Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a07015ad00fa24…

MALICIOUS

PDF

49.6 KB Created: 2020-07-30 12:48:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb3aee90061c86ecc9385d8172cbaab9 SHA-1: d2e3d18745f8efc000a80dc7dc430933fc529bb6 SHA-256: 39a07015ad00fa24c9b67b9e29738b3a5d3f43b079ad1a35084b794441d93dc8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, appears to be a lure related to writing an article, suggesting a phishing or scam attempt. 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=comment+r%25C3%25A9diger+un+article+de+journal+en+anglais+pdf In PDF document text
    • http://files.mounthollywood.org/uploads/1/3/2/6/132681976/ritaxitukada_kasugufuvu_jutikugaw.pdfIn PDF document text
    • http://files.oakmont85south.com/uploads/1/3/1/0/131071082/5ddb6.pdfIn PDF document text
    • http://files.envisiononeness.com/uploads/1/3/1/0/131070561/1388295.pdfIn PDF document text
    • http://files.callaneventplanner.com/uploads/1/3/1/3/131397996/difezimid-fivijefav-waxituson-xireb.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/1/0440/7800/6437/files/61482797679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/20892409395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/54502736415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rimudunibodosugesujusuvud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/23782653093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8455/4135/files/10630664248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/18633829937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/28829351209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/63908029223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7814/7491/files/62932262354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2101/files/24405919759.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_off00007f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F40 5596 bytes
SHA-256: 59ad6040317a370d0f47596cf79335808d96706f2e44a0fa3678a7203204f030
font_01_sfnt_off000091ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EC 11612 bytes
SHA-256: 48500941a5473aed32116c9d39d889498ed6ddf98775006fe68efa15764f168a

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