PurposeConsumer animosity in the wake of Russia–Ukraine war has gained significance in consumer behavior research. In this line, this study aims to examine the critical influence of consumer animosity in developing brand attitude and its ensuing outcomes – brand boycott behavior and brand-country image – the moderating role of perceived intrusiveness on the relationship between consumer animosity and brand attitude and the moderating role of altruism between brand attitude and behavioral outcomes.Design/methodology/approachUsing the data obtained from 411 European consumers, data analysis was performed using structural equation modeling to examine the proposed relationships.FindingsThe findings revealed a strong negative influence of consumer animosity on brand attitude, which eventually leads to brand boycott behavior and a negative brand-country image. This work also confirmed the boundary condition of perceived intrusiveness on the effect of consumers’ animosity on brand attitude. Furthermore, the authors validated the moderating effects of altruistic behavior on the relationships between brand attitude and boycott behavior and brand-country image.Research limitations/implicationsThis study offers theoretical, practical and policy implications in international marketing domain. The authors acknowledged a few shortcomings and made some recommendations for future research.Originality/valueIn the context of the Russian–Ukraine war, this study creates a novel conceptual framework based on consumer animosity. In the current scenario, provide critical perspective on how European customers’ animosity to Russian brands develops their adverse attitudes. This study also highlighted the alternatives to Russian brands when they were boycotted during the Russia–Ukraine war.