General
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Target
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db.exe
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Size
3.3MB
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Sample
240618-vldr3ascqa
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MD5
20ba93789eb7001ba9e4842bcc69fe62
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SHA1
4f2de529f2094f978d35cfb040cbd6e7c6274f98
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SHA256
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db
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SHA512
327f2a7900f9900a6fb6f86f46efb8936b0327142f8e7120cd9d3db7b87b762c2288971b48ffe8fd3ec2e751f492652fb87da8197becf9b30e59b3d9247934b1
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SSDEEP
49152:5PVa2oTM2mNcc1txMW/ixmw5d2eca2FBXElIu1KGwuEZ1Lz+6:5P932cd1txhi55Ie72kIu1xw5z+
Behavioral task
behavioral1
Sample
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db.exe
Resource
win10v2004-20240611-en
Malware Config
Targets
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Target
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db.exe
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Size
3.3MB
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MD5
20ba93789eb7001ba9e4842bcc69fe62
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SHA1
4f2de529f2094f978d35cfb040cbd6e7c6274f98
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SHA256
5d78dc803d29fba00eb080a58f1d85c33dbf50834886337083269ca1b5f1c1db
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SHA512
327f2a7900f9900a6fb6f86f46efb8936b0327142f8e7120cd9d3db7b87b762c2288971b48ffe8fd3ec2e751f492652fb87da8197becf9b30e59b3d9247934b1
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SSDEEP
49152:5PVa2oTM2mNcc1txMW/ixmw5d2eca2FBXElIu1KGwuEZ1Lz+6:5P932cd1txhi55Ie72kIu1xw5z+
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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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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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1