Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8f4bf7e5d249758…

MALICIOUS

PDF

13.2 KB Created: 2019-05-06 16:58:08 +01:00 Authoring application: mPDF 5.7
MD5: 3b38d551b670bc3104e9634dab2f485d SHA-1: 9514d96aa5ff608e8967a8fd3d951ddea81407f7 SHA-256: c8f4bf7e5d249758a0829ccc67ef93b4dfe1e2913ae255d708bab88a224b5b6e
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links pointing to external PDF files hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/1a01a08a00a00a00a01/Crashed-by-Danielle-A-Elwood.pdf
    • http://muicuiu.dumb1.com/1a07a04a03a00a09/Crashed-by-Danielle-A-Elwood.pdf
    • http://muicuiu.dumb1.com/3a05a02a06a08a05/Take-Me-Out-by-Danielle-A-Elwood.pdf
    • http://muicuiu.dumb1.com/3a01a04a00a00/Crashed-by-K-Bromberg.pdf
    • http://muicuiu.dumb1.com/1a01a08a00a01a00a06/Crashed-by-Kate-Rudolph.pdf
    • http://muicuiu.dumb1.com/8a00a02a09a09a01/Crashed-Junior-Bender-1-by-Timothy-Hallinan.pdf
    • http://muicuiu.dumb1.com/1a01a04a06a08a05/Crashed-Cold-Awakening-2-by-Robin-Wasserman.pdf
    • http://muicuiu.dumb1.com/3a01a08a07a07a01/Horror-Hunters-by-Roger-Elwood.pdf
    • http://muicuiu.dumb1.com/2a06a08a09a01a03/Crashed-Axle-Alley-Vipers-1-by-Sherilee-Gray.pdf
    • http://muicuiu.dumb1.com/8a00a01a01a04/Caroline-Severance-by-Virginia-Elwood-Akers.pdf
    • http://muicuiu.dumb1.com/4a02a03a02a02a02/Zvi-The-Miraculous-Story-of-Triumph-Over-the-Holocaust-by-Elwood-McQuaid.pdf
    • http://muicuiu.dumb1.com/8a04a09a06a09/Darien-Guardian-Angel-of-Jesus-by-Roger-Elwood.pdf
    • http://muicuiu.dumb1.com/4a05a05a08a09a02/Androids-Time-Machines-amp-Blue-Giraffes-A-Panorama-of-Science-Fiction-by-Roger-Elwood.pdf
    • http://muicuiu.dumb1.com/4a00a09a01a03a08/H-R-H-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a07a09a06a07a06/The-One-by-Danielle-Allen.pdf
    • http://muicuiu.dumb1.com/7a09a01a08a08a06/I-Like-Me-by-Danielle-Gallman.pdf
    • http://muicuiu.dumb1.com/4a01a06a03a04a07/Against-All-Odds-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/3a04a01a06a08a00/The-Promise-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/1a00a08a05a08a04a03/People-Like-Me-by-Danielle-Tauscher.pdf
    • http://muicuiu.dumb1.com/4a08a06a05a06a09/Over-the-Ocean-by-Danielle-Rohr.pdf

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