General
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Target
startup.exe
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Size
3.9MB
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Sample
230324-2bqgfabh5z
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MD5
e1825fc805a33dfa9c2801e769b42e10
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SHA1
404532b82eba283ea3b09468fc7010a70cb7d377
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SHA256
cefe5eb0a731e12ef6a1657b0627246c9c04db76d5f9ad532e181ef0ca1cd4fb
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SHA512
cb6d29f7c29b090230d64ba1998e14f669d5b58ecf79abe7c9f27839e0d2aa17123255ba4968383c0d77c8474461a313b98ec54bcffbfe2251068f40dc0efae4
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SSDEEP
98304:zQFKOoFJ9QennbKgb/ezPnz0KzsZGkNREdcbvmDH8U72ByrcGw:moFfQenzbGzPnIE0FDE6beDdKm
Static task
static1
Behavioral task
behavioral1
Sample
startup.exe
Resource
win10v2004-20230220-en
Malware Config
Targets
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Target
startup.exe
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Size
3.9MB
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MD5
e1825fc805a33dfa9c2801e769b42e10
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SHA1
404532b82eba283ea3b09468fc7010a70cb7d377
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SHA256
cefe5eb0a731e12ef6a1657b0627246c9c04db76d5f9ad532e181ef0ca1cd4fb
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SHA512
cb6d29f7c29b090230d64ba1998e14f669d5b58ecf79abe7c9f27839e0d2aa17123255ba4968383c0d77c8474461a313b98ec54bcffbfe2251068f40dc0efae4
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SSDEEP
98304:zQFKOoFJ9QennbKgb/ezPnz0KzsZGkNREdcbvmDH8U72ByrcGw:moFfQenzbGzPnIE0FDE6beDdKm
Score8/10-
Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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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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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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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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Legitimate hosting services abused for malware hosting/C2
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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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.
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