Malicious PDF — malware analysis report

Static analysis result for SHA-256 7455bf60e291a518…

MALICIOUS

PDF

21.2 KB Created: 2019-05-02 06:08:44 +01:00 Authoring application: mPDF 5.7
MD5: 81b4ea04018a1160c09477e56af43740 SHA-1: 7d74a746f8c07a28257bcae45af48e073a9fd5b0 SHA-256: 7455bf60e291a5187310e947eb25b427ceca8f4eb924c6b714886454f2b46985
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 various PDF files hosted on the same domain. While the document body is corrupted, the presence of numerous external links suggests an attempt to direct users to download potentially malicious content disguised as academic material. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/9097098094098094/System-Modeling-and-Simulation-An-Introduction-by-Frank-L-Severance.pdf
    • http://loaminoo.linkpc.net/7092092090092095/Cellular-Automaton-Modeling-of-Biological-Pattern-Formation-Modeling-and-Simulation-in-Science-Engineering-and-Technology-by-Andreas-Deutsch.pdf
    • http://loaminoo.linkpc.net/9097098096094096/Theory-of-Modeling-and-Simulation-by-Bernard-P-Zeigler.pdf
    • http://loaminoo.linkpc.net/9097098096095093/Process-Control-Modeling-Design-and-Simulation-by-B-Wayne-Bequette.pdf
    • http://loaminoo.linkpc.net/9097098096093098/Business-Process-Modeling-Simulation-and-Design-by-Manuel-Laguna.pdf
    • http://loaminoo.linkpc.net/1091092093094095090/Nanoscale-Transistors-Device-Physics-Modeling-and-Simulation-by-Mark-Lundstrom.pdf
    • http://loaminoo.linkpc.net/1090099095095093094/Modeling-and-Simulation-Techniques-for-Improved-Business-Processes-by-Maryam-Ebrahimi.pdf
    • http://loaminoo.linkpc.net/9099091096097098/Introduction-to-Networking-How-the-Internet-Works-by-Charles-Severance.pdf
    • http://loaminoo.linkpc.net/7092093093096098/Probability-Markov-Chains-Queues-and-Simulation-The-Mathematical-Basis-of-Performance-Modeling-by-William-J-Stewart.pdf
    • http://loaminoo.linkpc.net/9097098094097093/Discrete-Event-System-Simulation-by-Jerry-Banks.pdf
    • http://loaminoo.linkpc.net/1090092097098096092/Handbook-Of-Processes-And-Modeling-In-The-Soil-Plant-System-by-Rolf-Nieder.pdf
    • http://loaminoo.linkpc.net/9097098097092094/Introduction-to-Simulation-Using-Siman-by-C-Dennis-Pegden.pdf
    • http://loaminoo.linkpc.net/8093094095099095/System-Analysis-and-Modeling-Models-and-Reusability-8th-International-Conference-Sam-2014-Valencia-Spain-September-29-30-2014-Proceedings-by-Daniel-Amyot.pdf
    • http://loaminoo.linkpc.net/1090093091095097091/Introduction-to-Cutting-and-Packing-Optimization-Problems-Modeling-Approaches-Solution-Methods-International-Series-in-Operations-Research-amp-Management-Science-by-Guntram-Scheithauer.pdf
    • http://loaminoo.linkpc.net/8090093093098097/Whose-Monet-An-Introduction-to-the-American-Legal-System-by-John-Humbach.pdf
    • http://loaminoo.linkpc.net/7091092093098092/Afro-Pessimism-An-Introduction-by-Frank-B-Wilderson-III.pdf
    • http://loaminoo.linkpc.net/1090095096090090094/Seneca-s-Phoenissae-Introduction-and-Commentary-by-Marica-Frank.pdf
    • http://loaminoo.linkpc.net/9091091094092098/Stanislavsky-on-the-Art-of-the-Stage-translated-with-an-introduction-on-Stanislavsky-s-System-by-David-Magarshack-by-Konstantin-Stanislavski.pdf
    • http://loaminoo.linkpc.net/8095099094/Severance-by-Ling-Ma.pdf
    • http://loaminoo.linkpc.net/4090091091093093/Severance-by-Robert-Olen-Butler.pdf