Malicious PDF — malware analysis report

Static analysis result for SHA-256 f929540282fc2fa8…

MALICIOUS

PDF

17.4 KB Created: 2019-04-30 06:14:14 +01:00 Authoring application: mPDF 5.7
MD5: 36cb5a8bd7eaddb86c7c6df5c1495641 SHA-1: 94fba49d1cd0eaad9a2ada6852db4f2470a56517 SHA-256: f929540282fc2fa82efc7bc0b1770cb62e4a9ebf5b71211f3707f908491414c8
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs disguised as book titles, indicative of a link farm or redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to malicious sites for further exploitation or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7153207-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7153207-0
  • 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/6090093095091095/Ender-s-Game-Ender-s-Saga-1-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/6096098096095/Ender-s-Game-Ender-s-Saga-1-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/2092098096099091/Beyond-Ender-s-Game-Speaker-for-the-Dead-Xenocide-Children-of-the-Mind-Ender-s-Saga-2-4-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/4096097097095/First-Meetings-in-Ender-s-Universe-Ender-s-Saga-0-5-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/2092098097095094/The-Ender-Wiggin-Saga-Ender-s-Saga-1-3-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/1093096090092099/The-Ender-Quartet-Box-Set-The-Ender-Quintet-1-4-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/2092098097092094/Ender-s-War-The-Ender-Quintet-1-2-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/2094099093098/Xenocide-Ender-s-Saga-3-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/5094095097097097/Xenocide-Ender-s-Saga-3-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/6097092096094094/Hijos-de-la-mente-Ender-s-Saga-4-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/4090091096095095/Speaker-for-the-Dead-Ender-s-Saga-2-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/1091095091092098093/Ender-s-Shadow-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/1093093095097094/Orson-Scott-Card-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Ender-Series-Formic-War-Series-Shadow-Series-Ender-Series-amp-Tales-of-Alvin-Maker-Series-Listabook-Series-Order-Book-15-by-Listabook.pdf
    • http://loaminoo.linkpc.net/1094093093091099/The-Ender-s-Shadow-Series-Box-Set-Shadow-1-4-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/4092094096097092/Ender-s-Shadow-Shadow-1-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/5094095097097092/Ender-s-Shadow-Shadow-1-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/4097091095090/The-Ships-of-Earth-Homecoming-Saga-3-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/5090093094095/The-Worthing-Saga-Worthing-1-3-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/6091093090096/Wyrms-by-Orson-Scott-Card.pdf
    • http://loaminoo.linkpc.net/2093090091097092/Empire-by-Orson-Scott-Card.pdf

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