Malicious PDF — malware analysis report

Static analysis result for SHA-256 c78423d76bf1f6e0…

MALICIOUS

PDF

43.9 KB Created: 2020-03-09 04:52:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6f17ec1ea3da60d3a30854a1e5f853d7 SHA-1: 308468d5166133634b4140bcee19aa5471421dea SHA-256: c78423d76bf1f6e05901438a30a688c9b2ada8216eddc1317028c8d6438e212e
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, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to domains like teamketo.ca and naturaltolife.com. No scripts were extracted from this sample, and the document body is heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link distribution.

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://naturaltolife.com/uploads/1/3/0/3/130323341/130323341.html#cubital+tunnel+syndrome+rehab+protocol
    • http://teamketo.ca/uploads/1/3/0/6/130604972/7538472.pdf
    • http://jefflinder.net/uploads/1/3/0/7/130740060/8579614.pdf
    • http://thehotelgroupllc.com/uploads/1/3/0/2/130270812/sogenilovufuma.pdf
    • http://murphcooper.com/uploads/1/3/0/4/130436140/a6ac2.pdf
    • http://321markets.com/uploads/1/3/0/2/130289344/murukenilorugopotub.pdf
    • http://myearthbistro.com/uploads/1/3/0/3/130379182/2740090.pdf
    • http://lllpgheast.org/uploads/1/3/0/7/130738846/6ed7d67109f4c.pdf
    • http://cameliascandles.com/uploads/1/3/0/2/130287817/zebazudu.pdf
    • http://capitolcorporatepark.com/uploads/1/3/0/7/130775835/gozazadetox.pdf
    • http://laughingduck.org/uploads/1/3/0/5/130539251/7454276e0.pdf
    • http://theeverydaytraveller.com/uploads/1/3/0/2/130289359/tolejisi-xorewafuk-togog-xuxalog.pdf
    • http://michaelsheacounselling.com/uploads/1/3/0/6/130621588/gasakofubon.pdf
    • http://bigdataavionics.com/uploads/1/3/0/8/130813111/lejew.pdf
    • http://tutoris-hk.com/uploads/1/3/0/6/130620948/2533429.pdf
    • http://forestvillle.com/uploads/1/3/0/5/130588999/wojax_rikalukojiga_zamezo_xafetat.pdf
    • http://sandiegomountainbiking.com/uploads/1/3/0/9/130969754/rafomijel_tonono.pdf
    • http://lifewithtea.com/uploads/1/3/0/4/130476135/muduturemipupojon.pdf
    • http://thecreameryshop.com/uploads/1/3/0/5/130539728/kapibenofizu.pdf
    • http://www.eajclub.com/uploads/1/3/0/5/130550830/bujavamujegob.pdf
    • http://jokebits.net/uploads/1/3/0/7/130776074/0c4e0d4f1.pdf
    • http://www.mindsetmakeover.site/uploads/1/3/0/7/130775551/4764989.pdf
    • http://tricityrealestateblog.net/uploads/1/3/0/7/130776223/719c556fdcc84.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_off00008408.bin
ce90f5b830eac0c7bad7c29f08e6089fc7300bd7a4ad11a49fb1e0687c6adea6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8408 7580 bytes

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