Malicious PDF — malware analysis report

Static analysis result for SHA-256 887731c1941731af…

MALICIOUS

PDF

14.6 KB Created: 2019-05-05 15:51:23 +01:00 Authoring application: mPDF 5.7
MD5: 01427494ac0ddccf4ddd2b421a85f0de SHA-1: d9e93fba87aefab90685a1ae16f3d52842a85919 SHA-256: 887731c1941731af35e6ef8f7d7a02cda1d454c45322af3db91c347a9f4d3a1e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to a single domain, characteristic of a link farm designed to distribute malicious content or engage in SEO abuse. The ML classifier strongly supports the malicious verdict. The primary attack pattern involves luring users to click on these links, which likely lead to further malicious downloads or phishing pages.

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/9a02a05a03a02a08/Wetter-a-short-story-of-horror-by-Brian-Fatah-Steele.pdf
    • http://muicuiu.dumb1.com/9a02a05a02a06a02/Paper-Cuts-Tales-of-Horror-amp-Fantasy-by-Brian-Fatah-Steele.pdf
    • http://muicuiu.dumb1.com/9a02a05a02a05a08/Further-Than-Fate-five-tales-of-post-mythic-darkness-by-Brian-Fatah-Steele.pdf
    • http://muicuiu.dumb1.com/9a02a05a03a03a01/These-Brewing-Abominations-an-Urban-Aeons-digital-short-by-Brian-Fatah-Steele.pdf
    • http://muicuiu.dumb1.com/3a03a07a00a00a00/Entropy-Entropy-1-by-Joshua-Edward-Smith.pdf
    • http://muicuiu.dumb1.com/1a01a04a03a07a00a04/Steele-Intent-The-Jasmine-Steele-Mystery-Series-Book-1-by-Kimberly-Amato.pdf
    • http://muicuiu.dumb1.com/8a01a00a04a09a07/ARMS-Eden-Lost-ARMS-4-by-Stephen-Arseneault.pdf
    • http://muicuiu.dumb1.com/2a09a07a02a08a08/Triumph-in-Arms-Masters-at-Arms-6-by-Jennifer-Blake.pdf
    • http://muicuiu.dumb1.com/8a01a00a05a05a05/ARMS-Beckland-s-Fall-ARMS-5-by-Stephen-Arseneault.pdf
    • http://muicuiu.dumb1.com/8a01a00a04a09a06/ARMS-Jebwa-Atrocity-ARMS-3-by-Stephen-Arseneault.pdf
    • http://muicuiu.dumb1.com/2a04a09a05a00a08/A-Steele-for-Christmas-Forged-of-Steele-9-by-Brenda-Jackson.pdf
    • http://muicuiu.dumb1.com/2a07a06a09a06a03/Red-Hot-Steele-Daggers-amp-Steele-1-by-Alex-P-Berg.pdf
    • http://muicuiu.dumb1.com/4a09a03a02a07a00/My-Gold-A-Steele-Fairy-Tale-1-by-C-M-Steele.pdf
    • http://muicuiu.dumb1.com/4a05a06a01a09a07/Riding-Steele-Kidnapped-Riding-Steele-1-by-Opal-Carew.pdf
    • http://muicuiu.dumb1.com/4a05a06a01a08a05/Riding-Steele-Collide-Riding-Steele-3-by-Opal-Carew.pdf
    • http://muicuiu.dumb1.com/4a05a06a03a00a00/Riding-Steele-Aftershock-Riding-Steele-6-by-Opal-Carew.pdf
    • http://muicuiu.dumb1.com/6a07a05a03a06a00/Entropy-by-Thomas-Pynchon.pdf
    • http://muicuiu.dumb1.com/3a04a05a00a04a01/Entropy-s-End-by-Chris-Reher.pdf
    • http://muicuiu.dumb1.com/3a00a07a06a00a08/Entropy-by-Bryn-Lucas.pdf
    • http://muicuiu.dumb1.com/1a03a06a01a05a04/Entropy-The-Countenance-3-by-Addison-Moore.pdf

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