Malicious PDF — malware analysis report

Static analysis result for SHA-256 79fe52f9867a65b7…

MALICIOUS

PDF

14.5 KB Created: 2019-04-30 02:01:48 +01:00 Authoring application: mPDF 5.7
MD5: 7e0fcbbe886f0ef3f7a0f913e5c5164f SHA-1: 70e49be2622459ca83d508e1cb846da19e729314 SHA-256: 79fe52f9867a65b774243d37f903b1aef9d16a38d07d7b010d171e0eabc989a9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external resources. While the specific content of the DOC BODY is obfuscated, the presence of numerous links suggests a phishing or redirection attempt. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. No scripts were extracted, but the link farm indicates a likely attempt to lead the user to malicious content.

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/3090091092095095/Blackout-All-Clear-1-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2096091094090098/Blackout-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/3091096098096096/All-Clear-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2096094099095/The-Best-of-Connie-Willis-Award-Winning-Stories-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/3097097094094091/Time-is-the-Fire-The-Best-of-Connie-Willis-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2094094099094/Inside-Job-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/1096093098090098/Fire-Watch-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2094094098094/All-Seated-on-the-Ground-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2096095098094/Impossible-Things-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/1090095099094091/Uncharted-Territory-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/8096093095097095/A-Lot-Like-Christmas-Stories-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/4090095097097099/Futures-Imperfect-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/3096098095096098/All-Seated-on-the-Ground-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/8092098091093/Miracle-and-Other-Christmas-Stories-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/5095094091095094/Por-no-mencionar-al-perro-Historiadores-de-Oxford-2-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2094095093092/The-Winds-of-Marble-Arch-and-Other-Stories-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/4095090094095095/A-Woman-s-Liberation-A-Choice-of-Futures-by-and-About-Women-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/2098095098090093/Doomsday-Book-Oxford-Time-Travel-1-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/4099090094091094/Doomsday-Book-Oxford-Time-Travel-1-by-Connie-Willis.pdf
    • http://loaminoo.linkpc.net/8097093090097099/----Inu-wa-kanj-ni-iremasen-aruiwa-kieta-vikutoriach-kabin-no-nazo-Oxford-Time-Travel-2-by-Connie-Willis.pdf

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