General
- Target Euphoria-Install.zip
- Size 121KB
- Sample260811-1hvjasdn5v
- SHA256 07be8ec1a15f4ca3af354ab896ca16099b4e80edb6b7ec193604e091291b442a
- MD5 b7cff25537d9b3fd0808d45292dcbc84
- SHA1 4f82af5bc339c86e5ac5242bdbfdcd76530a635d
- SHA512 9dba5496cc43722fd9bbfb422873263fbb057185cd8648090175c28d33cc0210790ddc75f036db75be76ad56014aab5410366b666e4c4ea6c670d2285d579f0d
- SSDEEP 3072:fd+zCIXKcGCIze5GuGk3ByLZ8iPZL2SNeR3U/X49e8Kwo:fd++I6oIy5ckR28iPZ2kPiefwo
- TLSH T1C3C312D3DB2D984ECDABD2B2A38475D5FA61F192BAD74401265FE33E007B4C18349826
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Euphoria-Install.zip
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Euphoria-Install.zip
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
VRChat_Data/Plugins/x86_64/steam_api64.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
VRChat_Data/Plugins/x86_64/steam_api64.dll
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target Euphoria-Install.zip
- Size 121KB
- SHA256 07be8ec1a15f4ca3af354ab896ca16099b4e80edb6b7ec193604e091291b442a
- MD5 b7cff25537d9b3fd0808d45292dcbc84
- SHA1 4f82af5bc339c86e5ac5242bdbfdcd76530a635d
- SHA512 9dba5496cc43722fd9bbfb422873263fbb057185cd8648090175c28d33cc0210790ddc75f036db75be76ad56014aab5410366b666e4c4ea6c670d2285d579f0d
- SSDEEP 3072:fd+zCIXKcGCIze5GuGk3ByLZ8iPZL2SNeR3U/X49e8Kwo:fd++I6oIy5ckR28iPZ2kPiefwo
- TLSH T1C3C312D3DB2D984ECDABD2B2A38475D5FA61F192BAD74401265FE33E007B4C18349826
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (6110) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Downloads MZ/PE file
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops desktop.ini file(s)
-
Drops file in System32 directory
-
- Target VRChat_Data/Plugins/x86_64/steam_api64.dll
- Size 240KB
- SHA256 8abf7afe81ff984c546e19ba62437cf6d90791b6811b48d0ce36a58b5f01229b
- MD5 cd46add52aea5ee1405d7e861c1563d3
- SHA1 fa906b0cfbade7ce050fe7d8ca4c9d33f571ff26
- SHA512 bd2e74a4d9078c6d74b68e4d99282d2bb6827b97c9d37abf6ab50867bf1efde9b23898cfbd7151114a49b9cd391717e6089590c0b5501deb36d8d65b079573c0
- SSDEEP 6144:RXaYGGPkzQZT8W097zLtB1MV06dK+SCKbZIiApv+:kdFRrCHdK+SvZIiA1
- TLSH T153347D25BAB508BEE577C57DC9434906E7B27C060770EADF03900AA61F277D49A3EB21
- MD5 SHA1 SHA512 SSDEEP TLSH
Score8/10-
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
4Subvert Trust Controls
2Install Root Certificate
2