General
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Target
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc.exe
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Size
2.2MB
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Sample
241029-cy8h4a1jfq
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MD5
cd0fdbf184a188298a847d17af361c7d
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SHA1
d6394498b1dc80e93010b835940a463383bcf08a
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SHA256
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc
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SHA512
08f5bcd179e16dc5bbc392bd70af00925e17e307de2c11b8f247b00f961f4d7861e6d52073ccac08bd48488f884c0b34154788062bfb799593c9546c6b173461
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SSDEEP
24576:2TbBv5rUyXVf7/weHc1lJq2tB/pw97SSwEWJSwDFrs7+6pa7gv6a9MrYetY5Q62w:IBJTqpji7SxFgz7XM7metv6s2N8WT
Static task
static1
Behavioral task
behavioral1
Sample
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc.exe
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Size
2.2MB
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MD5
cd0fdbf184a188298a847d17af361c7d
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SHA1
d6394498b1dc80e93010b835940a463383bcf08a
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SHA256
741e00a1f7ef7e5fe69144adfb6023fe14d29ddcd1b9982a3ebcbced6748e8fc
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SHA512
08f5bcd179e16dc5bbc392bd70af00925e17e307de2c11b8f247b00f961f4d7861e6d52073ccac08bd48488f884c0b34154788062bfb799593c9546c6b173461
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SSDEEP
24576:2TbBv5rUyXVf7/weHc1lJq2tB/pw97SSwEWJSwDFrs7+6pa7gv6a9MrYetY5Q62w:IBJTqpji7SxFgz7XM7metv6s2N8WT
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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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Dcrat family
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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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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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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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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1