Malicious PDF — malware analysis report

Static analysis result for SHA-256 fde079878486d1d9…

MALICIOUS

PDF

41.9 KB Created: 2020-08-02 19:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d04866a2f2c71507a8215a45417f5e5f SHA-1: b06f01d2d60e09c352325f5d50fbca96063cf70a SHA-256: fde079878486d1d9b618a2721631deb8ffb787ebbec7761ab8a4ec917abf15f6
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector URL, specifically 'https://ttraff.ru/pify?keyword=e6%2525+a2%2525+85%2525+e8%2525+8a%2525+b1', which is flagged as malicious. The document also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or malware distribution attempt.

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=e6%2525+a2%2525+85%2525+e8%2525+8a%2525+b1 In PDF document text
    • http://files.thewaveindustries.com/uploads/1/3/1/4/131413837/a1b902b2.pdfIn PDF document text
    • http://files.ladysarah.org/uploads/1/3/1/3/131381046/togefuzilu_bunogaridolif_tukafijimif.pdfIn PDF document text
    • http://files.jennlogg.com/uploads/1/3/0/8/130813461/gogatenugo.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/1/0433/4705/0661/files/36664708031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/24154813383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5041/8847/files/gujubomusofiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/tidutolarebawoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/bibuvonimokutonimekobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/98667430687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3911/9765/files/krita_transparent_background.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/47869580705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/xogunedijozobufipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1590/5185/files/19193044821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/71813184125.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_off00005f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F83 5360 bytes
SHA-256: a3cbcabf47f778da740b3cb6dfe3b8232f9a90ccec65cbf7dc1d75e1f1aaf1b9
font_01_sfnt_off000071c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C5 12204 bytes
SHA-256: b56ab8b4286f0801b408ef5084ee5f07496d9b8130749d40dd7fcc1c5a89b749

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