Malicious PDF — malware analysis report

Static analysis result for SHA-256 208f60e47aecc997…

MALICIOUS

PDF

69.1 KB Created: 2020-05-30 04:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0baf189ea109c8f2aecf8fc775f2abb SHA-1: bf89a9d845e95854ce8c9e7c6237938208f5beda SHA-256: 208f60e47aecc9975bba388dfd906c112890e34d6ddf370a7d78072eed183a78
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary purpose appears to be directing users to various external websites, such as http://host9.carmichaelnl.com/uploads/1/3/1/6/131637755/131637755.html#lugar+de+m%25C3%25A9dico+%25C3%25A9+na+cozinha+parte+4, which likely host malicious content or phishing pages. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9805

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://host9.carmichaelnl.com/uploads/1/3/1/6/131637755/131637755.html#lugar+de+m%25C3%25A9dico+%25C3%25A9+na+cozinha+parte+4
    • http://clairebronchick.com/uploads/1/3/0/3/130313093/01fe8d1.pdf
    • http://mta-sts.thelanguagegarden.com/uploads/1/3/1/4/131407010/7204398.pdf
    • http://canilmontreal.com/uploads/1/3/0/7/130739024/famokofakuwo.pdf
    • http://henrycavillfantasies.com/uploads/1/3/0/7/130739517/vunozemopokiruk-fofegaginuzide-moler-jarerepevabiz.pdf
    • http://anitayorkstories.com/uploads/1/3/0/7/130740607/4beabb981e2ec4.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_off0000dcd2.bin
02893887b5471ac6341ae8611bfae30537d3f25c4cbd7f28068d00965463b9b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD2 14272 bytes

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