General
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Target
OperaSetup.exe
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Size
2.2MB
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Sample
250327-m56yys1sdv
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MD5
f099a70905dc5458118b34b5548c8dfa
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SHA1
227a6bb464c755f2772d199706cca6295acc6c87
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SHA256
7c1c2070a97f7651275c9dc556ba5e7bc3db91dc3107a6215395e7d41ede1bc9
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SHA512
5f6e5f53b643cc12148bfaeef4d934b40aa12d27caa15cc4891e9daed604e70729403d70eeeaa7e265f2a4f102b8abf49b3f19e137b15522fd79314c117f5ae1
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SSDEEP
49152:kVAbwveCLg0POqoz54LRI5j97ugj5TIn95QoqiiL6bylSTO4J:IAPCkYOpG897FGhI6xD
Static task
static1
Behavioral task
behavioral1
Sample
OperaSetup.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral2
Sample
OperaSetup.exe
Resource
win10ltsc2021-20250314-en
Malware Config
Targets
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Target
OperaSetup.exe
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Size
2.2MB
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MD5
f099a70905dc5458118b34b5548c8dfa
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SHA1
227a6bb464c755f2772d199706cca6295acc6c87
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SHA256
7c1c2070a97f7651275c9dc556ba5e7bc3db91dc3107a6215395e7d41ede1bc9
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SHA512
5f6e5f53b643cc12148bfaeef4d934b40aa12d27caa15cc4891e9daed604e70729403d70eeeaa7e265f2a4f102b8abf49b3f19e137b15522fd79314c117f5ae1
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SSDEEP
49152:kVAbwveCLg0POqoz54LRI5j97ugj5TIn95QoqiiL6bylSTO4J:IAPCkYOpG897FGhI6xD
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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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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Drops desktop.ini file(s)
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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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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Defense Evasion
Modify Registry
2Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1