I have the following pseudo code considering a ransomware methodology to encrypt files:
cFile = AESEncrypt(sessionKey, pFile, OFB, iv)
keyBlob = AESEncrypt(masterKey, sessionKey, OFB, iv)
ivBlob = AESEncrypt(masterKey, iv, ECB, null)
Aes 128 bytes is used for sure.
I don’t have information about master key, session key or ivblog or keyblog. Ivblog and keyblog are used to encrypt /decrypt cfile.
In this case the only thing I have is the m1.enc message in which the first line is personal information.
Based on the above, Is there any way to decrypt cfile (m1.enc in this case)?