Malicious PDF — malware analysis report

Static analysis result for SHA-256 f06d5c66bc423017…

MALICIOUS

PDF

17.2 KB Created: 2019-04-30 05:24:33 +01:00 Authoring application: mPDF 5.7
MD5: 3dee8d0aa350b86fcea7aaad488c3dc5 SHA-1: dfda244abefe06f2cf846140fabc6e590310b1db SHA-256: f06d5c66bc42301735c7030e51e250a615ea9c874a0589f3e39987dd66b05bd5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the link farm suggests a delivery mechanism for further payloads or phishing 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/1a02a03a07a09a09/Mortality-The-Hitchhiker-Strain-1-by-Kellie-Sheridan.pdf
    • http://muicuiu.dumb1.com/1a02a01a02a05a03/Follow-the-White-Rabbit-Beautiful-Madness-1-by-Kellie-Sheridan.pdf
    • http://muicuiu.dumb1.com/1a00a08a07a05/The-Strain-The-Strain-Trilogy-1-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/4a08a05a03a01a07/The-Strain-The-Strain-Trilogy-1-by-Guillermo-del-Toro.pdf
    • http://muicuiu.dumb1.com/3a06a01a09a09a03/Strain-Strain-1-by-Amelia-C-Gormley.pdf
    • http://muicuiu.dumb1.com/7a01a09a01a02a07/The-Room-in-the-Dragon-Volant-by-J-Sheridan-Lefanu-Fiction-Horror-by-J-Sheridan-Le-Fanu.pdf
    • http://muicuiu.dumb1.com/3a08a01a00a02a01/The-Hitchhiker-s-Guide-to-the-Galaxy-Hitchhiker-s-Guide-1-by-Douglas-Adams.pdf
    • http://muicuiu.dumb1.com/4a07a07a07a02a09/The-Hitchhiker-s-Guide-to-the-Galaxy-Hitchhiker-s-Guide-1-by-Douglas-Adams.pdf
    • http://muicuiu.dumb1.com/5a05a00a06a09a07/Strain-of-Resistance-Strain-of-Resistance-1-by-Michelle-Bryan.pdf
    • http://muicuiu.dumb1.com/1a08a07a00a03a02/The-Hitchhiker-s-Guide-to-the-Galaxy-Hitchhiker-s-Guide-to-the-Galaxy-1-by-Douglas-Adams.pdf
    • http://muicuiu.dumb1.com/1a01a03a02a08a09a01/The-Archie-Sheridan-and-Gretchen-Lowell-Series-Archie-Sheridan-amp-Gretchen-Lowell-1-3-by-Chelsea-Cain.pdf
    • http://muicuiu.dumb1.com/4a00a06a01a09a02/Kellie-s-Diary-2-by-Thomas-Jenner.pdf
    • http://muicuiu.dumb1.com/4a03a06a00a04a06/The-Wait-by-Kellie-Frances-Joyce.pdf
    • http://muicuiu.dumb1.com/9a04a09a02a08/Magic-in-the-Backyard-by-Kellie-Elmore.pdf
    • http://muicuiu.dumb1.com/2a04a05a05a01a08/Sissy-Dreams-Being-Kellie-by-Paul-Zante.pdf
    • http://muicuiu.dumb1.com/3a02a05a08a04a01/Flightless-Bird-The-Caged-1-by-Kellie-McAllen.pdf
    • http://muicuiu.dumb1.com/3a02a05a06a00a08/Taking-Flight-The-Caged-3-by-Kellie-McAllen.pdf
    • http://muicuiu.dumb1.com/3a01a05a03a05a09/Mortality-by-Christopher-Hitchens.pdf
    • http://muicuiu.dumb1.com/3a00a03a09a08/Mortality-by-Christopher-Hitchens.pdf
    • http://muicuiu.dumb1.com/1a07a09a04a08a00/Celery-Sex-and-Other-Good-Things-For-The-Heart-by-Kellie-Kamryn.pdf

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