Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e88d5ea6994c31c…

MALICIOUS

PDF

15.7 KB Created: 2019-04-30 04:05:39 +01:00 Authoring application: mPDF 5.7
MD5: d1a5818c3605bdda2ce673ed797aad6d SHA-1: 238c49ba7ae1847876342a416b14f071d290e08f SHA-256: 3e88d5ea6994c31cd9331a034b807c7842ddddd8109349c4d17b3681d68cf1a9
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on the suspicious domain 'muicuiu.dumb1.com'. This heuristic firing, combined with the ML classifier's high confidence score, suggests a link-farming or redirection tactic. The document body, though heavily obfuscated, contains URLs that are consistent with the link farm heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/7a09a01a05a09a02/The-Deception-by-Ananda-Liyanage.pdf
    • http://muicuiu.dumb1.com/7a09a01a04a05a04/The-Legacy-by-Ananda-Liyanage.pdf
    • http://muicuiu.dumb1.com/7a09a01a06a00a04/The-Spiritual-Philosophy-Of-Shrii-Shrii-Anandamurti-A-Commentary-On-Ananda-Sutram-by-Avadhutika-Ananda-Mitra-Acarya.pdf
    • http://muicuiu.dumb1.com/7a09a01a03a02a04/Essential-Ananda-K-Coomaraswamy-by-Ananda-K-Coomaraswamy.pdf
    • http://muicuiu.dumb1.com/1a08a02a01a05a02/Prophecy-Accepted-Prime-Prophecy-2-by-Tamar-Sloan.pdf
    • http://muicuiu.dumb1.com/3a01a00a09a07a04/Prophecy-s-Language-Prophecy-4-by-Brenda-Dyer.pdf
    • http://muicuiu.dumb1.com/1a03a01a09a05a04/Prophecy-s-Child-Prophecy-2-by-Brenda-Dyer.pdf
    • http://muicuiu.dumb1.com/4a02a01a06a02/Love-s-Prophecy-Prophecy-1-by-Brenda-Dyer.pdf
    • http://muicuiu.dumb1.com/5a04a02a09a08/Prophecy-s-Child-Prophecy-2-by-Brenda-Dyer.pdf
    • http://muicuiu.dumb1.com/9a05a00a03a09/Prophecy-Clash-of-Kings-Prophecy-1-by-M-K-Hume.pdf
    • http://muicuiu.dumb1.com/2a04a09a03a00a07/Prophecy-of-the-Flame---Book-Two-Prophecy-of-the-Flame-2-by-Lynn-Hardy.pdf
    • http://muicuiu.dumb1.com/3a08a09a03a09a03/Immortal-Prophecy-The-Immortal-Prophecy-Saga-1-by-Samantha-Adams.pdf
    • http://muicuiu.dumb1.com/7a09a01a04a01a04/The-Transformation-of-Nature-into-Art-by-Ananda-K-Coomaraswamy.pdf
    • http://muicuiu.dumb1.com/1a01a03a00a03a05/Merrow-by-Ananda-Braxton-Smith.pdf
    • http://muicuiu.dumb1.com/3a06a07a03a05a00/Buddha-and-the-Gospel-of-Buddhism-by-Ananda-K-Coomaraswamy.pdf
    • http://muicuiu.dumb1.com/1a06a02a04a02a06/Prophecy-Prophecy-1-by-Lea-Kirk.pdf
    • http://muicuiu.dumb1.com/7a09a01a06a00a01/Ghostheart-Secrets-of-Carrick-3-by-Ananda-Braxton-Smith.pdf
    • http://muicuiu.dumb1.com/7a09a01a06a00a02/Ananda-Math-Amar-Chitra-Katha-86-amp-655-by-Anant-Pai.pdf
    • http://muicuiu.dumb1.com/1a00a09a06a06a05a04/The-Diary-of-Ananda-Ranga-Pillai-Volume-8-by-Henry-Dodwell.pdf
    • http://muicuiu.dumb1.com/4a00a05a09a07a05/Prophecy-of-the-Sisters-Prophecy-of-the-Sisters-1-by-Michelle-Zink.pdf
    • http://muicuiu.dumb1.com/2a04a09a03a00a

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