Malicious PDF — malware analysis report

Static analysis result for SHA-256 03fd6d79577f2329…

MALICIOUS

PDF

66.3 KB Created: 2020-08-02 17:55:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc39ad0a20a5a78dd7791a69c45b7a88 SHA-1: f534c269f9e0430993de3ad58d9e451b746fbe2e SHA-256: 03fd6d79577f232995e4cabd26a78970035156271e7e5152fbbe3bc2eb0f28aa
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com), indicating an attempt to lead users to malicious content. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it acts as a link farm, with one URL specifically identified as a malicious redirector. While no scripts were extracted, the structure and embedded links suggest a phishing or malware distribution lure.

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.com/pify?keyword=international+calling+codes In PDF document text
    • http://files.mrdoran.co.uk/uploads/1/3/1/3/131383330/6336880.pdfIn PDF document text
    • http://files.koshercorner.org/uploads/1/3/0/7/130775784/sewon.pdfIn PDF document text
    • http://files.kamariawilliams.com/uploads/1/3/1/4/131482822/gitavozibo-xivuru.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/1/0430/6855/5415/files/63896580312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/74920293568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/pidikubajipitebawuxigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/zuxowulapavefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/4336329383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/49745439636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/ganularafubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/pobevaxarifudojavinerepup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/20231107602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.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 5

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_off0000ba5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA5F 5044 bytes
SHA-256: 09365fe46e5aa19cddb36670a94c00261f18b085000d6d8bd212b24dbea1ab1f
font_01_sfnt_off0000cb8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8C 16048 bytes
SHA-256: a1f1e6c285ed216c46848c9b11c7181cfe29d560bb23dab360b7d587f0294604

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