Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f13be01e45b9e7…

MALICIOUS

PDF

20.9 KB Created: 2020-04-08 06:56:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 45fb94457794d57587ffe52396e5dc53 SHA-1: c8111e498d9edd5ff4ecfe4992c0546a29d8f1c1 SHA-256: 76f13be01e45b9e77228b06da28b6097c50e064cd5218aaf9689c8f2dd591ad7
94 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which point to other PDF files, suggesting a link farm or redirection mechanism. The document body, though partially corrupted, contains text related to downloading a book and includes URLs that likely lead to further malicious content. The ML classifier strongly indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://customizeddecoronline.com/uploads/1/3/0/2/130291800/130291800.html#descargar+gratis+libro+de+instrumentacion+industrial+creus PDF link annotation
    • http://sdorsher.com/uploads/1/3/0/4/130483300/4424827.pdfIn PDF document text
    • http://thefurnitureguy.net/uploads/1/3/0/5/130539428/kakiji-xamesu.pdfIn PDF document text
    • http://colororacle.com/uploads/1/3/0/5/130590592/bijagi.pdfIn PDF document text
    • http://clonmannoncarecentre.com/uploads/1/3/0/7/130739513/dupomili.pdfIn PDF document text
    • http://www.classicmassagestudio.com/uploads/1/3/1/4/131438127/183c192133009.pdfIn PDF document text
    • http://accentusdirectllc.com/uploads/1/3/0/8/130874413/solezawu-nawumawor.pdfIn PDF document text
    • http://15810heacock.com/uploads/1/3/0/5/130551050/pemetoxovaxije_benezok.pdfIn PDF document text
    • http://fithalo.com/uploads/1/3/1/4/131413275/zuzifaziguni_bafatofa_mijuzevose_pabedubon.pdfIn PDF document text
    • http://thejohnleehaynes.org/uploads/1/3/0/8/130873996/9963384.pdfIn PDF document text
    • http://gallery-lesmemoiresdejacqmotte.com/uploads/1/3/0/7/130740133/tobepudepotupofo.pdfIn PDF document text
    • http://sospop.net/uploads/1/3/0/7/130776526/zekuvikasopoxe.pdfIn PDF document text
    • http://klubfmcork.com/uploads/1/3/1/1/131164552/19d72b39f2b6bb.pdfIn PDF document text
🗂 Part of campaign: 15810heacock.com 5 samples

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