Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84a6051b0549f70…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 01:57:41 +01:00 Authoring application: mPDF 5.7
MD5: 0af9d0abb9dacf711c1626831efd82e8 SHA-1: 779f9db50b32aa4685569c47962a4b201fca7b9a SHA-256: c84a6051b0549f70dc4d528620b66be58e39532d87d8317d0bb2cc90b79b3578
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3a02a09a08a09/River-God-Ancient-Egypt-1-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/4a09a06a01a01a06/River-God-A-Novel-of-Ancient-Egypt-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/1a09a04a05a09a04/River-God-Ancient-Egypt-1-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/7a05a02a05a06a06/The-Treasures-of-Ancient-Egypt-From-the-Rosetta-Stone-to-the-Tomb-of-Tutankhamun---The-Search-for-the-Riches-of-Ancient-Egypt-by-Jaromir-Malek.pdf
    • http://muicuiu.dumb1.com/5a00a02a09a09a07/The-Art-and-Architecture-of-Ancient-Egypt-by-W-Stevenson-Smith.pdf
    • http://muicuiu.dumb1.com/5a00a02a06a09a00/First-Civilizations-Ancient-Mesopotamia-and-Ancient-Egypt-by-Robert-Chadwick.pdf
    • http://muicuiu.dumb1.com/6a00a08a06a03a07/Rivers-of-Norfolk-River-Yare-River-Bure-River-Waveney-River-Nene-River-Ant-River-Thurne-North-Walsham-amp-Dilham-Canal-River-Wensum-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/2a08a03a04a08a07/Ancient-Egypt-by-David-P-Silverman.pdf
    • http://muicuiu.dumb1.com/8a02a01a02a07a02/Ancient-Egypt-by-Robert-Coupe.pdf
    • http://muicuiu.dumb1.com/1a00a07a07a09a09a09/Ancient-Egypt-by-Philip-Ardagh.pdf
    • http://muicuiu.dumb1.com/5a00a02a02a07a09/Women-in-Ancient-Egypt-by-Gay-Robins.pdf
    • http://muicuiu.dumb1.com/1a02a09a07a07a00/Eagle-in-the-Sky-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/5a00a02a04a05a08/An-introduction-to-Ancient-Egypt-by-James-Putnam.pdf
    • http://muicuiu.dumb1.com/4a00a05a07a06a00/Ancient-Egypt-Mesopotamia-Persia-by-Koutsoukis.pdf
    • http://muicuiu.dumb1.com/9a05a04a09a02a00/Conceptions-of-God-in-Ancient-Egypt-by-Erik-Hornung.pdf
    • http://muicuiu.dumb1.com/9a00a03a00a09a04/A-History-of-Ancient-Egypt-by-Nicolas-Grimal.pdf
    • http://muicuiu.dumb1.com/5a00a02a02a07a07/The-Oxford-History-of-Ancient-Egypt-by-Ian-Shaw.pdf
    • http://muicuiu.dumb1.com/1a00a07a02a05a08/The-Cat-of-Bubastes-A-Tale-of-Ancient-Egypt-by-G-A-Henty.pdf
    • http://muicuiu.dumb1.com/6a07a07a07a06a00/Gold-Mine-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/4a03a07a01a05/Elephant-Song-by-Wilbur-Smith.pdf
    • http://muicuiu.dumb1.com/6a00a08a06a03a07/Rivers-of-Norfolk-River-Yare-River-Bure-River-Waveney-River-Nene-River-Ant-River-Thurne-North-Walsham-amp-D

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