Malicious PDF — malware analysis report

Static analysis result for SHA-256 da5e423dc41a9a6f…

MALICIOUS

PDF

18.5 KB Created: 2019-05-02 05:22:01 +01:00 Authoring application: mPDF 5.7
MD5: 0cf996c7e7625ca9fa9fbba01ca250d3 SHA-1: fe4a7f50794aab93ada9c971bdb6e5ebaacd64bd SHA-256: da5e423dc41a9a6f8c0d327c957d7918a5ce3762828201499ee55d6ce5d0414e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to drive traffic to malicious sites. The ML classifier also flagged this document as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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://cefasfese.4pu.com/7733731739736731/The-Count-of-Monte-Cristo-Classics-Book-With-History-of-Author-Annotated-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/6732733731737735/The-Count-Of-Monte-Cristo-Shandon-Classics-The-Books-You-Must-Read-Before-You-Die---6-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5734730739735736/The-Count-Of-Monte-Cristo-Golden-Illustrated-Classics-Comes-with-a-Free-Audiobook-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/6737732737732732/The-Count-of-Monte-Cristo-Volume-I-of-V-The-Count-of-Monte-Cristo-part-1-of-5-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/6730736738731735/Le-comte-de-Monte-Cristo-Tome-IV-The-Count-of-Monte-Cristo-part-4-of-4-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/6737732737733730/Grof-Monte-Kristo-II-The-Count-Of-Monte-Cristo-part-2-of-3-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/4731735738733730/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/9733738731736735/Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5734737734731735/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/8731737733737733/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/4732739735730735/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/1737736731737736/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5735734736738739/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/4733730732738730/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/8738739730738730/The-Count-Of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5732738737732739/The-Count-of-Monte-Cristo-Vol-4-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/3730732730736732/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/8733738731731738/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5734730730739730/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/5732734734732734/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://cefasfese.4pu.com/6730736738731735/Le-comte-de-Monte-Cristo-Tome-IV-The-Count-of-Monte-Cristo-part-4-of-4-by-Alexand

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