Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84278b14f96ced4…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 03:46:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e1414026cdf9f47b9fde69d81b5f841 SHA-1: 512d702e6eff4a95af63dfe93e5738365d496e4b SHA-256: f84278b14f96ced43a8cb2efa9a06ae8c1b13344465799b46e5670c28ad4432d
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated but contains references to the redirector URL and numerous other PDF links hosted on Shopify. This suggests a tactic to distribute malicious content or manipulate search engine results.

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.cc/pify?keyword=css+form+submit+button+color In PDF document text
    • http://burib.designdome.net/uploads/1/3/0/8/130813528/jonabevorufet.pdfIn PDF document text
    • http://files.whipcityshields.com/uploads/1/3/1/4/131483249/pekujoresunodas.pdfIn PDF document text
    • http://files.virginiadunn.com/uploads/1/3/1/4/131453623/8905940.pdfIn PDF document text
    • http://masizewuw.akblouisville.com/uploads/1/3/0/8/130873982/nesalizigevemevakiji.pdfIn PDF document text
    • http://files.manchesterartistsbookfair.com/uploads/1/3/1/4/131406701/jexoras-ruzibagedo.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/1/0430/6921/0773/files/wipisizenenen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1753/3597/files/edgar_alan_poe_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4161/1159/files/11627484955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4637/files/87675040718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/libros_kabbalah_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7009/5521/files/4080941377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6334/4280/files/14879433553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/25740472721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/18062049666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9850/3336/files/legugalexamuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4809/9991/files/relative_frequency_and_experimental_probability_worksheet.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_off0000657e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657E 4864 bytes
SHA-256: 52f956628062ace87e4cc2e0adad215a339dab769066c5059aa102a157cf4c7d
font_01_sfnt_off000075f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F5 10488 bytes
SHA-256: 4e66dc5b5b7cba7c34b15431eecbc461c6982a77882c399db62a0529cc871033

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