General
- Target tera-term-5.6.1-installer.exe
- Size 2.0MB
- Sample260629-pgr61ac131
- SHA256 a8f2282b699ea8fce47fdc55619e0d14ef3fc76d8b4eb11675bfbf47bbdcc20b
- MD5 7ebd5da8a07677d46bac4f6ff6ca4077
- SHA1 3541b0b707184d7050999a5f9621e5e3148b987a
- SHA512 da26d969c0a4b49689046d3a820c41f1afedfd615bf716fd3b73f8bccb2814e20c0302c9ecd9965646961a59667ae62d2a624a30b08d4a0f34f7859ad88f558a
- SSDEEP 49152:buI5hbARebc1DYJjNU3id/fPilfX/Dr8iuqjjf:b5/bAR0cpGNUw/fPi5rQSf
- TLSH T19CA5D03FB28B753EE06E5A367A72E210593B7A6165134C1696F4C88CCF250B01E3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
tera-term-5.6.1-installer.exe
Resource
win10v2004-20260513-en
Malware Config
Targets
-
- Target tera-term-5.6.1-installer.exe
- Size 2.0MB
- SHA256 a8f2282b699ea8fce47fdc55619e0d14ef3fc76d8b4eb11675bfbf47bbdcc20b
- MD5 7ebd5da8a07677d46bac4f6ff6ca4077
- SHA1 3541b0b707184d7050999a5f9621e5e3148b987a
- SHA512 da26d969c0a4b49689046d3a820c41f1afedfd615bf716fd3b73f8bccb2814e20c0302c9ecd9965646961a59667ae62d2a624a30b08d4a0f34f7859ad88f558a
- SSDEEP 49152:buI5hbARebc1DYJjNU3id/fPilfX/Dr8iuqjjf:b5/bAR0cpGNUw/fPi5rQSf
- TLSH T19CA5D03FB28B753EE06E5A367A72E210593B7A6165134C1696F4C88CCF250B01E3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Downloads MZ/PE file
-
Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system boot.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Component Object Model Hijacking
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Modify Registry
4Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1