Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcc8ecceb9e1157…

MALICIOUS

PDF

16.9 KB Created: 2019-05-01 08:11:12 +01:00 Authoring application: mPDF 5.7
MD5: 411d386f582d627ec527a66c3035866e SHA-1: 4526616fb42b89edf63b6e1a26668d0fd5a4dd7b SHA-256: 2fcc8ecceb9e115797c36e23fa62ecf211831cc699e22628037650849818f53f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 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 strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. No scripts were extracted, but the structure suggests a delivery mechanism for potentially harmful content hosted externally.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3a07a03a08a05a08/Murder-on-the-Robot-City-Express-Robot-City-Adventures-4-by-Paul-Collicutt.pdf
    • http://muicuiu.dumb1.com/3a07a03a08a07a03/City-in-Peril-Robot-City-Adventures-1-by-Paul-Collicutt.pdf
    • http://muicuiu.dumb1.com/3a07a03a08a06a08/Rust-Attack-Robot-City-Adventures-2-by-Paul-Collicutt.pdf
    • http://muicuiu.dumb1.com/1a06a04a02a02a02/The-Soul-of-the-Robot-Robot-1-by-Barrington-J-Bayley.pdf
    • http://muicuiu.dumb1.com/2a07a04a03a02/Robot-Dreams-Robot-0-4-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/5a06a08a06a03a04/Robot-Intelligence-Technology-and-Applications-4-Results-from-the-4th-International-Conference-on-Robot-Intelligence-Technology-and-Applications-by-Jong-Hwan-Kim.pdf
    • http://muicuiu.dumb1.com/5a05a04a01a02a01/Fictional-City-States-Laputa-Baldur-s-Gate-Gaia-Mega-City-One-Ankh-Morpork-New-Crobuzon-Themyscira-Free-City-of-Greyhawk-Sanctaphrax-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/2a02a09a07a02/I-Robot-by-Howard-S-Smith.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a04a06a02/God-Robot-by-Anthony-Marchetta.pdf
    • http://muicuiu.dumb1.com/1a07a05a03a06a09/Boy-Robot-by-Simon-Curtis.pdf
    • http://muicuiu.dumb1.com/1a07a08a00a03a05/The-Naked-Sun-Robot-2-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/6a08a04a06a00a06/Robot-Volume-6-by-Range-Murata.pdf
    • http://muicuiu.dumb1.com/7a04a01a09a06a09/Mama-Robot-by-Davide-Cali.pdf
    • http://muicuiu.dumb1.com/8a05a04a07a08a04/The-Big-Guy-and-Rusty-the-Boy-Robot-by-Frank-Miller.pdf
    • http://muicuiu.dumb1.com/4a02a05a06a07a02/A-Robot-in-the-Garden-by-Deborah-Install.pdf
    • http://muicuiu.dumb1.com/8a05a04a08a05a05/Rusty-Robot-by-Roger-Priddy.pdf
    • http://muicuiu.dumb1.com/9a04a04a01a01a06/The-Capricious-Robot-by-Shinichi-Hoshi.pdf
    • http://muicuiu.dumb1.com/4a03a00a05a05a02/Rabbit-amp-Robot-by-Andrew-Smith.pdf
    • http://muicuiu.dumb1.com/6a08a04a04a08a09/Robot-Volume-3-by-Range-Murata.pdf
    • http://muicuiu.dumb1.com/3a05a05a07a01a04/La-Vida-Robot-by-Joshua-Davis.pdf
    • http://muicuiu.dumb1.com/5a05a04a01a02a01/Fictional-City-States-Laputa-B

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