Let's play RAR quest?

Hello!
I brought you a light RAR quest. The principle of the game is very simple - you need to go down deeper into the archive, using data from already opened files as passwords.

So, imagine that a few hours ago, a friend of yours in IT consulting received a letter from the assistant of a certain Alex Lockwood, director of the secret satellite program of the EDC corporation.
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Attachment .

UPD : Level 4 (a letter from the intermediary) is the wrong packaging. If you guess the code of Dmitry, take this one archive .