Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aad5204beba00f5…

MALICIOUS

PDF

41.4 KB Created: 2020-08-02 11:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed7ce9694c92683126441a2bc86f2fbc SHA-1: dc8db4928209385b600428203385c87750903445 SHA-256: 5aad5204beba00f55bde52634c354177540a41d0aa226b1f824bf2a9e6762a3f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one that redirects to a known malicious URL (ttraff.ru). This URL is part of an SEO link farm designed to phish users for free downloads. The ML classifier also strongly indicated maliciousness.

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=six+foot+seven+foot In PDF document text
    • http://files.canoetaxi.com/uploads/1/3/1/1/131164524/gogopug_lujonikigikup_mafano_gazigimuxe.pdfIn PDF document text
    • http://files.andrewogus.com/uploads/1/3/0/9/130969176/4478656.pdfIn PDF document text
    • http://files.fairytalefit.com/uploads/1/3/1/4/131407709/komaxakupodaveg-favemezasek-walivuk-deliwixe.pdfIn PDF document text
    • http://files.steveatkinsondesign.com/uploads/1/3/2/7/132741089/9222032.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/1/0433/8201/4108/files/pesoginafazap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijovosulodomozov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/jufuvuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/deregelabugufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/wivorazekizokiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1002/files/44571899392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/jazenux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/porubibagolij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/96664887401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8715/0752/files/wixotuxunejalulaxava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/85351969443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugerivedisabuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/64565021284.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 7

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_off000065de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DE 4656 bytes
SHA-256: 2cce91bc58fe39b0d981f764fbbeb97e5888b1fc53edf16aab532b8a1917dba1
font_01_sfnt_off000075d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D9 10232 bytes
SHA-256: 794ae50ac3b79fadd5db07554c9747cf3713e94e208ade61a703a072b93fa62c

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