Malicious PDF — malware analysis report

Static analysis result for SHA-256 a94a2a4905ffb44d…

MALICIOUS

PDF

33.7 KB Created: 2019-05-02 03:25:08 +01:00 Authoring application: mPDF 5.7
MD5: 25f40762ca8dd8f69ef423892f495ed8 SHA-1: 001b0ba16424534d3f4bb8c0723c5a932060a34f SHA-256: a94a2a4905ffb44d54d61812d2ddc6e7859818ed68157c798a6469b7eee782fa
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier with high confidence and contains a large number of embedded URLs. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, suggesting the document's primary purpose is to distribute these links. The embedded URLs themselves appear to be benign, but the sheer volume and the nature of the heuristic firing point towards malicious intent, likely for SEO manipulation or as a distribution vector for other threats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

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/1090093090098095094/SOFSEM-2004-Theory-and-Practice-of-Computer-Science-30th-Conference-on-Current-Trends-in-Theory-and-Practice-of-Computer-Science-Merin-Czech-Republic-2004-Lecture-Notes-in-Computer-Science-by-Peter-Van-Emde-Boas.pdf
    • http://loaminoo.linkpc.net/9096090097093093/Algebraic-Biology-Second-International-Conference-AB-2007-Castle-of-Hagenberg-Austria-July-2-4-2007-Proceedings-Lecture-Notes-in-Computer-Science-Computer-Science-and-General-Issues-by-Hirokazu-Anai.pdf
    • http://loaminoo.linkpc.net/1091094091095093093/Selected-Areas-In-Cryptography-11th-International-Workshop-Sac-2004-Waterloo-Canada-August-9-10-2004-Revised-Selected-Papers-Lecture-Notes-In-Computer-Science-Security-And-Cryptology-by-Helena-Handschuh.pdf
    • http://loaminoo.linkpc.net/1090097097090092090/Computer-Algebra-in-Scientific-Computing-20th-International-Workshop-CASC-2018-Lille-France-September-17-21-2018-Proceedings-Lecture-Notes-in-Computer-Science-by-Vladimir-P-Gerdt.pdf
    • http://loaminoo.linkpc.net/1090097096099099095/Computer-Algebra-in-Scientific-Computing-19th-International-Workshop-CASC-2017-Beijing-China-September-18-22-2017-Proceedings-Lecture-Notes-in-Computer-Science-by-Vladimir-P-Gerdt.pdf
    • http://loaminoo.linkpc.net/6094098094097096/Information-Literacy-Key-to-an-Inclusive-Society-4th-European-Conference-ECIL-2016-Prague-Czech-Republic-October-10-13-2016-Revised-Selected-Papers-in-Computer-and-Information-Science-by-Serap-Kurbanoglu.pdf
    • http://loaminoo.linkpc.net/6090096095098097/The-Semantic-Web-Latest-Advances-and-New-Domains-12th-European-Semantic-Web-Conference-ESWC-2015-Portoroz-Slovenia-May-31----June-4-2015-Proceedings-Lecture-Notes-in-Computer-Science-by-Fabien-Gandon.pdf
    • http://loaminoo.linkpc.net/8097097095094096/Stochastic-Algorithms-Foundations-And-Applications-International-Symposium-Saga-2001-Berlin-Germany-December-13-14-2001-Proceedings-Lecture-Notes-In-Computer-Science-by-Kathleen-Steinh-fel.pdf
    • http://loaminoo.linkpc.net/1090099091098093090/Web-Web-Services-and-Database-Systems-NODe-2002-Web-and-Database-Related-Workshops-Erfurt-Germany-October-7-10-2002-Revised-Papers-Lecture-Notes-in-Computer-Science-by-Akmal-Chaudhri.pdf
    • http://loaminoo.linkpc.net/1090092095097099095/Computer-Science-Art-by-Franke.pdf
    • http://loaminoo.linkpc.net/5093091092092093/Mathematics-for-Computer-Science-by-Eric-Lehman.pdf
    • http://loaminoo.linkpc.net/1091097098093098095/The-New-Turing-Omnibus-66-Excursions-In-Computer-Science-by-A-K-Dewdney.pdf
    • http://loaminoo.linkpc.net/6091093096096099/Multiple-Choice-Questions-in-Computer-Science-by-Ela-Kumar.pdf
    • http://loaminoo.linkpc.net/1091092098096093098/Math-Companion-For-Computer-Science-by-Zamir-Bavel.pdf
    • http://loaminoo.linkpc.net/6096095092091091/Mathematical-Foundation-of-Computer-Science-by-Rakesh-Dube.pdf
    • http://loaminoo.linkpc.net/1090092097093091098/The-History-of-the-Computer-PC-Peter-s-Computer-Classroom-Book-6-by-Anneline-Kinnear.pdf
    • http://loaminoo.linkpc.net/9096094094090090/Computer-Science-Programming-Basics-in-Ruby-by-Ophir-Frieder.pdf
    • http://loaminoo.linkpc.net/2095095096093096/Algorithms-To-Live-By-The-Computer-Science-of-Human-Decisions-by-Brian-Christian.pdf
    • http://loaminoo.linkpc.net/3090090091/Algorithms-to-Live-By-The-Computer-Science-of-Human-Decisions-by-Brian-Christian.pdf
    • http://loaminoo.linkpc.net/6097091096091099/Cognitive-Science-and-Its-Applications-for-Human-Computer-Interaction-by-Raymonde-Guindon.pdf
    • http://loaminoo.linkpc.net/1091094091095093093/Selected-Areas-In-Cryptography-11th-International-Workshop-Sac-2004-Waterloo-Canada-August-9-10-2004-Revised-Selected-Papers-Lectu

Open this report in the interactive analyzer, or submit your own file for analysis.