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General
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Target
Utsysc.exe
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Size
5.4MB
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Sample
231126-3dznkada5s
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MD5
42adcf27247e2f9324ded079d3b52613
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SHA1
51793943f7803bdbbb569448c83ca284dc7cb273
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SHA256
650513f90b4b88bd0c4564016b87b00db1999c1f281cce6a6e8718bfaa5d8ab9
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SHA512
7ca2a7bb790e64fac47333bea915f736f0b09dcf6155cc6d02cc28b1087ef19ea72b5fa770fd43c9a2dad7d032b5dfd7e21f38ef1c2c9897ce5c6c64c5927334
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SSDEEP
98304:sIk4EA1UcVPv/GTBiktXL4f7sFjhB7PIf119llL2o+PifA73QHERfgu+rpzTPXp/:sjAaoLS67sFjh6d1Dco+N3ghrVXEq
Behavioral task
behavioral1
Sample
Utsysc.exe
Resource
win7-20231020-en
Malware Config
Targets
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Target
Utsysc.exe
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Size
5.4MB
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MD5
42adcf27247e2f9324ded079d3b52613
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SHA1
51793943f7803bdbbb569448c83ca284dc7cb273
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SHA256
650513f90b4b88bd0c4564016b87b00db1999c1f281cce6a6e8718bfaa5d8ab9
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SHA512
7ca2a7bb790e64fac47333bea915f736f0b09dcf6155cc6d02cc28b1087ef19ea72b5fa770fd43c9a2dad7d032b5dfd7e21f38ef1c2c9897ce5c6c64c5927334
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SSDEEP
98304:sIk4EA1UcVPv/GTBiktXL4f7sFjhB7PIf119llL2o+PifA73QHERfgu+rpzTPXp/:sjAaoLS67sFjh6d1Dco+N3ghrVXEq
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Suspicious use of NtSetInformationThreadHideFromDebugger
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