Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9f5e2b08560c23…

MALICIOUS

PDF

12.5 KB Created: 2019-05-01 20:07:19 +01:00 Authoring application: mPDF 5.7
MD5: 651be92f7f4d1f79a15531081e40ea04 SHA-1: 48f4159420b4ff471daeee981d23d068ead9642e SHA-256: 7e9f5e2b08560c23c2aad8741e281c7c86dd7918dd6eadadbcceab288defcfaa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded URLs, forming a link farm. The ML classifier also flagged this PDF as malicious. The embedded URLs likely serve as a lure to direct users to potentially malicious content or for SEO poisoning purposes. No scripts were extracted, but the PDF structure itself is indicative of a malicious intent to redirect users.

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/4096094094090/Opposition-Lux-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095093091093098/Opposition-Lux-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095092099095095/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/6094091095/If-There-s-No-Tomorrow-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/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/3092098094091/Origin-Lux-4-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3090097091099/Onyx-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4096094093098/Don-t-Look-Back-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4092099095091099/Obsidian-Lux-1-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4098093093092094/Shadows-Lux-0-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/7092093/The-Dead-List-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3093093092098/Deity-Covenant-3-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/6095093091093099/Pure-Covenant-2-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/3094090096092/Elixir-Covenant-3-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/4099098096096090/Elixir-Covenant-3-5-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/1094098093094097/Pure-Covenant-2-by-Jennifer-L-Armentrout.pdf
    • http://loaminoo.linkpc.net/2091093091091095/Daimon-Covenant-0-5-by-Jennifer-L-Armentrout.pdf

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