Malicious PDF — malware analysis report

Static analysis result for SHA-256 f11b1e28ad97c07f…

MALICIOUS

PDF

35.2 KB Created: 2020-03-16 12:19:18 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b97f9826ae4d66be45dbd42aa6f222cc SHA-1: c445d0c02aa430df63cb1e845263e6fe1b2c8b4e SHA-256: f11b1e28ad97c07fc77f284c835c93511a4306a7997bd95e47c5cd3a3e23526d
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named PDFs hosted on various domains. The document body text, though heavily obfuscated, contains a URL that appears to be a lure for a free movie, aligning with the 'link farm' heuristic. This suggests the document's primary purpose is to redirect users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://coolcaribbeanvacations.voyagerwebsites.com/uploads/1/3/0/2/130274263/130274263.html#chances+are+full+movie+free
    • http://modestotowingservice.com/uploads/1/3/0/7/130738731/bibawefuki.pdf
    • http://ausaudio.net/uploads/1/3/0/8/130874519/987f3.pdf
    • http://shilohrealty.org/uploads/1/3/0/7/130739559/2f28f.pdf
    • http://myr2consulting.ca/uploads/1/3/0/8/130813972/3340240.pdf
    • http://www.sddecorations.com/uploads/1/3/0/4/130476347/nibikenisegitonanozu.pdf
    • http://www.bandscontactingpainters.com/uploads/1/3/0/5/130545800/pademorivoxug-jajoruberim-dosopux.pdf
    • http://www.aadunsustainability.com/uploads/1/3/0/7/130739120/visomes.pdf
    • http://slpresource.com/uploads/1/3/0/5/130546543/d3f8a25a.pdf
    • http://cmsaggrk.org/uploads/1/3/0/7/130775015/a34d36363d2669.pdf
    • http://cavadhar.com/uploads/1/3/0/5/130588395/1971535.pdf
    • http://midcenturymomern.com/uploads/1/3/0/7/130739221/jugejupa_podabedizux.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006042.bin
f46cff4471b7515d59517f80f92e72be29110a1d01535ec750d827f28c2f5f63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6042 8176 bytes

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