Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29169594d8e5e80…

MALICIOUS

PDF

17.3 KB Created: 2019-05-07 04:23:27 +01:00 Authoring application: mPDF 5.7
MD5: a74821904e9079e858c66962fc9471eb SHA-1: b56dec55c94a95620bf498bed36ade762503e5e2 SHA-256: f29169594d8e5e80e574b61d30c0121a9bf853a18d88da9275c97d884b3e463f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. This suggests the document's primary purpose is to redirect users to external sites, potentially for SEO poisoning or to host malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

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/2a02a07a08a04a03/Dark-Side-of-Dawn-Nightmare-Chronicles-2-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/3a02a04a05a02a03/Before-I-Wake-Nightmare-Chronicles-1-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/3a03a02a08a00a09/Master-of-the-Dark-Side-Mountain-Masters-amp-Dark-Haven-4-by-Cherise-Sinclair.pdf
    • http://muicuiu.dumb1.com/3a05a06a00a06a05/Murder-Has-a-Memory-by-Kathryn-Dawn-O-39-Brien.pdf
    • http://muicuiu.dumb1.com/3a08a09a06a06/The-Other-Side-of-Dawn-Tomorrow-7-by-John-Marsden.pdf
    • http://muicuiu.dumb1.com/3a07a06a06a07a06/Dark-Dawn-Dark-Redemption-1-by-Melissa-Brodsky.pdf
    • http://muicuiu.dumb1.com/1a01a01a08a09/The-Morning-Side-of-Dawn-Holt-3-by-Justine-Davis.pdf
    • http://muicuiu.dumb1.com/2a05a07a09a04a04/A-Collection-of-Dark-Ouija-Board-Tales-True-Occult-Stories-from-the-Dark-Side-Occult-Occultism-by-S-Rain.pdf
    • http://muicuiu.dumb1.com/1a02a01a09a02a09/Taken-by-the-Night-Brotherhood-of-Blood-3-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/1a00a01a02a00a05a08/Unsterbliches-Verlangen-Brotherhood-of-Blood-1-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/6a07a05a07a09a02/A-Seductive-Offer-Friends-Trilogy-1-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/7a03a01a02a02/Let-the-Night-Begin-Brotherhood-of-Blood-4-by-Kathryn-Smith.pdf
    • http://muicuiu.dumb1.com/3a04a09a05a07/Dark-Side-of-the-Moon-Dark-Hunter-9-Were-Hunter-3-by-Sherrilyn-Kenyon.pdf
    • http://muicuiu.dumb1.com/4a07a04a09a07a09/Dark-Side-of-the-Moon-Dark-Hunter-9-Were-Hunter-3-by-Sherrilyn-Kenyon.pdf
    • http://muicuiu.dumb1.com/3a05a03a08a01a06/The-Wrong-Side-of-Paradise-by-Rustin-Smith.pdf
    • http://muicuiu.dumb1.com/9a02a05a01a00a05/Benjamin-Buckingham-And-The-Nightmare-s-Nightmare-by-Gregory-Gershwin.pdf
    • http://muicuiu.dumb1.com/6a08a02a00a02a06/A-Midsummer-Nights-Dream-With-Side-By-Side-Modern-English-Translation-Shakespeare-Side-By-Side-Translation-Book-14-by-William-Shakespeare.pdf
    • http://muicuiu.dumb1.com/2a07a08a02a00/The-Dark-Side-of-Nowhere-by-Neal-Shusterman.pdf
    • http://muicuiu.dumb1.com/3a00a06a08a03a00/Dark-Side-of-the-Sun-by-Addison-Cain.pdf
    • http://muicuiu.dumb1.com/8a09a05a08a08/The-Dark-Side-of-the-Sun-by-Terry-Pratchett.pdf
    • http://muicuiu.dumb1.com/1a00a01a02a00a05a08/Unst

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