This study sought to investigate the impact of the adoption of social networks by Brazilian companies on their export behavior during the Covid-19 pandemic. Specifically, the study sought to understand to what extent these companies perceived themselves to be affected by the disruptive impacts of the pandemic, were oriented towards social media, used social media to acquire knowledge, recognize opportunities and interact with partners, and to what extent such use favored export behavior. The theoretical perspective adopted in the study was Everett Rogers Diffusion of Innovations Theory. The theoretical foundation was also based on the literature on technology adoption, particularly focused on digitalization and social networks, leading to the elaboration of a theoretical model and the formulation of 11 research hypotheses. The methodology adopted consisted of the application of an online survey with a convenience sample of micro and small Brazilian companies. The scales used to measure the constructs were identified in the literature, having been previously developed and validated by other authors. Data were collected through self-administered questionnaires made available on the internet, and an invitation was sent by email or through social networks containing the link to the questionnaire. The hypothesis test used structural equation modeling, and significant relationships were found between the main constructs of the model. The study s contributions to the Diffusion of Innovations Theory include a better understanding of the potential impact of disruptive events on the adoption of an innovation and the association between social media adoption and export adoption.