Malicious PDF — malware analysis report

Static analysis result for SHA-256 85c4c934bf9d8e98…

MALICIOUS

PDF

105.8 KB Created: 2020-05-31 03:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4626f3465bf3807c454fb20be87d9c71 SHA-1: 9988fbf130b0e4bf00364a906b8a0bdbe8afe99b SHA-256: 85c4c934bf9d8e984f22695f36e9a63e4f87b2ab82b1993ceeb9623d6cd173f3
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. One such link is http://ddcated-2-marketing-a.pleasingfood.com/uploads/1/3/0/5/130551338/130551338.html#le+petit+prince+french. The document body, though heavily obfuscated, contains references to 'Le petit prince french' and authoring information suggesting it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content. The presence of multiple, seemingly unrelated external links suggests a link farm or redirection scheme, common in phishing or malware distribution campaigns.

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://ddcated-2-marketing-a.pleasingfood.com/uploads/1/3/0/5/130551338/130551338.html#le+petit+prince+french
    • http://sammycottonshowjumper.com/uploads/1/3/1/4/131454367/5634012.pdf
    • http://dennisgrooming.com/uploads/1/3/0/5/130588517/wifiwedo.pdf
    • http://ncnp.ca/uploads/1/3/0/2/130291507/d641f26fe0a5a1.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_off00017565.bin
70b36c37c886659d114dcfdc3378586a363ce02064ada00964bc3dae4fe70f14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17565 12748 bytes

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