Malicious PDF — malware analysis report

Static analysis result for SHA-256 9523cd3b06ad6f84…

MALICIOUS

PDF

17.0 KB Created: 2019-04-30 05:23:50 +01:00 Authoring application: mPDF 5.7
MD5: 42a86d0bda230351a9abbe4bdbadd9a5 SHA-1: eeeffc92571f1ae4d45ee493270fd4ad67131cd4 SHA-256: 9523cd3b06ad6f844b201b3b92ff888dba68919d36c44bea9340ea16e473c397
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/1a07a01a00a07a03/Absorbing-White-The-White-Trilogy-3-by-Charlotte-E-Hart.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a08a08/Seeing-White-The-White-Trilogy-1-by-Charlotte-E-Hart.pdf
    • http://muicuiu.dumb1.com/1a00a08a06a05a06/White-Hart-White-Hart-1-by-Sarah-Dalton.pdf
    • http://muicuiu.dumb1.com/1a07a07a08a09a09/White-Trash-Beautiful-White-Trash-Trilogy-1-by-Teresa-Mummert.pdf
    • http://muicuiu.dumb1.com/2a09a01a06a01a04/White-Lotus-White-Lotus-Trilogy-1-by-Libbie-Hawker.pdf
    • http://muicuiu.dumb1.com/3a05a01a05a03a03/Charlotte-s-Web-by-E-B-White.pdf
    • http://muicuiu.dumb1.com/3a05a00a07a08a05/Charlotte-s-Web-by-E-B-White.pdf
    • http://muicuiu.dumb1.com/3a03a02a08a08a01/Power-Play-Charlotte-Powers-2-by-Ben-White.pdf
    • http://muicuiu.dumb1.com/6a07a00a07a01a03/A-Hard-Act-to-Follow-Caprice-48-by-Charlotte-White.pdf
    • http://muicuiu.dumb1.com/4a05a00a03a00a02/Dead-White-and-Blue-Death-on-Demand-23-by-Carolyn-G-Hart.pdf
    • http://muicuiu.dumb1.com/4a07a07a00a08a08/A-Man-Called-White-The-Autobiography-of-Walter-White-by-Walter-Francis-White.pdf
    • http://muicuiu.dumb1.com/7a02a08a00a07a05/White-Nation-Fantasies-of-White-Supremacy-in-a-Multicultural-Society-by-Ghassan-Hage.pdf
    • http://muicuiu.dumb1.com/8a02a00a08/White-Fragility-Why-It-s-So-Hard-for-White-People-to-Talk-About-Racism-by-Robin-DiAngelo.pdf
    • http://muicuiu.dumb1.com/2a03a00a09a08a06/White-Logic-White-Methods-Racism-and-Methodology-by-Tukufu-Zuberi.pdf
    • http://muicuiu.dumb1.com/2a07a08a04a09a01/White-House-Autumn-The-President-s-Daughter-2-by-Ellen-Emerson-White.pdf
    • http://muicuiu.dumb1.com/4a04a00a07a08a02/A-Dream-of-Ebony-and-White-A-Retelling-of-Snow-White-Beyond-the-Four-Kingdoms-Book-4-by-Melanie-Cellier.pdf
    • http://muicuiu.dumb1.com/4a00a00a05a04a08/White-Awake-An-Honest-Look-at-What-It-Means-to-Be-White-by-Daniel-Hill.pdf
    • http://muicuiu.dumb1.com/1a03a02a04a00a04/White-The-Wings-Trilogy-1-by-Angelina-J-Steffort.pdf
    • http://muicuiu.dumb1.com/3a00a02a01a07a02/White-on-Black-on-White-by-Coleman-Dowell.pdf
    • http://muicuiu.dumb1.com/5a00a09a04a08/White-Heat-Perfect-Fire-Trilogy-2-by-K-M-Grant.pdf
    • http://muicuiu.dumb1.com/7a02a08a00a07a05/White-Nation-Fantasies-of-White-Supremacy-in-a-Multicultural-Society

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