

MALICIOUS

PDF

39.3 KB Created: 2020-08-03 16:56:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1d43292c8b33da1a5eeffb7e6bc7452 SHA-1: 58168eec2084ffa88729d1b20d9be1a25a14a658 SHA-256: 34bbc2a709d8c47679cb62e2afbc7a07f3888d8067759759705e06dc80c1b4de
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) designed to lure users into clicking on SEO-optimized links. This suggests an attempt to drive traffic to potentially malicious or scam-related content, likely distributed via spearphishing.

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=content+analysis+example+pdf In PDF document text
    • http://files.the-gym.org/uploads/1/3/0/7/130775493/5ff0292e3.pdfIn PDF document text
    • http://files.clarencecoastdbclub.com.au/uploads/1/3/0/8/130874482/vurivemen.pdfIn PDF document text
    • http://files.deborahjonesdesign.com/uploads/1/3/0/7/130776661/xedamasexegi_zovisale_mubomepomo_jolizodi.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/1/0441/2702/7352/files/basel_3_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/sizejumuxumud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/47317664089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6333/5326/files/48682675405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/tony_robbins_awaken_the_giant_within.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/vipizunolixafadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/factorio_steel_smelting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8394/6401/files/insomnia_vs_postman.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_off00005cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFA 5168 bytes
SHA-256: 7806489a445376c3e24f5a7d842f8b3c6f441598bffeb1aa50375817aa3f47b5
font_01_sfnt_off00006e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E90 10072 bytes
SHA-256: f6ec8055640b4ede09f2eb1b8e2dd926e46b1d7100e50e971615dab1935d0edb

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