Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7106fdc429228a…

MALICIOUS

PDF

26.1 KB Created: 2019-05-03 02:51:31 +01:00 Authoring application: mPDF 5.7
MD5: 9cb5cd52fab430b94351a33e072ffdc3 SHA-1: ce581250e94097743d244606087999abffa062fd SHA-256: bd7106fdc429228a7963a6fdb47bf475e1bd30afd75d33af07ca1851bc43c4a2
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to drive traffic to malicious sites. The ML classifier also flagged this file as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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/4a02a04a09a02a07/Why-Do-Smart-People-Make-Such-Stupid-Mistakes-by-Chris-Merrington.pdf
    • http://muicuiu.dumb1.com/1a00a09a02a05a09a01/Everyday-Survival-Why-Smart-People-Do-Stupid-Things-by-Laurence-Gonzales.pdf
    • http://muicuiu.dumb1.com/5a07a05a07a02a06/One-Stupid-Mistake-Smart-Decision-Making-in-a-Crazy-World-by-Charlie-Seraphin.pdf
    • http://muicuiu.dumb1.com/2a02a06a04a07a03/Why-We-Make-Mistakes-How-We-Look-Without-Seeing-Forget-Things-in-Seconds-and-Are-All-Pretty-Sure-We-Are-Way-Above-Average-by-Joseph-T-Hallinan.pdf
    • http://muicuiu.dumb1.com/8a06a02a00a07a09/How-Not-to-Write-a-Screenplay-101-Common-Mistakes-Most-Screenwriters-Make-by-Denny-Martin-Flinn.pdf
    • http://muicuiu.dumb1.com/4a03a03a05a00a03/Emails-from-an-Asshole-Real-People-Being-Stupid-by-John-Lindsay.pdf
    • http://muicuiu.dumb1.com/3a05a05a09a02a02/Hand-Drawn-Jokes-for-Smart-Attractive-People-by-Matthew-Diffee.pdf
    • http://muicuiu.dumb1.com/1a01a00a04a03a09a02/Master-Your-Money-Mindset-How-To-Make-Your-Business-Go-Ka-Ching-A-smart-guide-for-action-taking-entrepreneurs-by-Karen-Strunks.pdf
    • http://muicuiu.dumb1.com/3a09a02a07a00a00/Why-Smart-People-Hurt-A-Guide-for-the-Bright-the-Sensitive-and-the-Creative-by-Eric-Maisel.pdf
    • http://muicuiu.dumb1.com/6a09a02a08a09a02/V-is-for-Vulnerable-An-Alphabet-for-People-Who-Want-to-Make-a-Difference-by-Seth-Godin.pdf
    • http://muicuiu.dumb1.com/7a08a04a05a06a00/Great-Work-How-to-Make-a-Difference-People-Love-by-David-Sturt.pdf
    • http://muicuiu.dumb1.com/9a08a04a05a03a05/Smart-People-Should-Build-Things-How-to-Restore-Our-Culture-of-Achievement-Build-a-Path-for-Entrepreneurs-and-Create-New-Jobs-in-America-by-Andrew-Yang.pdf
    • http://muicuiu.dumb1.com/3a03a05a01a03a01/In-Plain-Sight-The-Startling-Truth-Behind-the-Elizabeth-Smart-Investigation-by-Tom-Smart.pdf
    • http://muicuiu.dumb1.com/2a03a05a08a02a07/Why-Can-t-I-Make-People-Understand-Discovering-the-Validation-Those-with-Chrinic-Illness-Seek-and-Why-by-Lisa-J-Copen.pdf
    • http://muicuiu.dumb1.com/4a00a02a04a03a04/A-People-s-History-of-the-World-by-Chris-Harman.pdf
    • http://muicuiu.dumb1.com/6a05a03a01a08a01/Rich-People-Things-by-Chris-Lehmann.pdf
    • http://muicuiu.dumb1.com/6a05a02a03a00/Are-We-Smart-Enough-to-Know-How-Smart-Animals-Are-by-Frans-de-Waal.pdf
    • http://muicuiu.dumb1.com/2a09a09a09/Are-We-Smart-Enough-to-Know-How-Smart-Animals-Are-by-Frans-de-Waal.pdf
    • http://muicuiu.dumb1.com/1a08a02a05a01a00/Hidden-America-From-Coal-Miners-to-Cowboys-an-Extraordinary-Exploration-of-the-Unseen-People-W-ho-Make-This-Country-Work-by-Jeanne-Marie-Laskas.pdf
    • http://muicuiu.dumb1.com/4a09a06a04a07a08/Six-Figure-Musician---How-to-Sell-More-Music-Get-More-People-to-Your-Shows-and-Make-More-Money-in-the-Music-Business-by-David-Hooper.pdf
    • http://muicuiu.dumb1.com/3a05a05a