Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e37c519bc3f910b…

MALICIOUS

PDF

34.2 KB Created: 2020-08-20 21:23:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68f51efcdd56e186b0a3a5179e2323d3 SHA-1: b7e24675051b6d43e23f1f85e4f6c09cd2d4c8b5 SHA-256: 0e37c519bc3f910b95241be63c8563f52e45d9e076ecbb5904dd05cc18be0c64
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a likely attempt to lure users to malicious infrastructure. The document body, though heavily obfuscated, contains the redirector URL and references to free downloads, suggesting a phishing or malware distribution lure. The ML classifier also flagged this PDF as malicious.

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=jeeves+and+wooster+piano+sheet+music+free In PDF document text
    • http://files.glabachfarm.com/uploads/1/3/1/3/131383838/lituxid-geribaxejejodaf-tutuboziro.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/1/0437/9354/7426/files/tinubipusunufufikazur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/xinamibevixidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/mufari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5379/1909/files/1782079638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8577/4502/files/airplane_crash_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/98004219612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/kozam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2538/2051/files/os_sete_temperamentos_humanos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xidegafizupewutuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/zefizazutisuruxobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/42923239977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/terry_eagleton_the_ideology_of_the_aesthetic.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 1

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_off00004690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4690 5504 bytes
SHA-256: 9fb5f59d2a9557576c45016548f8f3f81e0756821b4c2cd32edd38f581df5305
font_01_sfnt_off00005933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5933 10152 bytes
SHA-256: 7309d3e188ef4dc5eb18bc4a07578351bb75385b0321e20608ff2f0626bb42d1

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