Malicious PDF — malware analysis report

Static analysis result for SHA-256 e933b386c5c52e3f…

MALICIOUS

PDF

37.8 KB Created: 2020-06-20 15:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 462a0fc30930adc41e93bb74daff5659 SHA-1: 07cd8be60765477fb5b35a1fe2281d7ff9b24249 SHA-256: e933b386c5c52e3f3052cf9bea21f91f1fb33b3bb056b9aae08e0f2b7c74d465
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, contains a reference to one of these URLs, indicating the document's primary purpose is to redirect users to external content. No scripts were extracted from this sample.

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://cpanel.fityou.es/uploads/1/3/0/5/130551090/130551090.html#tesis+call+center+pdf
    • http://bellytimetravels.com/uploads/1/3/0/6/130639342/806638.pdf
    • http://carmeningles.net/uploads/1/3/1/3/131380777/7f8ee9d9cdda.pdf
    • http://dev.cockburncougars.com.au/uploads/1/3/1/4/131452886/vodibozi_zipisovosa_jivefema.pdf
    • http://webmail.eastcoastguitarexpo.com/uploads/1/3/0/4/130489132/bda26853171.pdf
    • http://admin.luxuryvintagegirlfurs.com/uploads/1/3/0/5/130542907/8543845.pdf
    • http://veronicaspittles.com/uploads/1/3/0/6/130639036/493469da381eab.pdf
    • http://mx.danielreinhart.com/uploads/1/3/0/5/130551623/1758814.pdf
    • http://sabahraphaelreed.com/uploads/1/3/0/4/130436141/buxofer.pdf
    • http://nomoreheroesnovel.com/uploads/1/3/0/5/130589318/segatedutodepubomepi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000596c.bin
d840411c4c68ef9b7fcaff732647166a580c1a1639126285e6274b03922ecca4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x596C 4776 bytes
font_01_sfnt_off000069a2.bin
8d684ccc7a2545f7d9d3f1f32ba4722a0750b533ea18a39afbc5590c86716b38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A2 9888 bytes

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