Fake GTA VI Downloads Deliver RATs, an Infostealer and Destructive Malware

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Summary

Huntress analyzed a fake GTA VI ISO distributed through search results, forums, social media, and torrents. It installs multiple RATs, an infostealer, and ransomware used as a wiper, while displaying a fake license error.

Key points

  • The malware is distributed as a purported leaked GTA VI ISO, promoted through SEO poisoning, gaming forums, social media, and torrent sites.
  • The ISO’s fake installer deploys several NJRAT copies, DCRAT, the Mercurial Grabber infostealer, and Chaos ransomware.
  • The RATs enable remote control and data theft; the infostealer targets browser credentials, Discord tokens, gaming data, and other system information.
  • The ransomware disables recovery options, encrypts smaller files, and overwrites files larger than 200 MB, functioning as a wiper rather than a ransom operation.
  • A fake “license not found” message is displayed to make users think the game failed to install while malware runs in the background.
  • Huntress says updated Windows Defender can detect the analyzed malware; for an infected system, it recommends disconnecting from the network, resetting passwords, enabling 2FA, and reimaging the system.

Article Details

Attack Vectors
  • SEO-poisoned search results, gaming forums, social media posts, and torrenting sites distributed ISOs masquerading as leaked GTA6 downloads.
  • Executing the fake installer unpacked and installed multiple RATs, an infostealer, and ransomware used as a wiper.
  • The infostealer sent stolen information through a Discord webhook.
Defensive Notes
  • The article reports that an up-to-date Windows Defender can detect and stop the malware.
  • For a system where the malware was installed, the article recommends disconnecting it from the network, resetting passwords, enabling 2FA, and completely reimaging the system.
  • Avoid downloading cracked or pirated software, particularly unreleased games.

Indicators of compromise

TypeIndicatorContext
DOMAINa0700877[.]xsph[.]ruDomain to which DCRAT connects; the article says it is listed as known malicious infrastructure.
HOSTNAME7[.]tcp[.]eu[.]ngrok[.]ioNgrok tunneling hostname used by NJRAT; the article gives port 12684.
IPV4141[.]8[.]197[.]42IP address associated with the DCRAT connection to a0700877.xsph[.]ru.
IPV43[.]67[.]15[.]169IP address to which NJRAT instances connect.
IPV43[.]68[.]56[.]232IP address to which NJRAT instances connect.
IPV435[.]157[.]111[.]131IP address to which NJRAT instances connect.
MD50e39e8d7b641bcda4376ebbfeff7b12eHash of the script that displays a deceptive license-not-found message after the malware installation.
MD515eca4a3f7350423cf4db0b4c30d1968Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
MD52a0834560ed3770fc33d7a42f8229722Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
MD52a385fe7bed9899d77d05cb8e302d557Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
MD557b9c56ef97a7ada98257b23577bf5e3Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
MD560a0f58001ea7be538cd42b651924cc7Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
MD56b49f24d5d5b49127476bc385565f8b0Hash of the batch file used by the installer to check internet connectivity before unpacking malware.
MD58da3fe3664d81226b0fb2a50a0537d4fHash of the DCRAT copy or associated installation files.
MD5a15e280a3fd65dfaa243bbe2dbf45e97Hash of the fake GTA6 initial installation executable.
MD5b9648ec8cc806e7661aabcfc91dc836cHash of the Chaos ransomware binaries used as a wiper.
MD5dfdf5e5b78d2ec764c0e5641cf9a0d26Hash of the Mercurial Grabber infostealer binary.
MD5ea991bc9334b36a6b958f564ee716776Hash listed for a copy of NJRAT or an associated launcher in the fake game installation.
URLhxxps[:]//clck[.]ru/34uJnpURL contacted by the malicious batch file during installation to check internet connectivity.
URLhxxps[:]//discord[.]com/api/webhooks/995445114254139543/NmpxQmuBCD6sm3UkVvupGtx-Y0M_A86oJHp00O-l8F4jakfVhqFXzMBoy1uBDdj2rBLcDiscord webhook URL used by Mercurial Grabber to send stolen information.

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