Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6208f61de07cd5…

MALICIOUS

PDF

43.7 KB Created: 2020-04-10 11:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 774ada1d11a1f7a0a37d0d65d95916c9 SHA-1: ff8bfaa33f2a6839100e5039513e0ea0d10d8e12 SHA-256: af6208f61de07cd501846563737ccb9d1c8d4b87c610248fac39df038945bd78
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, indicating a link farm or SEO manipulation tactic. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous generated URLs. The document body, though partially obfuscated, contains references to these URLs, suggesting the primary purpose is to redirect users to these external sites. No scripts were extracted, and the document content itself does not appear to contain a direct lure.

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://outdoorsmetalguy.com/uploads/1/3/0/5/130543840/130543840.html#10+ejemplos+de+alcanos+desarrollados
    • http://marlarenterprises.com/uploads/1/3/0/2/130289755/bifufoloku-dilakebupe-lulemomolaf-poxuvaxesuzav.pdf
    • http://nathandmaki.com/uploads/1/3/1/4/131437770/ludurosuwus-rijodilo-vawavamemos.pdf
    • http://deejung.net/uploads/1/3/1/3/131398412/9cb0bbe7b71070.pdf
    • http://prairie-to-plate.com/uploads/1/3/0/5/130588443/b447fe.pdf
    • http://itstimetogame.com/uploads/1/3/1/4/131408024/5e1c638ba.pdf
    • http://ricpainter.com/uploads/1/3/0/6/130620176/lobas-defufizibowe.pdf
    • http://emarpulawy.pl/uploads/1/3/0/8/130813357/xijirolerififo.pdf
    • http://carminarevert.xyz/uploads/1/3/0/4/130436298/5094452.pdf
    • http://thebreaches.com/uploads/1/3/1/3/131384789/a5df9e04f43.pdf
    • http://harristonhomescare-residential.com/uploads/1/3/0/4/130476814/7854296.pdf
    • http://luxuryinteriorphotography.eu/uploads/1/3/0/6/130620501/606263.pdf
    • http://vickylantzphoto.com/uploads/1/3/0/6/130639504/7794450.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_off0000770b.bin
227e33badf2136b315a2a68924fe9a969c8e05cf83707355cc1c850a724eb5f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x770B 8628 bytes
font_01_sfnt_off0000966b.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x966B 2652 bytes

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