Malicious PDF — malware analysis report

Static analysis result for SHA-256 93d18a1f95479ff3…

MALICIOUS

PDF

14.6 KB Created: 2019-05-03 05:08:15 +01:00 Authoring application: mPDF 5.7
MD5: b1fe1af498295b14972dfbde73d0d5a1 SHA-1: 61aa2af41d72ec7ce0c45163bd05e94f990a4dbe SHA-256: 93d18a1f95479ff3bdb68927527ffaad4185c176c93eb03fd4fb0d08c76ce717
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently flagged as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO poisoning or to host further malicious content. The ML_NYX_PDF_MALICIOUS classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/5a08a08a04a08/Kick-Me-Adventures-in-Adolescence-by-Paul-Feig.pdf
    • http://muicuiu.dumb1.com/1a07a04a04a01a08/One-Kick-Kick-Lannigan-1-by-Chelsea-Cain.pdf
    • http://muicuiu.dumb1.com/3a08a01a03a01a06/One-Kick-Kick-Lannigan-1-by-Chelsea-Cain.pdf
    • http://muicuiu.dumb1.com/4a08a07a03a00a09/One-Kick-Kick-Lannigan-1-by-Chelsea-Cain.pdf
    • http://muicuiu.dumb1.com/4a04a04a01a03a00/Kick-Ass-3-Kick-Ass-3-by-Mark-Millar.pdf
    • http://muicuiu.dumb1.com/8a06a07a02a01/Kick-Ass-Kick-Ass-1-by-Mark-Millar.pdf
    • http://muicuiu.dumb1.com/7a09a03a02a04a03/Countess-du-Barry-Mistress-of-Loius-XV-by-Law-Capet-Feig.pdf
    • http://muicuiu.dumb1.com/1a01a03a05a06a05a05/Kick-Push-amp-Coast-Duet-Includes-Kick-Push-and-Coast-by-Jay-McLean.pdf
    • http://muicuiu.dumb1.com/8a05a04a07a08a01/The-Adventures-of-Reece-amp-Rusty-by-George-Paul.pdf
    • http://muicuiu.dumb1.com/6a04a04a08a08/The-Batman-Adventures-Mad-Love-and-Other-Stories-by-Paul-Dini.pdf
    • http://muicuiu.dumb1.com/3a07a02a08a09a01/DC-Comics-Presents-Wonder-Woman-Adventures-by-Paul-Dini.pdf
    • http://muicuiu.dumb1.com/1a01a07a00a01a04/Fergus-Crane-Far-Flung-Adventures-1-by-Paul-Stewart.pdf
    • http://muicuiu.dumb1.com/3a07a03a08a06a08/Rust-Attack-Robot-City-Adventures-2-by-Paul-Collicutt.pdf
    • http://muicuiu.dumb1.com/3a06a03a08a01a00/A-Musing-Adolescence-by-L-M-Smith.pdf
    • http://muicuiu.dumb1.com/7a09a04a07a01a05/Adolescence-by-Laurence-Steinberg.pdf
    • http://muicuiu.dumb1.com/7a07a03a05a06a08/Preparing-for-Adolescence-by-James-C-Dobson.pdf
    • http://muicuiu.dumb1.com/4a09a04a03a01a06/The-Art-of-Starvation-An-Adolescence-Observed-by-Sheila-Macleod.pdf
    • http://muicuiu.dumb1.com/1a00a03a00a09a01a01/Self-Understanding-in-Childhood-and-Adolescence-by-William-Damon.pdf
    • http://muicuiu.dumb1.com/1a06a08a03a01a02/Eating-Disorders-in-Childhood-and-Adolescence-by-Bryan-Lask.pdf
    • http://muicuiu.dumb1.com/7a09a04a07a01a09/Age-of-Opportunity-Lessons-from-the-New-Science-of-Adolescence-by-Laurence-Steinberg.pdf

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