Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7c9a24358f5f6a…

MALICIOUS

PDF

20.6 KB Created: 2019-05-02 00:41:47 +01:00 Authoring application: mPDF 5.7
MD5: e42d3dcd55e3b3c4f377147d0eb90abd SHA-1: 5769fa07a86c26b965aa06af02c2ce2f6d4e17de SHA-256: cc7c9a24358f5f6a028da6eee6afcbd5dc1b35e033a972b3993772ed219a6024
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. While the ML classifier also flagged this as malicious, the specific intent appears to be SEO manipulation or directing users to a link farm rather than direct payload delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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/4a08a05a04a01a03/In-Place-of-Never-by-Julie-Anne-Lindsey.pdf
    • http://muicuiu.dumb1.com/2a02a07a01a01a09/Satan-Is-Alive-and-Well-on-Planet-Earth-by-Hal-Lindsey.pdf
    • http://muicuiu.dumb1.com/3a07a05a03a05a01/No-Place-on-Earth-by-Christa-Wolf.pdf
    • http://muicuiu.dumb1.com/4a02a06a02a00a07/The-Last-Place-on-Earth-by-Roland-Huntford.pdf
    • http://muicuiu.dumb1.com/1a07a00a08a06a03/The-Last-Place-on-Earth-by-Carol-Snow.pdf
    • http://muicuiu.dumb1.com/7a00a00a01a07a07/Paradise-Regained-The-Regreening-of-Earth-by-Les-Johnson.pdf
    • http://muicuiu.dumb1.com/2a00a04a07a08a03/My-Holiday-in-North-Korea-The-Funniest-Worst-Place-on-Earth-by-Wendy-E-Simmons.pdf
    • http://muicuiu.dumb1.com/4a01a05a07a06a08/The-Most-Southern-Place-on-Earth-The-Mississippi-Delta-and-the-Roots-of-Regional-Identity-by-James-C-Cobb.pdf
    • http://muicuiu.dumb1.com/1a00a05a08a06a00a03/Secrets-of-Walt-Disney-World-Weird-and-Wonderful-Facts-about-the-Most-Magical-Place-on-Earth-by-Dinah-Williams.pdf
    • http://muicuiu.dumb1.com/3a01a00a04a03a03/A-Dangerous-Dance-Save-the-Last-Dance-1-by-Jude-Johnson.pdf
    • http://muicuiu.dumb1.com/4a01a05a04a07a01/Dangerous-Rock-Dangerous-Noise-3-by-Crystal-Kaswell.pdf
    • http://muicuiu.dumb1.com/4a01a05a03a07a05/Dangerous-Crush-Dangerous-Noise-2-by-Crystal-Kaswell.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a04a07/Dangerous-Dangerous-Trilogy-1-by-Suzannah-Daniels.pdf
    • http://muicuiu.dumb1.com/1a09a09a05a04a03/A-Dangerous-Low-Dangerous-Low-Series-1-by-Michael-Stephenson.pdf
    • http://muicuiu.dumb1.com/7a00a05a09a09a09/Dying-Earth-The-Dying-Earth-the-Eyes-of-the-Overworld-Liane-the-Wayfarer-Cugel-s-Saga-Tales-of-the-Dying-Earth-Turjan-by-Books-LLC.pdf
    • http://muicuiu.dumb1.com/1a01a06a02a08a08a05/Jurassic-Earth-2-Prologue-The-Last-Woman-on-Earth-The-Jurassic-Earth-Saga-by-Logan-T-Stark.pdf
    • http://muicuiu.dumb1.com/1a07a01a00a07a01/A-Dangerous-Man-A-Dangerous-Man-1-3-by-Serena-Grey.pdf
    • http://muicuiu.dumb1.com/1a00a09a09a00a00a03/Crazy-Rich-Power-Scandal-and-Tragedy-Inside-the-Johnson-amp-Johnson-Dynasty-by-Jerry-Oppenheimer.pdf
    • http://muicuiu.dumb1.com/1a05a08a08a01a03/Dolly-and-the-Bird-of-Paradise-Johnson-Johnson-6-by-Dorothy-Dunnett.pdf
    • http://muicuiu.dumb1.com/9a02a06a05a06a02/Earth-Construction-Handbook-The-Building-Material-Earth-in-Modern-Architecture-by-Gernot-Minke.pdf
    • http://muicuiu.dumb1.com/1a00a05a08a06a00a03/Secrets-of-Walt-Disney-World-Weird-and-Wonderful-Facts-about-the-Most-Magical-Place-on

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