Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d241c1d9b10e39d…

MALICIOUS

PDF

182.5 KB Created: 2020-08-19 07:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b95da9da3303ecf06ea76c0b6e0f4d8 SHA-1: 9e484c33340036928a9b88052720ad702b98c90f SHA-256: 0d241c1d9b10e39d6a70ed836b0c45a011bd153fd35fe34d3d8839e56a47c6b2
142 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to lure users to a phishing or malware-hosting site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bsaci+milk+allergy+guidelines In PDF document text
    • http://files.athensprep.org/uploads/1/3/1/3/131380870/vukaga.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/1/0434/3146/1016/files/system_dynamics_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0499/2421/files/kifebumubabimagagepudip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/11654446407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/52414021541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6958/7107/files/network_film_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7358/3781/files/67804624884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0462/3010/files/goboloperizenureji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/lavimokatisuzafisiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/82439625393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/61497969607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7945/0272/files/vejisepimudabuvilokod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/9748936814.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002765e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2765E 5476 bytes
SHA-256: 5c821a0f683fcaf11b1285144c7632a2af36fec09174119e2d74675761897636
font_01_sfnt_off000288e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x288E3 14548 bytes
SHA-256: 4eefee75f71559d577c001ab09cb752976cbc5fbaf1133d1bc49f528c11f3de6
font_02_sfnt_off0002b739.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B739 16060 bytes
SHA-256: 4ef9506ee11a349461550e6b437e3786686b598308a87786035880d16624999d

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