Malicious PDF — malware analysis report

Static analysis result for SHA-256 3334d68289cf9009…

MALICIOUS

PDF

17.7 KB Created: 2019-04-30 01:52:04 +01:00 Authoring application: mPDF 5.7
MD5: fa5dbe1c43c0c6e6188990cda722b0c4 SHA-1: d08ccfc91eaf568384cb0cf8dd81d2a57c9dd1c0 SHA-256: 3334d68289cf90096ec33280bcc2f72d33c2edd460fa9769ae5054b720ffb98f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to redirect users to 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 0.9788

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.dum
    • 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/3a07a01a06a06a03/Fields-of-Battle-The-Wars-for-North-America-by-John-Keegan.pdf
    • http://muicuiu.dumb1.com/1a03a00a01a08a05/The-Last-Gang-in-Town-The-Epic-Story-of-the-Vancouver-Police-vs-the-Clark-Park-Gang-by-Aaron-Chapman.pdf
    • http://muicuiu.dumb1.com/3a08a05a05a02a08/Glorious-First-Of-June-1794-A-Naval-Battle-and-its-Aftermath-by-Michael-Duffy.pdf
    • http://muicuiu.dumb1.com/1a00a03a00a09a01a09/The-Crunch-Gang-Meets-The-Deadly-Zombie-Ninjas-of-Japan-by-Ronald-Cordova.pdf
    • http://muicuiu.dumb1.com/1a03a00a02a00a04/One-More-Time-The-Dal-Richards-Story-by-Dal-Richards.pdf
    • http://muicuiu.dumb1.com/6a02a00a06a07a05/The-Danger-Gang-and-the-Pirates-of-Borneo-by-Stephen-Bramucci.pdf
    • http://muicuiu.dumb1.com/1a03a01a05a01a08/Deadly-Night-Flynn-Brothers-1-by-Heather-Graham.pdf
    • http://muicuiu.dumb1.com/3a00a03a07a09a05/Deadly-Gift-Flynn-Brothers-3-by-Heather-Graham.pdf
    • http://muicuiu.dumb1.com/1a06a01a08a06a01/The-Last-Act-Pierre-Trudeau-the-Gang-of-Eight-and-the-Fight-for-Canada-The-History-of-Canada-by-Ron-Graham.pdf
    • http://muicuiu.dumb1.com/6a03a07a07a06/Forest-Wars-by-Graham-Diamond.pdf
    • http://muicuiu.dumb1.com/8a08a09a02a06a01/Mind-Wars-The-Battle-for-Your-Brain-by-Ian-McFadyen.pdf
    • http://muicuiu.dumb1.com/6a09a04a08a09a06/The-Battle-of-Riptide-Sharks-Wars-2-by-E-J-Altbacker.pdf
    • http://muicuiu.dumb1.com/3a03a04a09a08a00/Viv-and-the-Geordie-Mafia-Vol-2-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a08a05a07/The-Releasing-You-From-Insomnia-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a03a03a00/Boost-Your-Self-Esteem-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a08a06/7-Day-Focusing-Plan-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/6a07a06a06a02a08/Wars-The-Battle-of-Phobos-Vol-1---Preludes-by-Nathan-P-Butler.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a07a05/The-Cosmic-Ordering-Service-by-Stephen-Richards.pdf
    • http://muicuiu.dumb1.com/1a06a02a03a03a02/The-Ultimate-Success-In-Love-by-Stephen-Richards.pdf

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