General
- Target utweb_installer.exe
- Size 2.1MB
- Sample260806-j8fpdsxakh
- SHA256 f21e839dfc0b5ddaa49a384a046a8a14682e84437f7cb864909d3b58e495f445
- MD5 eca5ae1367dce417229148a176d72726
- SHA1 4ba85cd2df329b965677ae5b72b81f7a83c6e50b
- SHA512 74bb6c3088deaca240e646afce6bd51582c8fb123c0e957e1ac9aebde85a7fd73a2df2ea729f67c5c7344c1165bcf17e29823c9efd97225b9280a9a204ef1fc8
- SSDEEP 24576:yXNrSLScusMmOvjjhzvLJz23AawLR9DC+UmvcnYTn0eaR+rE4mUzJFZhYJLchaf2:9uI2hQILR91jUnc0r143zZ+vFOoljU
- TLSH T1D0A5D03FB28B753EE06A5A3A7AB6E210543B7E61A4134C1696E4E44CCF350B01D3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
utweb_installer.exe
Resource
win10v2004-20260513-en
23 signatures
150 seconds
Malware Config
Targets
-
- Target utweb_installer.exe
- Size 2.1MB
- SHA256 f21e839dfc0b5ddaa49a384a046a8a14682e84437f7cb864909d3b58e495f445
- MD5 eca5ae1367dce417229148a176d72726
- SHA1 4ba85cd2df329b965677ae5b72b81f7a83c6e50b
- SHA512 74bb6c3088deaca240e646afce6bd51582c8fb123c0e957e1ac9aebde85a7fd73a2df2ea729f67c5c7344c1165bcf17e29823c9efd97225b9280a9a204ef1fc8
- SSDEEP 24576:yXNrSLScusMmOvjjhzvLJz23AawLR9DC+UmvcnYTn0eaR+rE4mUzJFZhYJLchaf2:9uI2hQILR91jUnc0r143zZ+vFOoljU
- TLSH T1D0A5D03FB28B753EE06A5A3A7AB6E210543B7E61A4134C1696E4E44CCF350B01D3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Downloads MZ/PE file
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
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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.
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
MITRE ATT&CK Enterprise v16
Defense Evasion
Modify Registry
1Pre-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