Malicious PDF — malware analysis report

Static analysis result for SHA-256 712285218e0989d1…

MALICIOUS

PDF

23.9 KB Created: 2020-04-21 01:20:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bd2203b93d9666059330f26cae677192 SHA-1: 4c2c37809b737813bf1c857beda0866ad18c90cd SHA-256: 712285218e0989d169601b1727eef997649d94ba4e2c175f01c20542edc69bcf
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to 'Redmi android 10 update list' and embeds numerous external links, many of which point to PDF files. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a link farm or redirection scheme. The ML classifier also flagged this PDF as malicious with high confidence. The embedded links likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9528

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://viajespremiumlatinamerica.com/uploads/1/3/0/2/130272462/130272462.html#redmi+android+10+update+list
    • http://theblindfoldedmusician.com/uploads/1/3/1/3/131380453/a2c16b772de.pdf
    • http://eastoffiveboutique.com/uploads/1/3/1/4/131453950/geralinapijez.pdf
    • http://peacesparts.com/uploads/1/3/0/6/130639411/tovanepalux.pdf
    • http://ashleyisgivingart.com/uploads/1/3/0/8/130874338/c1baf.pdf
    • http://favoritzrestaurantandlounge.com/uploads/1/3/0/5/130544591/nomijefusonaxu.pdf
    • http://onebelief.us/uploads/1/3/0/4/130483902/3519366.pdf
    • http://epicautographs.com/uploads/1/3/1/4/131408298/2132571.pdf
    • http://labirroteca.info/uploads/1/3/0/2/130274322/salanixugadogok_tuxudufeb_tuneximufep_xupabewo.pdf

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