Malicious PDF — malware analysis report

Static analysis result for SHA-256 c328d0085a4633cd…

MALICIOUS

PDF

41.5 KB Created: 2020-04-06 11:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0236bf2e2303f3e4f64a63b750aaf072 SHA-1: 2337a26ee10da2d066d9d7135733fda8efe4cee5 SHA-256: c328d0085a4633cdee1499892c8a0a206c0642fb4e26fa32f7a91106913e43f2
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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. The document body contains text related to 'Crisp-dm methodology ppt' and the authoring application, but the primary malicious activity appears to be the distribution of numerous external links.

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://myanniebaker.com/uploads/1/3/0/4/130436306/130436306.html#crisp-dm+methodology+ppt
    • http://tallconfidentguy.com/uploads/1/3/0/4/130477979/4973636.pdf
    • http://thehydeparktales.com/uploads/1/3/0/4/130436343/xagubalelorizuw-jefuzabeso-tirofegikolelek-widot.pdf
    • http://runawaytide.com/uploads/1/3/0/5/130538838/7faae1704307.pdf
    • http://casabonitaconstruction.com/uploads/1/3/0/7/130776215/rilotozusi.pdf
    • http://justinlandry.net/uploads/1/3/0/5/130545249/donizubozuvomosu.pdf
    • http://wooneventoostnederland.nl/uploads/1/3/0/2/130291441/dirafepisunal-retefobavipogor-zufolevarokawa.pdf
    • http://robinsnestfunraiser.org/uploads/1/3/0/3/130313035/maravotap.pdf
    • http://abohanan1982.com/uploads/1/3/0/8/130814397/lasor_fujoj_xufujogetokakir_vamuguzoxamak.pdf
    • http://www.bar-du-soleil.be/uploads/1/3/1/3/131384383/1842542.pdf
    • http://seasonsoftouch.com/uploads/1/3/1/3/131398258/zibifutun_sigig_ragidumene.pdf
    • http://haddaralandscaping.com/uploads/1/3/0/6/130605292/c988a574f.pdf
    • http://mybaysidemusic.com/uploads/1/3/0/8/130813134/zibolokogilub_zevilabo_dilaxoxin.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_off00007908.bin
e36f9c840b86fa81135af6a3b1e17186269f804c65a470b03dbdbd49c631b499		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7908 8448 bytes

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