Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6754382509b5fe2…

MALICIOUS

PDF

31.2 KB Created: 2020-04-06 13:33:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 74320f65ec29289d90b9c98d07825615 SHA-1: 6a52514e580535ae58defeb8dd6b444aa6b09ede SHA-256: a6754382509b5fe2496145ef5caba9ed79b409b9e8859ae664cf032c54f9ba89
62 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially garbled, contains text related to 'Programa de español secundaria 2011 sep' and references wkhtmltopdf, suggesting a lure document. The primary intent appears to be directing users to a network of linked websites, likely for malicious redirection or content delivery.

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://klbhc.com/uploads/1/3/0/5/130546237/130546237.html#programa+de+espa%C3%B1ol+secundaria+2011+sep
    • http://mslichfield.com/uploads/1/3/0/6/130604874/f78c72e2ab3ee9.pdf
    • http://pawsanimalrescue.org/uploads/1/3/0/4/130483821/lovoluti.pdf
    • http://allaboutyourskin.com/uploads/1/3/0/5/130589033/2090625.pdf
    • http://kvggroupllc.net/uploads/1/3/0/5/130589050/xunapopepatudi_gonusamenu_xevazek.pdf
    • http://planetarydrive.org/uploads/1/3/0/5/130545957/naxetadisakaxis.pdf
    • http://isabellaquintanaortega.com/uploads/1/3/0/2/130287878/213580997bbfa.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_off00005001.bin
5f5f0b18baee1c157f10665a0a2dbd12f653159aede6706046b077b93cf9f7e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5001 8232 bytes

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