Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f7b5ef239263d25…

MALICIOUS

PDF

107.6 KB Created: 2020-03-24 07:05:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 981b0bd268833e63d70e6abfb1b77923 SHA-1: 3abf44aabd1e0d6569921f88871943715a5030c2 SHA-256: 9f7b5ef239263d25af3665c2c471d9faa289718978e6a225681e1fc5082d72a6
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are numerically or generically named, suggesting an SEO spam or link farm tactic. The primary embedded URI points to 'neokundalini.org' with a title related to art, likely a lure to direct users to malicious content. No scripts were extracted, but the PDF structure and extensive link farm indicate a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://neokundalini.org/uploads/1/3/0/3/130313404/130313404.html#composicion+aurea+en+el+arte
    • http://www.kalpipeband.org/uploads/1/3/0/3/130323199/xatozowaka-gomakivo-vugov.pdf
    • http://rnrinc.org/uploads/1/3/0/7/130775732/sedal.pdf
    • http://samuelmarshall.net/uploads/1/3/1/1/131163538/83352b92ad64.pdf
    • http://samguild.com/uploads/1/3/0/7/130775033/fofig.pdf
    • http://royaledirect.com/uploads/1/3/0/6/130604434/mupatoruzi-jekos-pupef-wamare.pdf
    • http://otxms.com/uploads/1/3/0/2/130288456/714c4d97d814.pdf
    • http://www.laperlaproducts.com/uploads/1/3/0/7/130739478/jemiwob.pdf
    • http://smplanka.org/uploads/1/3/0/7/130776148/53c505cb6d4de.pdf
    • http://mx.companionsofchrist.org/uploads/1/3/0/4/130483299/madagufudido.pdf
    • http://mx.newlifenaturalhealth.com/uploads/1/3/0/6/130640049/6584608.pdf
    • http://peterboroughlawsociety.org/uploads/1/3/0/8/130813403/zupoj-dasiweza-nuwawox-ribozugaxeduxab.pdf
    • http://simplywantitmore.com/uploads/1/3/0/5/130590163/tijedomimon.pdf
    • http://mta-sts.mail.kunstrad-klick.ch/uploads/1/3/0/7/130739190/085dc862d30ea.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_off00016f95.bin
9d28ea3f7855b4432c6ec576497efe055bfd63f75dcb397795796cc1011a3dd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16F95 10744 bytes
font_01_sfnt_off0001947a.bin
d405a012261030a1236a9dd27c20084fbba18530befca20423e97dac771e5411		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1947A 2788 bytes

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