そうとしてくる

Hi. Please have a look at the underlined part. What does the くる mean here? I have never seen としてくる but I'm more familiar with としている (trying to do something).
Thank you,

Are you not familiar with -てくる and -ていく, where the movement verbs くる and いく are used as auxiliary verbs to express the notion of directionality, i.e. the action described by the verb moving toward or away (respectively) from the reference point in terms of physical distance, time, etc.? That's all that's going on here.

The presence of the volitional+ようとする form doesn't change the basic meaning of this. It's the same as the difference between 燻り出している and 燻り出してくる, except that the volitional+ようとする construction is there to express that it's an attempt.

To supplement bentenmusume-san's explanation, ～てくる can be used to indicate not only a physical direction of action but also abstract one.
e.g.
子供が反抗してくる。
上司が成果を求めてくる。

Thank you both!