Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e864a5dbd84a4c…

MALICIOUS

PDF

53.2 KB Created: 2020-08-06 05:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3576c91ff032982ec0dc536f77052fdc SHA-1: 39f0e6976d4166c7f91435ae0a458300b8c579d3 SHA-256: 63e864a5dbd84a4cda5dc1adfcd671b6834624c20afe2a5b458fae1edae75ca3
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, disguised as a lure for "woodworking workbench plans pdf". This indicates a phishing or malware distribution attempt. The ML classifier strongly supports maliciousness, and the PDF structure suggests it's designed to host a large number of links, likely for SEO manipulation or to spread 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.com/pify?keyword=woodworking+workbench+plans+pdf In PDF document text
    • http://files.kaushikthallapally.com/uploads/1/3/1/3/131381555/1790553bd1.pdfIn PDF document text
    • http://files.thepisceannomad.com/uploads/1/3/1/4/131438418/zilurafidok.pdfIn PDF document text
    • http://files.goldbergacademy.org/uploads/1/3/0/8/130874431/6026840.pdfIn PDF document text
    • http://files.bridgingbrowncounty.org/uploads/1/3/1/4/131437029/rapegoj.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/1/0433/8493/0462/files/99269578762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/zibigozebimeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5757/8137/files/pinizukasemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/sizisupexepekufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/14457563615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2783/2733/files/wejuvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2779/8944/files/joxokewitojasuresufanonak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7095/files/tizipalamasapab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1959/files/nisuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5991/2610/files/accept_file_input.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/davajumaroxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/levigak.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
🗂 Part of campaign: kaushikthallapally.com 9 samples

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_off00009007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9007 5724 bytes
SHA-256: df79044c54fdedfb7a1ea074c40d4870d4d8afd5836ace3bee2ba1906025fb4d
font_01_sfnt_off0000a39b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA39B 10528 bytes
SHA-256: 297b6499aab885ef8c2e5c9575f061e2b5464d2024c83d28a037ef3685a8a38e

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