Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e464365e0298ea…

MALICIOUS

PDF

14.2 KB Created: 2019-05-07 03:27:26 +01:00 Authoring application: mPDF 5.7
MD5: 00061a63917a6b1f39e301e02d68da1b SHA-1: 5e37704f91d14ea340dc8be6b6d4a4d31a9e689d SHA-256: 55e464365e0298eaa429d5619a9331063547bc4bcea70486d44dfe408d63b1e4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external websites, identified as a link farm. The ML classifier also flagged this PDF as malicious. While the specific intent beyond link farming is unclear due to the lack of script content and the benign reputation of the initial URLs, the sheer volume of links suggests a malicious distribution or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9200

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/5a00a06a00a05a03/A-Twist-of-Hate-by-V-R-Barkowski.pdf
    • http://muicuiu.dumb1.com/1a00a00a05a08a03a06/I-Hate-You-More-Than-Anyone-Vol-3-I-Hate-You-More-Than-Anyone-3-by-Banri-Hidaka.pdf
    • http://muicuiu.dumb1.com/1a07a00a06a01a06/From-Hate-From-Hate-1-by-Lily-Simon.pdf
    • http://muicuiu.dumb1.com/1a00a00a05a08a03a04/I-Hate-You-More-Than-Anyone-Vol-4-I-Hate-You-More-Than-Anyone-4-by-Banri-Hidaka.pdf
    • http://muicuiu.dumb1.com/2a08a02a05a04a06/Love-to-Hate-You-Love-Hate-2-by-Isabelle-Richards.pdf
    • http://muicuiu.dumb1.com/3a01a06a03a05a07/The-Twist-by-Lee-Silver.pdf
    • http://muicuiu.dumb1.com/5a00a09a00a00a02/Twist-by-Pippa-Little.pdf
    • http://muicuiu.dumb1.com/3a05a01a08a05a00/Twist-of-Fate-by-Syd-Parker.pdf
    • http://muicuiu.dumb1.com/1a01a09a06a09a04a09/Addicted-With-a-Twist-by-Zane.pdf
    • http://muicuiu.dumb1.com/3a02a02a06a07a08/Sci-Fi-with-a-Twist-by-Jack-Legend.pdf
    • http://muicuiu.dumb1.com/2a00a03a07a04a04/Once-Upon-A-Twist-by-Aimee-Duffy.pdf
    • http://muicuiu.dumb1.com/2a03a02a01a04a00/Twist-by-Joss-Whedon.pdf
    • http://muicuiu.dumb1.com/4a08a04a07a03a08/Triggerfish-Twist-by-Tim-Dorsey.pdf
    • http://muicuiu.dumb1.com/2a03a09a08a07a05/A-Twist-of-Fae-Surfaeillance-1-by-Rebekah-Shafer.pdf
    • http://muicuiu.dumb1.com/4a09a09a07a08a03/Oliver-Twist-by-Charles-Dickens.pdf
    • http://muicuiu.dumb1.com/1a00a03a04a09a08a02/A-Twist-of-Lemming-by-Gary-Sherwood.pdf
    • http://muicuiu.dumb1.com/6a00a06a07a05a06/Oliver-Twist-by-Charles-Dickens.pdf
    • http://muicuiu.dumb1.com/7a01a06a07a08a05/Oliver-Twist-by-Charles-Dickens.pdf
    • http://muicuiu.dumb1.com/2a08a05a00a01a02/Oliver-Twist-by-Charles-Dickens.pdf
    • http://muicuiu.dumb1.com/6a02a05a07a09a00/Olivier-Twist-by-Charles-Dickens.pdf
    • http://muicuiu.dumb1.com/3a0

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