Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdaf749700da99bc…

MALICIOUS

PDF

14.7 KB Created: 2019-05-01 05:04:59 +01:00 Authoring application: mPDF 5.7
MD5: e247749a733f9d491a27e9a5860a3751 SHA-1: 91cef708a8bdd1e685c21bb2b46bcd2f3010a2c6 SHA-256: cdaf749700da99bcb4bf146de4225b0b311d3b05d1a7e9abacbfc363f401930f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, masquerading as literary works. This technique is often used to drive traffic to malicious sites or to host further malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/2a09a04a00a05a07/Come-On-In-New-Poems-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/8a00a03a02a06/The-Continual-Condition-Poems-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/7a02a03a04a02a01/The-Flash-of-Lightning-Behind-the-Mountain-New-Poems-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/1a00a02a08a04a03a02/Burning-in-Water-Drowning-in-Flame-Selected-Poems-1955-1973-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/9a00a05a06a04/Run-With-the-Hunted-A-Charles-Bukowski-Reader-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/2a09a01a06a07a09/Women-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/9a09a07a04a05a03/Factotum-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/3a03a09a06a00/Factotum-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/3a04a06a02a01/Pulp-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/4a01a08a02a08/Notes-of-a-Dirty-Old-Man-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/2a02a07a07a07a09/Love-is-a-Dog-from-Hell-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/9a01a00a00a03a04/Irgendwo-in-Texas-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/4a03a06a02a09a03/Post-Office-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/1a00a01a05a02a03a07/Screams-from-the-Balcony-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/4a05a05a00a07a05/Terpentin-on-the-rocks-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/1a05a08a04a06a07/What-Matters-Most-is-How-Well-You-Walk-Through-the-Fire-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/5a06a08a02a04/You-Get-So-Alone-at-Times-That-it-Just-Makes-Sense-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/1a00a01a05a02a03a09/More-Notes-of-a-Dirty-Old-Man-The-Uncollected-Columns-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/7a06a05a04a02/Burning-in-Water-Drowning-in-Flame-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/8a04a02a01a08a08/Flower-Fist-and-Bestial-Wail-by-Charles-Bukowski.pdf
    • http://muicuiu.dumb1.com/4a03a06

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