Malicious PDF — malware analysis report

Static analysis result for SHA-256 2526187029eeba07…

MALICIOUS

PDF

15.6 KB Created: 2019-04-28 12:49:00 +01:00 Authoring application: mPDF 5.7
MD5: b1685c14ee1d885ffb5c5a214c498933 SHA-1: 00b0ec96c98fd251f21fd4277bf62018904faf72 SHA-256: 2526187029eeba07db7cdeb32f0985a93875459f2f6545a79034be0b95434a95
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this document as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

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/2a09a09a04a09a09/The-Faery-Truth-Tonawanda-Faery-Tales-2-by-Vicktor-Alexander.pdf
    • http://muicuiu.dumb1.com/2a08a09a07a09a02/Shaman-Pathways---Way-of-the-Faery-Shaman-The-Book-of-Spells-Incantations-Meditations-amp-Faery-Magic-by-Flavia-Kate-Peters.pdf
    • http://muicuiu.dumb1.com/9a03a04a00a04/Logan-s-Run-Logan-1-by-William-F-Nolan.pdf
    • http://muicuiu.dumb1.com/3a04a08a09a08a05/The-Unexpected-Crush-Complete-Series-The-Unexpected-Crush-1-3-by-Alexa-Wilder.pdf
    • http://muicuiu.dumb1.com/1a08a00a01a03a05/Losing-Logan-Losing-Logan-1-by-Sherry-D-Ficklin.pdf
    • http://muicuiu.dumb1.com/2a09a09a05a09a03/The-Faery-Prince-by-Vali.pdf
    • http://muicuiu.dumb1.com/6a08a01a08a09a08/The-Faery-Reel-by-Arielle-Pierce.pdf
    • http://muicuiu.dumb1.com/2a03a09a08a04a00/Faery-Tail-by-Deborah-McNemar.pdf
    • http://muicuiu.dumb1.com/8a08a07a08a02a02/From-Peterborough-to-Faery-by-Thomas-Honegger.pdf
    • http://muicuiu.dumb1.com/2a00a06a02a03a09/Beauty-A-Faery-Story-3-by-Sophie-Oak.pdf
    • http://muicuiu.dumb1.com/4a08a02a07a03a03/Faery-Magic-by-Mary-Jo-Putney.pdf
    • http://muicuiu.dumb1.com/1a07a04a05a08a05/Bound-A-Faery-Story-1-by-Sophie-Oak.pdf
    • http://muicuiu.dumb1.com/1a02a06a06a00a07/Once-Upon-an-Autumn-Eve-Faery-3-by-Dennis-L-McKiernan.pdf
    • http://muicuiu.dumb1.com/4a01a00a00a09a02/The-Faery-Convention-by-Brett-Davis.pdf
    • http://muicuiu.dumb1.com/1a02a08a02a09a08/Once-Upon-a-Spring-Morn-Faery-4-by-Dennis-L-McKiernan.pdf
    • http://muicuiu.dumb1.com/7a08a06a01a01/Faery-Tales-amp-Nightmares-by-Melissa-Marr.pdf
    • http://muicuiu.dumb1.com/4a00a07a07a00a07/Faery-Tales-amp-Nightmares-by-Melissa-Marr.pdf
    • http://muicuiu.dumb1.com/2a09a09a05a00a08/Faery-Me-Phanta-City-3-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a01a01a03a07a04/Faery-Queen-Realm-Immortal-2-by-Michelle-M-Pillow.pdf
    • http://muicuiu.dumb1.com/3a08a09a09a03a08/Faery-Lands-Forlorn-A-Man-of-His-Word-2-by-Dave-Duncan.pdf
    • http://muicuiu.dumb1.com/2a00a06a02a03a09/Beauty-

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