Malicious PDF — malware analysis report

Static analysis result for SHA-256 7962fe5234074772…

MALICIOUS

PDF

36.6 KB Created: 2020-03-24 15:23:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 43e27d83b00882886320acc7c0af012e SHA-1: bc40db4d6190b72824f63dd32010cc1a02e1efaf SHA-256: 7962fe5234074772801e9835fb5e40fdf0856186c5b1cf5276ff53ced6f8fefb
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links pointing to various domains, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links. The document body itself is heavily obfuscated and contains some of the URLs, suggesting the primary purpose is to redirect the user to these external resources.

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://outon4th.com/uploads/1/3/0/9/130968988/130968988.html#joules+to+l+atm
    • http://www.mongoliapdac.ca/uploads/1/3/0/8/130874160/d86152f0c582d15.pdf
    • http://culturaenruta.com/uploads/1/3/0/2/130270869/rezoxokomatuxowuzuw.pdf
    • http://tojireg.store/uploads/1/3/0/6/130605048/julisepajibu_kudasur_lefinabujuwit.pdf
    • http://quickliftsrightnow.com/uploads/1/3/0/4/130489102/bed09810898.pdf
    • http://3mbluemerlecorgis.com/uploads/1/3/0/8/130874370/3041927.pdf
    • http://christinecaseyphotography.com/uploads/1/3/0/3/130313082/kunip.pdf
    • http://spxqs.com/uploads/1/3/0/5/130588349/vugokoruvel.pdf
    • http://brainhealthmovement.org/uploads/1/3/0/6/130639426/eddba4b59d78ec.pdf
    • http://giftgone.com/uploads/1/3/0/6/130640053/6485465.pdf
    • http://fpucdn.com/uploads/1/3/0/4/130488547/turabogan.pdf
    • http://www.mobilemechanicsouthend.com/uploads/1/3/0/6/130640107/wigoni.pdf
    • http://healthypleasuremx.com/uploads/1/3/0/3/130379074/todigugof-dapezenukozi-zosukagidanud.pdf
    • http://mspokrantsband.ca/uploads/1/3/0/5/130551390/nenisuvikubatar.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_off00006429.bin
b091ae3c40ef887c6a1167661b8cc82681a8669e0f6e6d3ca143e376cc7cb770		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6429 8948 bytes

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