Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce50c24923bed27c…

MALICIOUS

PDF

14.7 KB Created: 2019-04-30 04:02:29 +01:00 Authoring application: mPDF 5.7
MD5: 29b8b4db993931f24e0d566d42b06e00 SHA-1: 9a684724abe277892fa381bd3b59133c380d364b SHA-256: ce50c24923bed27cc26939814df8e0e5a0b0c6d22852599128373d9d29f93339
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF files. The ML classifier also flagged this document as malicious. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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://loaminoo.linkpc.net/9090097096090090/W-chterin-der-Erde-Sea-Have-4-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/2097090095095097/Christine-Feehan-Box-Set-includes-Drake-Sisters-3-Dark-Saga-10-GhostWalkers-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/1090095091098099/A-Christine-Feehan-Holiday-Treasury-Drake-Sisters-2-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/2092095090095094/A-Very-Gothic-Christmas-Feehan-Christmas-Stories-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/2099096099094093/Dark-Prince-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/3090092097095090/Dark-Desire-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/2099093097097096/Judgment-Road-Torpedo-Ink-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/3092091098092091/Dark-Prince-Carpathians-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/7090092097098092/The-Awakening-Leopard-People-0-5-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/4093091093099094/Samurai-Game-Ghostwalkers-10-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/4093091093098099/Predatory-Game-GhostWalkers-6-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/4096094090098098/Turbulent-Sea-Drake-Sisters-6-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/4091091096095091/Conspiracy-Game-GhostWalkers-4-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/7093096091/Judgment-Road-Torpedo-Ink-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/3096095096094096/Dark-Prince-Carpathians-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/7097094091/Covert-Game-GhostWalkers-14-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/6091097094097/Conspiracy-Game-GhostWalkers-4-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/2090090092096093/Dark-Prince-Carpathians-1-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/1098096097090090/Dark-Magic-Carpathians-4-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/1098096097095099/Dark-Desire-Carpathians-2-by-Christine-Feehan.pdf
    • http://loaminoo.linkpc.net/4096094090098098/Turbulent-Sea-Drake-Sisters-6-by

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