Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0a51448d099a98…

MALICIOUS

PDF

16.9 KB Created: 2019-04-30 03:36:26 +01:00 Authoring application: mPDF 5.7
MD5: 6a1c52c5d68427b491316b6791dfe46a SHA-1: 6f286c0571f07f76b77d381384f0df18def72ed6 SHA-256: 7e0a51448d099a98d8bdaa4e6f5de7588515bc98f1b990f8500cd17f0c321674
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic, which suggests an attempt to manipulate search results or distribute further malicious content. While the specific intent of these links is unclear due to their benign reputation, the sheer volume and the heuristic firing indicate a suspicious pattern. 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/5a00a04a06a03/Wind-Chime-Point-Ocean-Breeze-2-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/1a08a08a08a01a06/Wind-Chime-Wedding-Wind-Chime-2-by-Sophie-Moss.pdf
    • http://muicuiu.dumb1.com/6a08a06a07a08a01/Twilight-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/6a08a04a01a03a09/Jamaican-Midnight-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/3a07a04a06a03a01/A-Christmas-Blessing-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/8a02a05a06a05a04/The-Delacourt-Scandal-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/2a01a07a01a04a01/Home-in-Carolina-The-Sweet-Magnolias-5-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/5a05a00a06a07/Moonlight-Cove-Chesapeake-Shores-6-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/3a07a04a03a00a08/A-Seaside-Christmas-Chesapeake-Shores-10-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/3a05a08a00a02a06/Honeysuckle-Summer-The-Sweet-Magnolias-7-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/1a06a09a01a00a06/Willow-Brook-Road-Chesapeake-Shores-13-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/2a07a02a06a09a01/For-the-Love-of-Pete-Rose-Cottage-Sisters-4-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/8a02a05a06a06a06/A-Mother-At-Heart-The-Pint-Sized-Secret-Marrying-A-Delacourt-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/8a02a05a06a06a09/Marrying-a-Delacourt-The-Delacourt-Scandal-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/3a09a08a01a05a07/Run-Before-the-Wind-Will-Lee-2-by-Stuart-Woods.pdf
    • http://muicuiu.dumb1.com/2a05a03a02a03a00/An-Ocean-of-Air-Why-the-Wind-Blows-and-Other-Mysteries-of-the-Atmosphere-by-Gabrielle-Walker.pdf
    • http://muicuiu.dumb1.com/2a07a04a07a03a02/Seaview-Inn-Seaview-Key-1-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/8a03a08a00a04a04/The-Devaney-Brothers-Ryan-and-Sean-Ryan-s-Place-Sean-s-Reckoning-by-Sherryl-Woods.pdf
    • http://muicuiu.dumb1.com/6a02a07a09a05a05/The-Ocean-of-Churn-How-the-Indian-Ocean-Shaped-Human-History-by-Sanjeev-Sanyal.pdf
    • http://muicuiu.dumb1.com/9a01a01a02a05a00/Coral-Reef-Fishes-Caribbean-Indian-Ocean-and-Pacific-Ocean-Including-the-Red-Sea---Revised-Edition-by-Ewald-Lieske.pdf

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