General
- Target Terentiy.exe
- Size 639KB
- Sample260819-wr4fcafk3v
- SHA256 40be3661f8a88f75f5b5a3d5f61bb27631d851006ec80d787a35168d9c5301c0
- MD5 b15dafd25c6b8d96287fa9d1207c0f25
- SHA1 d23d35b935c08886434f9c730ffbd9da6c14ccf3
- SHA512 5977097ef2fa0d7e5e5e496a21f09b9ff9b555ecd9bcb3881508237bac6cf3cdf0ed3e593af8af777695b5e185d2a11f38a7e21a29fdcd2e151de7874b2fe220
- SSDEEP 12288:QqLSiguNr1+mWJLh6F0Y5aEY7dEsbpTD0wWCCnnkx6:QqeiguNr1+mWJcF0Y5lY7d90wWC90
- TLSH T1D2D4AE56A69407FDE0B7D178CA869A43F7B2784903606ADB039049B64F336E19F3F712
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Terentiy.exe
Resource
win10ltsc2021-20260513-en
Malware Config
Targets
-
- Target Terentiy.exe
- Size 639KB
- SHA256 40be3661f8a88f75f5b5a3d5f61bb27631d851006ec80d787a35168d9c5301c0
- MD5 b15dafd25c6b8d96287fa9d1207c0f25
- SHA1 d23d35b935c08886434f9c730ffbd9da6c14ccf3
- SHA512 5977097ef2fa0d7e5e5e496a21f09b9ff9b555ecd9bcb3881508237bac6cf3cdf0ed3e593af8af777695b5e185d2a11f38a7e21a29fdcd2e151de7874b2fe220
- SSDEEP 12288:QqLSiguNr1+mWJLh6F0Y5aEY7dEsbpTD0wWCCnnkx6:QqeiguNr1+mWJcF0Y5lY7d90wWC90
- TLSH T1D2D4AE56A69407FDE0B7D178CA869A43F7B2784903606ADB039049B64F336E19F3F712
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (718) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Disables RegEdit via registry modification
-
Disables Task Manager via registry modification
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Disables cmd.exe use via registry modification
-
Disables use of System Restore points
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
-
Impair Defenses: Safe Mode Boot
-
Adds Run key to start application
-
Drops desktop.ini file(s)
-
Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
-
Checks system information in the registry
System information is often read in order to detect sandboxing environments.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1