Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0750092a8afafee…

MALICIOUS

PDF

28.8 KB Created: 2020-06-13 23:18:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a400ff744a6afe0c93ffd3bef064e958 SHA-1: 231e9c82e90d6df15434b7560381213b174ed765 SHA-256: e0750092a8afafee97e1440f66bfbf5ae84724388c3ef1dd73d979ce9c61ed46
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. The ML classifier also flagged this PDF as malicious. The document body contains text fragments and URLs, suggesting a link farm or SEO manipulation tactic. The primary purpose appears to be directing users to a multitude of external resources, potentially for malicious distribution or traffic generation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://globalnationalfunding.com/uploads/1/3/0/9/130969411/130969411.html#baby+cache+heritage
    • http://boldsocial.ca/uploads/1/3/0/2/130272267/7239340.pdf
    • http://northernoandp.net/uploads/1/3/0/9/130969481/499efeace6a2e60.pdf
    • http://brokerpartners.co/uploads/1/3/0/7/130740149/gitisone_duxiwuzokikaxi.pdf
    • http://mta-sts.mx.myfloresflowers.com/uploads/1/3/1/1/131163516/e0d3ba.pdf
    • http://enelad.co.za/uploads/1/3/0/7/130775276/2161785.pdf
    • http://businessanalyticsone.com/uploads/1/3/0/3/130323727/2037614.pdf
    • http://johnreesleather.com/uploads/1/3/0/6/130621903/2985160.pdf
    • http://warriorshootbanquetfundraiser.com/uploads/1/3/2/3/132302915/7997768.pdf
    • http://hostmaster.scotlandbywebcam.com/uploads/1/3/0/6/130640236/d7da45bd93dc061.pdf
    • http://mail.allaboutoilstore.com/uploads/1/3/0/6/130640059/bopomi.pdf
    • http://sunnyvalespikers.com/uploads/1/3/0/5/130551338/narepiki_foxasojekokabe_fufosokofo.pdf
    • http://macrotopia.com/uploads/1/3/1/3/131398182/5429502.pdf
    • http://newearthconnections.com/uploads/1/3/1/4/131407737/1ff5b36.pdf
    • https://kajulak.files.wordpress.com/2020/06/23055491665.pdf
    • https://nozikop.files.wordpress.com/2020/06/6145994517.pdf
    • https://xusurubisi.files.wordpress.com/2020/06/55043779588.pdf
    • https://petogol.files.wordpress.com/2020/06/41614764067.pdf
    • https://wifuxew.files.wordpress.com/2020/06/77143146618.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_off00004af0.bin
f134d8970aceb40cb1fa1330cbbddd21706e425f85f168a8a516273d34aa94be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF0 8612 bytes

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