Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0fc5aca533f16d…

MALICIOUS

PDF

32.7 KB Created: 2020-04-09 04:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b5f13c012ff90269a80a551ce9cc8be SHA-1: 84eaa717676a4ae720d52bc633704d6259356a1d SHA-256: 7e0fc5aca533f16de2f6cdaa0631fc4180ca41d0b7722c8e3baedec75db599ba
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links predominantly point to domains that appear to be part of a link farm, suggesting a coordinated effort to distribute malicious content. The document body, though heavily obfuscated, contains one of these URLs, indicating it is embedded within the file's content. No scripts were extracted, but the sheer volume of suspicious URLs suggests a primary function of redirecting users to potentially harmful sites.

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://cagedliiun.net/uploads/1/3/0/6/130620587/130620587.html#brown+and+tan+mini+dachshund+for+sale
    • http://parformancefitness.com/uploads/1/3/1/3/131398186/falinokaxi.pdf
    • http://procorebuild.com/uploads/1/3/0/7/130775619/befeg.pdf
    • http://annamonroecosmetics.com/uploads/1/3/1/0/131070727/7815508.pdf
    • http://dearjonesmusic.com/uploads/1/3/0/7/130739648/9620470.pdf
    • http://clclaredo.org/uploads/1/3/0/3/130323120/3742604.pdf
    • http://precisionhomeinspectorsfl.com/uploads/1/3/1/4/131437667/2971ccc0271003.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_off000056da.bin
e959c8b60772ca996a63953c454074b5040191f11832806b96bcb2ded95b76fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DA 7564 bytes

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