Malicious PDF — malware analysis report

Static analysis result for SHA-256 d457d957f4728eeb…

MALICIOUS

PDF

20.4 KB Created: 2019-05-01 05:14:29 +01:00 Authoring application: mPDF 5.7
MD5: a68a32a0fa1a64cf7ace29df43cf77c9 SHA-1: 0bb2b70a136d3190f81ee6dfd175fc10fd959314 SHA-256: d457d957f4728eeb5347d649af961aa21bb382317967961925f2cce4d7fba097
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 pointing to external PDF files hosted on the domain 'muicuiu.dumb1.com'. This is indicative of a link farm, likely used for SEO poisoning or to distribute potentially unwanted content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/1a01a02a01a01a01a01/Self-Esteem-The-Ultimate-Box-Set-Self-Confidence-How-To-Overcome-Shyness-Worry-And-Boost-Your-Self-Esteem-amp-Codependency-How-To-Be-Codependent-No-How-To-Overcome-Insecurity-And-Shyness-by-Anastasia-Verg.pdf
    • http://muicuiu.dumb1.com/1a01a02a01a01a00a03/Self-Confidence-How-To-Overcome-Shyness-Worry-And-Boost-Your-Self-Esteem-by-Anastasia-Verg.pdf
    • http://muicuiu.dumb1.com/4a06a07a03a01a07/Self-Confidence---52-Proven-Ways-To-Gain-Self-Confidence-Boost-Your-Self-Esteem-and-End-Self-Doubt-by-Andy-C-E-Brown.pdf
    • http://muicuiu.dumb1.com/3a02a00a08a05a07/The-Releasing-You-From-Insomnia-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a03a04a09a08a00/Viv-and-the-Geordie-Mafia-Vol-2-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a08a06/7-Day-Focusing-Plan-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/1a06a02a03a03a02/The-Ultimate-Success-In-Love-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a01a08a08a01a02/The-Ultimate-Focus-Builder-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a03a03a06/Inspire-Me-Unlock-Your-Inner-Happiness-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a07a05/The-Cosmic-Ordering-Service-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a08a01/The-Ultimate-Wealth-Creation-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a01a08a04a00a07/The-Cosmic-Ordering-Wish-Book-2013-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a01a08a08a01a00/Cosmic-Ordering-Oracle-Wish-Cards-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a07a09/The-Ultimate-Cosmic-Ordering-Meditation-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a07a07/The-Ultimate-Power-of-Positive-Thinking-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a01a08a08a00a04/Chakra-Clearing-Restore-your-grip-on-life-with-only-your-mind-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a08a05a06/The-Ultimate-Inner-Self-Link-Up-Discover-the-Real-You-Guided-Meditation-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/2a07a09a09a02a09/Gang-Wars-of-the-North-The-Inside-Story-of-the-Deadly-Battle-Between-Viv-Graham-and-Lee-Duffy-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/1a03a00a02a00a04/One-More-Time-The-Dal-Richards-Story-by-Dal-Richards.pdf
    • http://muicuiu.dumb1.com/4a04a01a00a09/Boost-by-Kathy-MacKel.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a08a06/7-Day-Focusin

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