Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed2420ce32431fa…

MALICIOUS

PDF

12.6 KB Created: 2019-05-01 17:57:56 +01:00 Authoring application: mPDF 5.7
MD5: af2fcd1a8065ead2b9e33c06638b3e95 SHA-1: 0e843fc3924a8e0b687b6fd517eb6d5f4af24160 SHA-256: 7ed2420ce32431fad8e2789038f1dd247b88de542ccbb53b6063dae21aa8c97d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a PDF_SEO_LINK_FARM heuristic. These links point to book download pages, suggesting a lure to disguise malicious activity. While no scripts were extracted, the ML classifier flagged the PDF as malicious, indicating a high probability of harmful intent. The primary attack pattern involves directing users to external resources, potentially for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/3090097091099/Onyx-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3096092095091/Beginnings-Obsidian-amp-Onyx-Lux-1-2-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4096094094090/Opposition-Lux-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4090091097093096/Oblivion-Lux-1-5-2-5-3-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095092099095095/Obsidian-Lux-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6094091095/If-There-s-No-Tomorrow-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3092098094091/Origin-Lux-4-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4098093093092094/Shadows-Lux-0-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4092099095091099/Obsidian-Lux-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3092094090096/Obsidian-Lux-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4096094093098/Don-t-Look-Back-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3093092092093099/Opal-Lux-3-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/5090090097090093/Obsidian-Lux-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095093091093098/Opposition-Lux-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/2091093091091095/Daimon-Covenant-0-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3094090096092/Elixir-Covenant-3-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4091096097090090/The-Dead-List-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095093091093099/Pure-Covenant-2-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/5092094097/The-Struggle-Titan-3-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3092092093093099/Pure-Covenant-2-by-Jennifer-L-Armentrout.pdf

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