LLM accounts are certainly here - an example, from LightDM

There's this "emergent misalignment" paper that fine-tuned an LLM to insert vulnerabilities in code, which is a pretty narrow task, but the LLM also started responding to unrelated questions with cartoonishly evil answers (why not kill your husband, rob people to make a quick buck, or discuss a new world order with Göring and Himmler).

Because they're next token predictors, I think LLMs are in the business of trying to understand the type of person who wrote the input and role-playing what they might say next. When they're made to play the role of a cheap scammer or malware actor my guess is they drop the drop the verbose helpful assistant persona and try to play a cartoonish caricature of the type of person who sends spam and malware, grammatical errors and all.