Malicious PDF — malware analysis report

Static analysis result for SHA-256 a584b054eeaa101e…

MALICIOUS

PDF

19.5 KB Created: 2019-04-25 00:48:19 +01:00 Authoring application: mPDF 5.7
MD5: b31b2d90c700df69c0f9ed1f7fef8bda SHA-1: 7124d295efa92692b7f11709c45cf7779299ec9b SHA-256: a584b054eeaa101e610476c68f3607734aabd784a94cc61442b96bff5bbf537f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a phishing lure designed to direct users to potentially malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/3a07a07a03a06a04/The-Dark-by-David-C-Cassidy.pdf
    • http://muicuiu.dumb1.com/6a08a07a02a04a02/Night-Work-Michael-Cassidy-2-by-David-C-Taylor.pdf
    • http://muicuiu.dumb1.com/2a09a00a06a03a09/Cassidy-Jones-and-Vulcan-s-Gift-Cassidy-Jones-Adventures-2-by-Elise-Stokes.pdf
    • http://muicuiu.dumb1.com/5a00a05a09a03/Cassidy-Jones-and-the-Secret-Formula-Cassidy-Jones-Adventures-1-by-Elise-Stokes.pdf
    • http://muicuiu.dumb1.com/2a09a00a06a03a08/Cassidy-Jones-and-the-Secret-Formula-Cassidy-Jones-Adventures-1-by-Elise-Stokes.pdf
    • http://muicuiu.dumb1.com/6a08a07a02a04a07/Off-The-Beaten-Path---A-Steve-Cassidy-Mystery-Steve-Cassidy-3-by-John-Schlarbaum.pdf
    • http://muicuiu.dumb1.com/3a03a02a09a00a01/Cassidy-Jones-and-the-Luminous-Cassidy-Jones-Adventures-4-by-Elise-Stokes.pdf
    • http://muicuiu.dumb1.com/6a00a08a04a00a03/The-Cathy-Cassidy-Dreams-and-Doodles-Daybook-by-Cathy-Cassidy.pdf
    • http://muicuiu.dumb1.com/9a07a07a00a03/Out-in-the-Dark-Poetry-of-the-First-World-War-in-Context-and-with-Basic-Notes-David-Roberts-by-David---Roberts.pdf
    • http://muicuiu.dumb1.com/1a06a02a08a09a00/Western-genre-Novels-including-The-Dark-Tower-Ii-The-Drawing-Of-The-Three-The-Dark-Tower-The-Gunslinger-The-Dark-Tower-Iv-Wizard-And-Glass-The-Dark-Tower-Iii-The-Waste-Lands-The-Dark-Tower-V-Wolves-Of-The-Calla-The-Wind-Through-The-Keyhole-by-Hephaestus-Books.pdf
    • http://muicuiu.dumb1.com/3a07a05a02a05a06/Dark-Moon-by-David-Gemmell.pdf
    • http://muicuiu.dumb1.com/4a00a02a05a02/Dark-Angel-by-David-Klass.pdf
    • http://muicuiu.dumb1.com/4a04a09a02a03a09/Dark-Surprise-by-David-Coutee.pdf
    • http://muicuiu.dumb1.com/2a05a04a03a05a03/Dark-Grid-by-David-C-Waldron.pdf
    • http://muicuiu.dumb1.com/4a01a00a04a04a07/Dark-Passage-by-David-Goodis.pdf
    • http://muicuiu.dumb1.com/5a08a02a06a03a09/Elvira-Mistress-Of-The-Dark-2-by-David-Avallone.pdf
    • http://muicuiu.dumb1.com/1a00a06a05a02a03/First-Flight-The-Dark-Eagles-1-by-David-R-Smith.pdf
    • http://muicuiu.dumb1.com/7a05a02a02a02a06/Reunion-amp-Dark-Pony-by-David-Mamet.pdf
    • http://muicuiu.dumb1.com/5a09a06a02a09/The-Immortals-After-Dark-Collection-Dreams-Of-A-Dark-Warrior-Demon-From-The-Dark-A-Hunger-Like-No-Other-Immortals-After-Dark-2-10-11-by-Kresley-Cole.pdf
    • http://muicuiu.dumb1.com/9a04a08a00a07/Dark-Solus-An-Assassin-s-Tale-by-David-Andrew-Crawford.pdf
    • http://muicuiu.dumb1.com/9a07a07a00a03/Out-in-the-Dark-Poetry-of-the-First-World-War-in-Context-and-with-Basic-No

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