Malicious PDF — malware analysis report

Static analysis result for SHA-256 941ae529c2e125fd…

MALICIOUS

PDF

39.3 KB Created: 2020-04-19 16:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7a624e4b487fe43a9aca57281f28a255 SHA-1: 9f4133a1ca079912dca8cd65d999d750e954d3b6 SHA-256: 941ae529c2e125fd8dd5f8fedbf649e81684c36e828a811f93c06c54e6bc055a
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, many of which are numerically or generically named PDFs hosted on various domains. This pattern is indicative of a link farm or SEO spam campaign. The document body, though heavily obfuscated, contains a reference to 'La esencia del budismo tibetano pdf' and a URL pointing to a similar resource, suggesting a lure to attract users interested in specific topics. No scripts were extracted, limiting the analysis to the document structure and embedded URLs.

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://dylanwyke.com/uploads/1/3/0/3/130324167/130324167.html#la+esencia+del+budismo+tibetano+pdf
    • http://msluxecosmetics.com/uploads/1/3/0/6/130620885/vugelumopifaxoz-wibone-soberugik-tadipokifijip.pdf
    • http://richardkingham.com/uploads/1/3/1/3/131380767/rokeluwukogex_pawipanatupune_kiximadufeseke_werusuba.pdf
    • http://g1entrancesolutions.com/uploads/1/3/1/4/131437780/fb4f38c.pdf
    • http://cottoncache.net/uploads/1/3/0/7/130776250/539607.pdf
    • http://mywellnessprescription.com/uploads/1/3/0/6/130639313/fawefetomiramu.pdf
    • http://roadadventures.net/uploads/1/3/1/4/131407110/zudavunumijugesutag.pdf
    • http://aorta-health.net/uploads/1/3/0/7/130738777/c5144f82b.pdf
    • http://livinginalegalworld.com/uploads/1/3/0/3/130313410/4777c2c.pdf
    • http://clearhrsolutionsd.com/uploads/1/3/1/1/131163507/wesexojor.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_off00007066.bin
d8fcb093c963ba69bb2f184af35c60eb0d8b459c71b1154c1b34df73b3b4005d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7066 8608 bytes

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