Malicious PDF — malware analysis report

Static analysis result for SHA-256 38592d571f407739…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 09:58:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac69163a75a5d287cf43df208f32a408 SHA-1: 587cb31b0c3ad019bdac10b91da76f80d09f1e94 SHA-256: 38592d571f407739599e2c5fd056aa94b2fbd5562c6744c9773643c33e044492
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a specific malicious redirector URL. The document body, though heavily obfuscated, contains the text 'How many years is a million seconds' and the malicious URL, suggesting a lure to a phishing or scam page. The presence of numerous external PDF links points to a link farm strategy, likely for SEO manipulation or to obscure the final malicious destination.

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=how+many+years+is+a+million+seconds In PDF document text
    • http://files.breadfromheavenbypam.org/uploads/1/3/0/7/130776861/tovovodawa-lebakijededov-kerajefunusibep.pdfIn PDF document text
    • http://files.maroonandgold.net/uploads/1/3/0/7/130775249/40614e1d6c.pdfIn PDF document text
    • http://files.rosesfloristbiloxi.com/uploads/1/3/1/4/131406365/1731626.pdfIn PDF document text
    • http://files.prudhoelocalhistory.com/uploads/1/3/1/4/131482941/076f2d1c35c.pdfIn PDF document text
    • http://files.1320am.com/uploads/1/3/0/8/130814666/7264356.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/1/0432/3773/6603/files/61828303724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikakaxudote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/33994269838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/80623559331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/lixabufatez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1099/7921/files/38939067130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/ruwakoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/boleva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5719/8757/files/vigaxituxiziwobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/zanuzazomevutif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/3842815990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/56887077991.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 6

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_off00006d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3E 5240 bytes
SHA-256: c4317b4260c99726c51746db5aa7d8ff541e18e7105b9d156dbd23a3fbde18f6
font_01_sfnt_off00007f06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F06 11024 bytes
SHA-256: 597427acef2702be96b1fed38514868980e3661bc2b9c9e545d01e156f499504

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