Malicious PDF — malware analysis report

Static analysis result for SHA-256 3730efa5d66e81e6…

MALICIOUS

PDF

35.4 KB Created: 2020-04-16 05:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: beb339a7bb1cb65ff48b72ba6ed8c7c7 SHA-1: 68aa9a2d56d9d6d1e2a8a2cc48db47f05c5f4dc1 SHA-256: 3730efa5d66e81e626e4329307a9b7396c2871533c8990fb96d639f66f36c313
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, characteristic of a link farm designed to improve search engine rankings. The document body, though heavily obfuscated, contains a URL that appears to be part of this scheme. The primary attack pattern involves luring users to these external sites, likely for malicious purposes such as phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9883

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://lakelotstn.com/uploads/1/3/0/2/130289670/130289670.html#holding+company+business+plan+template
    • http://michaelsosna.com/uploads/1/3/0/5/130538863/2dc391.pdf
    • http://basherlife.com/uploads/1/3/0/7/130739740/wemofekugaliwiwobop.pdf
    • http://tellmeastory2day.com/uploads/1/3/0/9/130969053/venod_kovobivulesep.pdf
    • http://weipal.net/uploads/1/3/0/8/130874045/2fe58f85308.pdf
    • http://foresolar.biz/uploads/1/3/1/3/131379228/923586f.pdf
    • http://encounteringantipolonism.org/uploads/1/3/0/6/130640025/ribojotapikipu.pdf
    • http://theonegoods.com/uploads/1/3/0/6/130604350/vefezodadoxi-tawovowaxewamaz-jagaterekag-fazimoluxuta.pdf
    • http://tbclynchburg.org/uploads/1/3/1/1/131163653/9c436bfd5a96f86.pdf
    • http://cpmyc.club/uploads/1/3/1/4/131437628/e4cbb7278fd.pdf
    • http://il-monsu-chicago.com/uploads/1/3/0/5/130539518/396fa00b50.pdf
    • http://risenlion.com/uploads/1/3/0/5/130590279/3356177.pdf

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