Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba8b0e7e7819306…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 03:29:59 +01:00 Authoring application: mPDF 5.7
MD5: cbe5e47c928c71eb8d948cef1ddd4228 SHA-1: 0613c4cf69095e6b3a5f5712a4ecb28a945ad14a SHA-256: 1ba8b0e7e78193069c810106d116cd00c36387b637997bbc1f67bbf125bdbc66
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 direct users to malicious content. The ML classifier strongly indicated maliciousness. While the specific URLs are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users. No scripts were extracted from this sample.

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/4a05a00a00a06a05/A-Feather-on-the-Breath-of-Ellulianaen-by-Robert-Denethon-Gryphonomicon-Gryphon-Dragon-Histories-by-Robert-Denethon.pdf
    • http://muicuiu.dumb1.com/4a05a00a00a05a05/Gryphon-of-the-Hidden-Realm-by-Robert-Denethon-Gryphonomicon-Gryphon-Dragon-Histories-by-Robert-Denethon.pdf
    • http://muicuiu.dumb1.com/3a06a03a00a07a00/Transforming-Fate-Into-Destiny-A-New-Dialogue-with-Your-Soul-by-Robert-Ohotto.pdf
    • http://muicuiu.dumb1.com/4a03a04a07a01a01/Call-of-Destiny-One-Small-Step-out-of-the-Garden-of-Eden-1-by-Robert-Wagoner.pdf
    • http://muicuiu.dumb1.com/3a08a01a07a06a01/Dark-Destiny-Destiny-Novella-Trilogy-1-by-Kari-Gray.pdf
    • http://muicuiu.dumb1.com/2a02a03a03a02/They-Call-Me-Destiny-by-Destiny-Kalser-with-Fern-Field-Brooks.pdf
    • http://muicuiu.dumb1.com/3a09a08a05a03a04/Destiny-s-Choice-Destiny-s-Series-2-by-Victoria-Saccenti.pdf
    • http://muicuiu.dumb1.com/2a04a09a09a01a00/Destiny-Divided-Shadows-of-Destiny-1-by-Leia-Shaw.pdf
    • http://muicuiu.dumb1.com/2a01a08a07a09a05/Cherishing-Destiny-A-Dangerous-Destiny-1-by-Noelle-Blakely.pdf
    • http://muicuiu.dumb1.com/3a09a08a03a03a02/Destiny-s-Way-Destiny-s-Series-3-by-Victoria-Saccenti.pdf
    • http://muicuiu.dumb1.com/1a04a05a01a07a06/Destiny-s-Embrace-Destiny-1-by-Beverly-Jenkins.pdf
    • http://muicuiu.dumb1.com/3a07a04a00a00a08/Christmas-in-Destiny-Destiny-7-by-Toni-Blake.pdf
    • http://muicuiu.dumb1.com/8a09a02a02a07/Talon-by-J-P-Mercer.pdf
    • http://muicuiu.dumb1.com/1a02a04a00a08a06/Destiny-Destiny-1-by-Cindy-Ray-Hale.pdf
    • http://muicuiu.dumb1.com/8a03a00a07a04a06/Talon-by-Janet-Lee-Carey.pdf
    • http://muicuiu.dumb1.com/8a03a00a06a00a02/Talon-The-Uncompromising-1-by-Sybil-Bartel.pdf
    • http://muicuiu.dumb1.com/2a03a00a01a09a09/Talon-s-Heart-by-Jordan-Silver.pdf
    • http://muicuiu.dumb1.com/8a03a00a07a04a08/The-Eagle-s-Talon-by-John-French.pdf
    • http://muicuiu.dumb1.com/1a02a09a02a07a01/On-the-Wing-Talon-2-by-Gigi-Sedlmayer.pdf
    • http://muicuiu.dumb1.com/8a03a00a07a06a04/Eye-and-Talon-Blade-Runner-4-by-K-W-Jeter.pdf
    • http://muicuiu.dumb1.com/3a09a08a05a03a04/Destiny-s-Choice-Destiny-s-Series-2-

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