RA Group attacks PIEX Group
Date:
September 4, 2023
Overview
Title
RA Group attacks PIEX Group
Victim
PIEX Group
Attacker
RA Group
Location
Size of Attack
Unknown/TBD
First Reported
September 4, 2023
Last Updated
October 31, 2022
The RA Group ransomware gang has attacked PIEX Group. PIEX Group is a French import/export company headquartered in Les Ulis, a suburb of Paris. RA Group posted PIEX Group to its data leak site on September 4th but provided no further details. Researchers first identified the RA Group on April 22nd, 2023, when it launched its data leak site. RA Group uses an encryptor based on Babuk's (another ransomware gang) leaked source code. The group primarily targets US manufacturing, pharmaceutical, insurance, and wealth management firms. RA Group uses double extortion tactics. The distinctive trait of the RA Group involves crafting a unique ransom note tailored for the specific organization under attack, and the malware's executable file is also named after the victim. The ransomware targets all logical drives on the victim's computer and network shares, seeking to encrypt specific folders. Notably, directories linked to the Windows system, boot files, Program Files, and similar components are excluded from encryption. This strategy is employed to prevent rendering the victim's system completely unusable, thereby reducing the likelihood of receiving a ransom payment. The encryptor used by the RA Group employs intermittent encryption. This method alternates between encrypting and not encrypting segments of a file, which accelerates the encryption process. However, this approach carries risks as it permits partial data recovery from files. The encryptor utilizes curve25519 and eSTREAM cipher hc-128 algorithms. The files that undergo encryption have the ".GAGUP" extension added to their filenames. Furthermore, any volume shadow copies and contents in the Recycle Bin are purged to hinder data restoration.
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