Malicious PDF — malware analysis report

Static analysis result for SHA-256 febf6ba42a3e9388…

MALICIOUS

PDF

32.7 KB Created: 2020-08-01 09:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82649257b8e46db59caac8cf6fe94fe3 SHA-1: 6a3680f081cea1ad1af8cdc10f987bfc5adae928 SHA-256: febf6ba42a3e938859d74c9a47dbead54e9a276cf6450a9c0ac4133e0cdc4a59
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of numerous external PDF links suggests a link farm or SEO manipulation tactic. The primary malicious URL is https://ttraff.cc/pify?keyword=accuweather+norfolk+ne, which likely leads to further malicious content.

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=accuweather+norfolk+ne In PDF document text
    • http://files.landfallcert.com/uploads/1/3/0/9/130968931/e8d1504.pdfIn PDF document text
    • http://files.thesoundingboardteachingministries.com/uploads/1/3/1/0/131070045/kevisadamawok.pdfIn PDF document text
    • http://files.woolardcoinsupplies.com/uploads/1/3/1/0/131070152/lomatejafumam.pdfIn PDF document text
    • http://files.dad-ventures.com/uploads/1/3/0/7/130739802/runirofopesu.pdfIn PDF document text
    • http://files.armstrongchoirs.org/uploads/1/3/1/3/131383318/zoribasefuzowep.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/1/0429/8548/8543/files/wakoxodizujilurifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5375/1189/files/239370106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/64665922651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/59573441520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/juginizepoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nanejixiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/98109195340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/6344710334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/2893048308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/75874304076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/jexikabimikurug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/lupebemuzifutosipilokato.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_off0000464e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x464E 4936 bytes
SHA-256: c41343a81dd1b2a9536a59260c254dd5b5540cb80e507967999c18f6760c0282
font_01_sfnt_off00005728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5728 9148 bytes
SHA-256: d03f1a64ba9a87e89cd95324402455a73852a749ef47de8c40c6c730a1935ce5

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