Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0619d79cdb07c3…

MALICIOUS

PDF

19.2 KB Created: 2019-04-30 05:30:47 +01:00 Authoring application: mPDF 5.7
MD5: d345ef5496a1c966705e2d62a045c00b SHA-1: 314e4720718aca270e75b6d3f11c832f5c541250 SHA-256: 5e0619d79cdb07c3bbc58e0f7f53a8c70433b7efc59e43a6ba10817e982abb4e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, which is a common technique for distributing malware or redirecting users to malicious websites. The ML classifier also flagged this PDF as malicious. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to trick the user into navigating to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9826

Heuristics 2

  • 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.
  • 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://muicuiu.dumb1.com/4a00a01a05a03a09/Rudyard-Kipling-The-Jungle-Book-The-Second-Jungle-Book-Just-So-Stories-Puck-of-Pook-s-Hill-Stalky-amp-Co-Kim-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/4a00a07a04a01/Rudyard-Kipling-s-The-Jungle-Book-The-Mowgli-Stories-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a09a02a03/The-Jungle-Book-Rudyard-Kipling-illustrated-by-Lute-Vink-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/9a04a05a04a00/Puck-of-Pook-s-Hill-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a00a04a07a06a02/Puck-of-Pook-s-Hill-and-Rewards-and-Fairies-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a01a02a05a00a08a08/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/9a08a04a02a04a01/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a00a08a09a04a02a09/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/4a08a03a02a04/The-Second-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/7a06a09a03a03a02/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/3a02a06a03a08a09/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/8a08a02a09a09/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/7a07a03a09a09a00/The-Jungle-Book---Le-Livre-De-La-Jungle-A-Bilingual-Reader---Une-Livre-Bilingue-Classical-Language-Skills-Development-Series-8-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a01a02a05a02a08a07/The-Jungle-Book-Macmillan-Collector-s-Library-33-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/5a04a01a08a02a07/The-Jungle-Book-Macmillan-English-Explorers-Explorers-4-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/4a07a00a08a02a05/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a00a08a09a04a03a04/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a01a04a01a07a08a03/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/5a03a08a08a06a08/Le-Livre-de-la-jungle-Nouvelle-dition-illustr-e-avec-89-dessins-originaux-de-Maurice-de-Becque-et-d-autres-by-Rudyard-Kipling.pdf
    • http://muicuiu.dumb1.com/1a00a09a08a01a03a09/Kim-By-Rudyard-Kipling---Rank-76-Of-100-100-Formatted-Wordwise-Enabled-Active-TOC-Active-Footnotes-Illustrated--JKL-Classics-by-Rudyard-Kipling.pdf

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