Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20eb8d640066a4a…

MALICIOUS

PDF

18.0 KB Created: 2019-05-02 01:26:11 +01:00 Authoring application: mPDF 5.7
MD5: a5a3c0af3a4f8bedfe146225162c074b SHA-1: 081f8a93ef0e304aa32af13616596692ae141b47 SHA-256: f20eb8d640066a4a85388f69e62f9cdb5193c582614ccc386a510c7f5db85e0a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/3a03a07a00a07a07/Elijah-The-Boss-s-Gift-Deadly-Duet-3-by-Sam-Crescent.pdf
    • http://muicuiu.dumb1.com/3a00a06a08a06a06/Fear-the-Boss-Deadly-Duet-1-by-Sam-Crescent.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a09a05/The-Scarred-One-Deadly-Duet-2-by-Sam-Crescent.pdf
    • http://muicuiu.dumb1.com/7a07a04a09a01/Married-To-A-Deadly-Bitch-2-by-Elijah-Foreman.pdf
    • http://muicuiu.dumb1.com/3a00a03a07a09a05/Deadly-Gift-Flynn-Brothers-3-by-Heather-Graham.pdf
    • http://muicuiu.dumb1.com/7a03a06a06a06a00/Elijah-Deville-in-Judged-Worthy-of-Death-Elijah-Deville-Mystery-Series-Book-2-by-J-R-Diestelkamp.pdf
    • http://muicuiu.dumb1.com/3a09a05a02a00a05/What-to-Talk-About-On-a-Plane-at-a-Cocktail-Party-in-a-Tiny-Elevator-with-Your-Boss-s-Boss-by-Chris-Colin.pdf
    • http://muicuiu.dumb1.com/1a01a07a05a03a03a00/Good-Boss-Bad-Boss-How-to-Be-the-Best-and-Learn-from-the-Worst-by-Robert-I-Sutton.pdf
    • http://muicuiu.dumb1.com/4a00a03a09a01a09/The-Boss-s-Son---Part-1-The-Boss-s-Son-1-by-Sierra-Rose.pdf
    • http://muicuiu.dumb1.com/3a01a00a00a08a09/Love-a-Boss-Like-a-Boss-2-by-Logan-Chance.pdf
    • http://muicuiu.dumb1.com/2a04a07a08a04/Throne-of-the-Crescent-Moon-The-Crescent-Moon-Kingdoms-1-by-Saladin-Ahmed.pdf
    • http://muicuiu.dumb1.com/4a09a03a01a05a06/Throne-of-the-Crescent-Moon-The-Crescent-Moon-Kingdoms-1-by-Saladin-Ahmed.pdf
    • http://muicuiu.dumb1.com/2a08a01a08a00a02/The-Boss-Killers-Bad-day-at-the-office-Call-The-Boss-Killers-by-Keith-Gillison.pdf
    • http://muicuiu.dumb1.com/2a09a07a03a02a01/The-Boss-Killers-Bad-day-at-the-office-Call-The-Boss-Killers-by-Keith-Gillison.pdf
    • http://muicuiu.dumb1.com/7a09a06a01a04/Crescent-City-Crescent-City-1-by-Sarah-J-Maas.pdf
    • http://muicuiu.dumb1.com/5a03a05a06a03a04/Revenge-The-7th-Deadly-Sin-Alternate-Ending-G-Spot-2-The-Seven-Deadly-Sins-by-Noire.pdf
    • http://muicuiu.dumb1.com/1a03a03a04a03a03/Deadly-Love-Francesca-Cahill-Deadly-1-by-Brenda-Joyce.pdf
    • http://muicuiu.dumb1.com/4a03a09a04a09a00/Deadly-Deception-A-Deadly-Novel-Book-One-by-Andrea-Johnson-Beck.pdf
    • http://muicuiu.dumb1.com/2a08a00a07a08a00/Deadly-Crush-Deadly-Trilogy-1-by-Ashley-Stoyanoff.pdf
    • http://muicuiu.dumb1.com/2a08a06a02a05a01/Deadly-Dreams-Deadly-Mystery-3-by-Victor-J-Banis.pdf
    • http://muicuiu.dumb1.com/3a09a05a02a00a05/What-to-Talk-About-On-a-P