Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea1439cd615c24b…

MALICIOUS

PDF

12.8 KB Created: 2019-04-30 03:32:38 +01:00 Authoring application: mPDF 5.7
MD5: 43909d42ccbc3ac8bfe650c758dc5eee SHA-1: 3709c0ed98a0b8ea00829796e98bc69f122a0a7c SHA-256: dea1439cd615c24bf5ba7601eb3bc597eb3f7743523c9c62e32c3cec6dacf49a
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, masquerading as book downloads. 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 identified the link farm pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/4a03a09a02a05a08/The-Fiery-Heart-Bloodlines-4-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/1a00a04a04a07/Bloodlines-Bloodlines-1-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/2a04a09a09a09a02/The-Indigo-Spell-Bloodlines-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/9a09a04a06/Silver-Shadows-Bloodlines-5-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a03a09a02a05a09/Silver-Shadows-Bloodlines-5-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/1a00a01a03a07a06a03/Bloodlines-Feuriges-Herz-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/2a05a08a01a02a05/The-Indigo-Spell-Bloodlines-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/2a09a02a00a00/Succubus-Revealed-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a04a07a04a04a06/Gameboard-of-the-Gods-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/9a03a08a06a02a09/Tocada-pelas-sombras-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a06a00a09a02a09/Frostbite-Vampire-Academy-2-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a07a04a00a06a03/Frostbite-Vampire-Academy-2-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a08a06a02a01a07/Frostbite-Vampire-Academy-2-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a02a02a04a00/Frostbite-Vampire-Academy-2-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a03a09a04a08/Succubus-on-Top-Georgina-Kincaid-2-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/2a07a04a05a08a01/Shadow-Kiss-Vampire-Academy-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a00a06a00a09a06/Shadow-Kiss-Vampire-Academy-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a01a04a03a03a02/Iron-Crowned-Dark-Swan-3-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a03a07a03a01/Storm-Born-Dark-Swan-1-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/4a00a06a00a09a08/Blood-Promise-Vampire-Academy-4-by-Richelle-Mead.pdf
    • http://muicuiu.dumb1.com/3a02a02a04a00/Frostbite-Vampire-Academy-

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