General
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Target
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5.exe
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Size
181KB
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Sample
250330-hbv75s11dv
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MD5
4b61967fdf02be7687b1490e15b9fd68
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SHA1
fad1ec3f9014432f8bc878c1424c7a7e56d6d729
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SHA256
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5
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SHA512
4cbcbe30b4cbc62268a28c4d711548d56f78b3dc82e1840061d1e0f2ecd8d9316ff5a42108ec7994f63fa0cbd088b0f5375e9f178840e21844bf5eebef7ace24
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SSDEEP
3072:rB/5U7rXgNoku2TspaCq7IUnQOuDE4cxmphmSkCRgOupmTZ0Nk5TqhpzWJy43UYl:rR5U7rwN02Tyq7IwQO54eMBkwXKmTZQq
Behavioral task
behavioral1
Sample
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5.exe
Resource
win10v2004-20250314-en
Malware Config
Extracted
C:\PerfLogs\readme_for_unlock.txt
https://gdpr-info.eu/
http://z6ig22odfrlgttti64avskvguqpjlmixzzaepm3xn2pmjkare5rjwpid.onion
Targets
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Target
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5.exe
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Size
181KB
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MD5
4b61967fdf02be7687b1490e15b9fd68
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SHA1
fad1ec3f9014432f8bc878c1424c7a7e56d6d729
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SHA256
f4ca0aaa779663297a6fb634fb3c9f775230e52a9fa733073fe8057b0e70a0f5
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SHA512
4cbcbe30b4cbc62268a28c4d711548d56f78b3dc82e1840061d1e0f2ecd8d9316ff5a42108ec7994f63fa0cbd088b0f5375e9f178840e21844bf5eebef7ace24
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SSDEEP
3072:rB/5U7rXgNoku2TspaCq7IUnQOuDE4cxmphmSkCRgOupmTZ0Nk5TqhpzWJy43UYl:rR5U7rwN02Tyq7IwQO54eMBkwXKmTZQq
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (185) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Disable or Modify System Firewall
1Indicator Removal
2File Deletion
2Modify Registry
3